expand on click

android/.idea/assetWizardSettings.xml

@@ -14,8 +14,8 @@
                         <option name="values">
                           <map>
                             <entry key="assetSourceType" value="FILE" />
-                            <entry key="outputName" value="priority_low" />
-                            <entry key="sourceFile" value="C:\Users\Mike\Downloads\Low Priority-595b40b75ba036ed117d9842.svg" />
+                            <entry key="outputName" value="ic_garbage" />
+                            <entry key="sourceFile" value="C:\Users\Mike\Downloads\garbage.svg" />
                           </map>
                         </option>
                       </PersistentState>

android/app/src/main/AndroidManifest.xml

@@ -36,6 +36,8 @@
             </intent-filter>
         </service>
 
+        <receiver android:name=".service.BroadcastReceiverService" android:exported="false" />
+
     </application>
 
 </manifest>

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/SCNApp.java

@@ -19,7 +19,7 @@ import androidx.lifecycle.ProcessLifecycleOwner;
 public class SCNApp extends Application implements LifecycleObserver
 {
     private static SCNApp instance;
-    private static WeakReference<MainActivity> mainActivity;
+    private static WeakReference<MainActivity> mainActivity = new WeakReference<>(null);
 
     public static final boolean LOCAL_DEBUG = BuildConfig.DEBUG;
     public static final boolean DEBUG       = BuildConfig.DEBUG || !BuildConfig.VERSION_NAME.endsWith(".0");
@@ -102,33 +102,11 @@ public class SCNApp extends Application implements LifecycleObserver
 /*
  ==TODO==
 
-[X] - Pro mode
-[X]    - no ads
-[X]    - more quota
-[X]    - restore pro mode
-[X]    - send pro state to server
-
-[X] - prevent duplicate-send
-[X]    - send custom msg-id in API
-[X]    - prevent second ack on same msg-id
-
-[X]  - more in-depth API doc on website (?)
-
-[X]  - perhaps response codes in api (?)
-
-[X]  - verify recieve
-
-[ ]  - Android O repeat sound
-
 [ ]  - test notification channels
+[ ]  - startup time
+[ ]  - periodically get non-ack (option - even when not in-app)
 
-[ ] - publish (+ HN post ?)
+[ ]  - publish (+ HN post ?)
 
-[ ] - Use for mscom server errrors
-[ ] - Use for bfb server errors
-[ ] - Use for transmission state
-[ ]    - Message on connnection lost (seperate process - resend until succ)
-[ ]    - Message on connnection regained
-[ ]    - Message on seed-count changed
 
 */

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/lib/lambda/FI.java

@@ -0,0 +1,29 @@
+package com.blackforestbytes.simplecloudnotifier.lib.lambda;
+
+import android.widget.SeekBar;
+
+public final class FI
+{
+    private FI() throws InstantiationException { throw new InstantiationException(); }
+
+    public static SeekBar.OnSeekBarChangeListener SeekBarChanged(Func3to0<SeekBar, Integer, Boolean> action)
+    {
+        return new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                action.invoke(seekBar, progress, fromUser);
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        };
+    }
+
+}

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/lib/lambda/Func3to0.java

@@ -0,0 +1,6 @@
+package com.blackforestbytes.simplecloudnotifier.lib.lambda;
+
+@FunctionalInterface
+public interface Func3to0<TInput1, TInput2, TInput3> {
+	void invoke(TInput1 value1, TInput2 value2, TInput3 value3);
+}

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/lib/lambda/Func4to0.java

@@ -0,0 +1,6 @@
+package com.blackforestbytes.simplecloudnotifier.lib.lambda;
+
+@FunctionalInterface
+public interface Func4to0<TInput1, TInput2, TInput3, TInput4> {
+	void invoke(TInput1 value1, TInput2 value2, TInput3 value3, TInput4 value4);
+}

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/CMessageList.java

@@ -3,15 +3,19 @@ package com.blackforestbytes.simplecloudnotifier.model;
 import android.content.Context;
 import android.content.SharedPreferences;
 
+import com.blackforestbytes.simplecloudnotifier.lib.string.Str;
 import com.blackforestbytes.simplecloudnotifier.view.MessageAdapter;
 import com.blackforestbytes.simplecloudnotifier.SCNApp;
 
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Set;
 
 public class CMessageList
 {
     public ArrayList<CMessage> Messages;
+    public Set<String> AllAcks;
 
     private ArrayList<WeakReference<MessageAdapter>> _listener = new ArrayList<>();
 
@@ -29,6 +33,7 @@ public class CMessageList
     private CMessageList()
     {
         Messages = new ArrayList<>();
+        AllAcks  = new HashSet<>();
 
         SharedPreferences sharedPref = SCNApp.getContext().getSharedPreferences("CMessageList", Context.MODE_PRIVATE);
         int count = sharedPref.getInt("message_count", 0);
@@ -42,6 +47,8 @@ public class CMessageList
 
             Messages.add(new CMessage(scnid, time, title, content, prio));
         }
+
+        AllAcks = sharedPref.getStringSet("acks", new HashSet<>());
     }
 
     public CMessage add(final long scnid, final long time, final String title, final String content, final PriorityEnum pe)
@@ -56,6 +63,7 @@ public class CMessageList
             SharedPreferences.Editor e = sharedPref.edit();
 
             Messages.add(msg);
+            AllAcks.add(Long.toHexString(msg.SCN_ID));
 
             while (Messages.size()>SCNSettings.inst().LocalCacheSize) Messages.remove(0);
 
@@ -66,6 +74,8 @@ public class CMessageList
             e.putInt(   "message["+count+"].priority",  pe.ID);
             e.putLong(  "message["+count+"].scnid",     scnid);
 
+            e.putStringSet("acks", AllAcks);
+
             e.apply();
 
             for (WeakReference<MessageAdapter> ref : _listener)
@@ -73,6 +83,7 @@ public class CMessageList
                 MessageAdapter a = ref.get();
                 if (a == null) continue;
                 a.customNotifyItemInserted(count);
+                a.scrollToTop();
             }
             CleanUpListener();
         });
@@ -80,6 +91,7 @@ public class CMessageList
         if (!run)
         {
             Messages.add(new CMessage(scnid, time, title, content, pe));
+            AllAcks.add(Long.toHexString(msg.SCN_ID));
             fullSave();
         }
 
@@ -118,6 +130,8 @@ public class CMessageList
             e.putLong(  "message["+i+"].scnid",     Messages.get(i).SCN_ID);
         }
 
+        e.putStringSet("acks", AllAcks);
+
         e.apply();
     }
 
@@ -127,6 +141,11 @@ public class CMessageList
         return Messages.get(pos);
     }
 
+    public CMessage tryGetFromBack(int pos)
+    {
+        return tryGet(Messages.size() - pos - 1);
+    }
+
     public int size()
     {
         return Messages.size();
@@ -145,4 +164,21 @@ public class CMessageList
             if (_listener.get(i).get() == null) _listener.remove(i);
         }
     }
+
+    public boolean isAck(long id)
+    {
+        return AllAcks.contains(Long.toHexString(id));
+    }
+
+    public void remove(int index)
+    {
+        Messages.remove(index);
+        fullSave();
+    }
+
+    public void insert(int index, CMessage item)
+    {
+        Messages.add(index, item);
+        fullSave();
+    }
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/NotificationSettings.java

@@ -11,6 +11,9 @@ public class NotificationSettings
     public String SoundSource;
     public boolean RepeatSound;
 
+    public boolean ForceVolume;
+    public int ForceVolumeValue;
+
     public boolean EnableLED;
     public int LEDColor;
 
@@ -18,12 +21,14 @@ public class NotificationSettings
 
     public NotificationSettings(PriorityEnum p)
     {
-        EnableSound     = (p == PriorityEnum.HIGH);
-        SoundName       = (p == PriorityEnum.HIGH) ? "Default" : "";
-        SoundSource     = (p == PriorityEnum.HIGH) ? RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION).toString() : Uri.EMPTY.toString();
-        RepeatSound     = false;
-        EnableLED       = (p == PriorityEnum.HIGH) || (p == PriorityEnum.NORMAL);
-        LEDColor        = Color.BLUE;
-        EnableVibration = (p == PriorityEnum.HIGH) || (p == PriorityEnum.NORMAL);
+        EnableSound      = (p == PriorityEnum.HIGH);
+        SoundName        = "Default";
+        SoundSource      = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION).toString();
+        RepeatSound      = false;
+        EnableLED        = (p == PriorityEnum.HIGH) || (p == PriorityEnum.NORMAL);
+        LEDColor         = Color.BLUE;
+        EnableVibration  = (p == PriorityEnum.HIGH) || (p == PriorityEnum.NORMAL);
+        ForceVolume      = false;
+        ForceVolumeValue = 50;
     }
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/SCNSettings.java

@@ -71,29 +71,35 @@ public class SCNSettings
         Enabled                     = sharedPref.getBoolean("app_enabled",  Enabled);
         LocalCacheSize              = sharedPref.getInt("local_cache_size", LocalCacheSize);
 
-        PriorityLow.EnableLED        = sharedPref.getBoolean("priority_low:enabled_led",       PriorityLow.EnableLED);
-        PriorityLow.EnableSound      = sharedPref.getBoolean("priority_low:enabled_sound",     PriorityLow.EnableSound);
-        PriorityLow.EnableVibration  = sharedPref.getBoolean("priority_low:enabled_vibration", PriorityLow.EnableVibration);
-        PriorityLow.RepeatSound      = sharedPref.getBoolean("priority_low:repeat_sound",      PriorityLow.RepeatSound);
-        PriorityLow.SoundName        = sharedPref.getString( "priority_low:sound_name",        PriorityLow.SoundName);
-        PriorityLow.SoundSource      = sharedPref.getString( "priority_low:sound_source",      PriorityLow.SoundSource);
-        PriorityLow.LEDColor         = sharedPref.getInt(    "priority_low:led_color",         PriorityLow.LEDColor);
+        PriorityLow.EnableLED         = sharedPref.getBoolean("priority_low:enabled_led",         PriorityLow.EnableLED);
+        PriorityLow.EnableSound       = sharedPref.getBoolean("priority_low:enabled_sound",       PriorityLow.EnableSound);
+        PriorityLow.EnableVibration   = sharedPref.getBoolean("priority_low:enabled_vibration",   PriorityLow.EnableVibration);
+        PriorityLow.RepeatSound       = sharedPref.getBoolean("priority_low:repeat_sound",        PriorityLow.RepeatSound);
+        PriorityLow.SoundName         = sharedPref.getString( "priority_low:sound_name",          PriorityLow.SoundName);
+        PriorityLow.SoundSource       = sharedPref.getString( "priority_low:sound_source",        PriorityLow.SoundSource);
+        PriorityLow.LEDColor          = sharedPref.getInt(    "priority_low:led_color",           PriorityLow.LEDColor);
+        PriorityLow.ForceVolume       = sharedPref.getBoolean("priority_low:force_volume",        PriorityLow.ForceVolume);
+        PriorityLow.ForceVolumeValue  = sharedPref.getInt(    "priority_low:force_volume_value",  PriorityLow.ForceVolumeValue);
 
-        PriorityNorm.EnableLED       = sharedPref.getBoolean("priority_norm:enabled_led",       PriorityNorm.EnableLED);
-        PriorityNorm.EnableSound     = sharedPref.getBoolean("priority_norm:enabled_sound",     PriorityNorm.EnableSound);
-        PriorityNorm.EnableVibration = sharedPref.getBoolean("priority_norm:enabled_vibration", PriorityNorm.EnableVibration);
-        PriorityNorm.RepeatSound     = sharedPref.getBoolean("priority_norm:repeat_sound",      PriorityNorm.RepeatSound);
-        PriorityNorm.SoundName       = sharedPref.getString( "priority_norm:sound_name",        PriorityNorm.SoundName);
-        PriorityNorm.SoundSource     = sharedPref.getString( "priority_norm:sound_source",      PriorityNorm.SoundSource);
-        PriorityNorm.LEDColor        = sharedPref.getInt(    "priority_norm:led_color",         PriorityNorm.LEDColor);
+        PriorityNorm.EnableLED        = sharedPref.getBoolean("priority_norm:enabled_led",        PriorityNorm.EnableLED);
+        PriorityNorm.EnableSound      = sharedPref.getBoolean("priority_norm:enabled_sound",      PriorityNorm.EnableSound);
+        PriorityNorm.EnableVibration  = sharedPref.getBoolean("priority_norm:enabled_vibration",  PriorityNorm.EnableVibration);
+        PriorityNorm.RepeatSound      = sharedPref.getBoolean("priority_norm:repeat_sound",       PriorityNorm.RepeatSound);
+        PriorityNorm.SoundName        = sharedPref.getString( "priority_norm:sound_name",         PriorityNorm.SoundName);
+        PriorityNorm.SoundSource      = sharedPref.getString( "priority_norm:sound_source",       PriorityNorm.SoundSource);
+        PriorityNorm.LEDColor         = sharedPref.getInt(    "priority_norm:led_color",          PriorityNorm.LEDColor);
+        PriorityNorm.ForceVolume      = sharedPref.getBoolean("priority_norm:force_volume",       PriorityNorm.ForceVolume);
+        PriorityNorm.ForceVolumeValue = sharedPref.getInt(    "priority_norm:force_volume_value", PriorityNorm.ForceVolumeValue);
 
-        PriorityHigh.EnableLED       = sharedPref.getBoolean("priority_high:enabled_led",       PriorityHigh.EnableLED);
-        PriorityHigh.EnableSound     = sharedPref.getBoolean("priority_high:enabled_sound",     PriorityHigh.EnableSound);
-        PriorityHigh.EnableVibration = sharedPref.getBoolean("priority_high:enabled_vibration", PriorityHigh.EnableVibration);
-        PriorityHigh.RepeatSound     = sharedPref.getBoolean("priority_high:repeat_sound",      PriorityHigh.RepeatSound);
-        PriorityHigh.SoundName       = sharedPref.getString( "priority_high:sound_name",        PriorityHigh.SoundName);
-        PriorityHigh.SoundSource     = sharedPref.getString( "priority_high:sound_source",      PriorityHigh.SoundSource);
-        PriorityHigh.LEDColor        = sharedPref.getInt(    "priority_high:led_color",         PriorityHigh.LEDColor);
+        PriorityHigh.EnableLED        = sharedPref.getBoolean("priority_high:enabled_led",        PriorityHigh.EnableLED);
+        PriorityHigh.EnableSound      = sharedPref.getBoolean("priority_high:enabled_sound",      PriorityHigh.EnableSound);
+        PriorityHigh.EnableVibration  = sharedPref.getBoolean("priority_high:enabled_vibration",  PriorityHigh.EnableVibration);
+        PriorityHigh.RepeatSound      = sharedPref.getBoolean("priority_high:repeat_sound",       PriorityHigh.RepeatSound);
+        PriorityHigh.SoundName        = sharedPref.getString( "priority_high:sound_name",         PriorityHigh.SoundName);
+        PriorityHigh.SoundSource      = sharedPref.getString( "priority_high:sound_source",       PriorityHigh.SoundSource);
+        PriorityHigh.LEDColor         = sharedPref.getInt(    "priority_high:led_color",          PriorityHigh.LEDColor);
+        PriorityHigh.ForceVolume      = sharedPref.getBoolean("priority_high:force_volume",       PriorityHigh.ForceVolume);
+        PriorityHigh.ForceVolumeValue = sharedPref.getInt(    "priority_high:force_volume_value", PriorityHigh.ForceVolumeValue);
     }
 
     public void save()
@@ -101,39 +107,45 @@ public class SCNSettings
         SharedPreferences sharedPref = SCNApp.getContext().getSharedPreferences("Config", Context.MODE_PRIVATE);
         SharedPreferences.Editor e = sharedPref.edit();
 
-        e.putInt(    "quota_curr",                      quota_curr);
-        e.putInt(    "quota_max",                       quota_max);
-        e.putInt(    "user_id",                         user_id);
-        e.putString( "user_key",                        user_key);
-        e.putString( "fcm_token_local",                 fcm_token_local);
-        e.putString( "fcm_token_server",                fcm_token_server);
+        e.putInt(    "quota_curr",                       quota_curr);
+        e.putInt(    "quota_max",                        quota_max);
+        e.putInt(    "user_id",                          user_id);
+        e.putString( "user_key",                         user_key);
+        e.putString( "fcm_token_local",                  fcm_token_local);
+        e.putString( "fcm_token_server",                 fcm_token_server);
 
-        e.putBoolean("app_enabled",                     Enabled);
-        e.putInt(    "local_cache_size",                LocalCacheSize);
+        e.putBoolean("app_enabled",                      Enabled);
+        e.putInt(    "local_cache_size",                 LocalCacheSize);
 
-        e.putBoolean("priority_low:enabled_led",        PriorityLow.EnableLED);
-        e.putBoolean("priority_low:enabled_sound",      PriorityLow.EnableSound);
-        e.putBoolean("priority_low:enabled_vibration",  PriorityLow.EnableVibration);
-        e.putBoolean("priority_low:repeat_sound",       PriorityLow.RepeatSound);
-        e.putString( "priority_low:sound_name",         PriorityLow.SoundName);
-        e.putString( "priority_low:sound_source",       PriorityLow.SoundSource);
-        e.putInt(    "priority_low:led_color",          PriorityLow.LEDColor);
+        e.putBoolean("priority_low:enabled_led",         PriorityLow.EnableLED);
+        e.putBoolean("priority_low:enabled_sound",       PriorityLow.EnableSound);
+        e.putBoolean("priority_low:enabled_vibration",   PriorityLow.EnableVibration);
+        e.putBoolean("priority_low:repeat_sound",        PriorityLow.RepeatSound);
+        e.putString( "priority_low:sound_name",          PriorityLow.SoundName);
+        e.putString( "priority_low:sound_source",        PriorityLow.SoundSource);
+        e.putInt(    "priority_low:led_color",           PriorityLow.LEDColor);
+        e.putBoolean("priority_low:force_volume",        PriorityLow.ForceVolume);
+        e.putInt(    "priority_low:force_volume_value",  PriorityLow.ForceVolumeValue);
 
-        e.putBoolean("priority_norm:enabled_led",       PriorityNorm.EnableLED);
-        e.putBoolean("priority_norm:enabled_sound",     PriorityNorm.EnableSound);
-        e.putBoolean("priority_norm:enabled_vibration", PriorityNorm.EnableVibration);
-        e.putBoolean("priority_norm:repeat_sound",      PriorityNorm.RepeatSound);
-        e.putString( "priority_norm:sound_name",        PriorityNorm.SoundName);
-        e.putString( "priority_norm:sound_source",      PriorityNorm.SoundSource);
-        e.putInt(    "priority_norm:led_color",         PriorityNorm.LEDColor);
+        e.putBoolean("priority_norm:enabled_led",        PriorityNorm.EnableLED);
+        e.putBoolean("priority_norm:enabled_sound",      PriorityNorm.EnableSound);
+        e.putBoolean("priority_norm:enabled_vibration",  PriorityNorm.EnableVibration);
+        e.putBoolean("priority_norm:repeat_sound",       PriorityNorm.RepeatSound);
+        e.putString( "priority_norm:sound_name",         PriorityNorm.SoundName);
+        e.putString( "priority_norm:sound_source",       PriorityNorm.SoundSource);
+        e.putInt(    "priority_norm:led_color",          PriorityNorm.LEDColor);
+        e.putBoolean("priority_norm:force_volume",       PriorityNorm.ForceVolume);
+        e.putInt(    "priority_norm:force_volume_value", PriorityNorm.ForceVolumeValue);
 
-        e.putBoolean("priority_high:enabled_led",       PriorityHigh.EnableLED);
-        e.putBoolean("priority_high:enabled_sound",     PriorityHigh.EnableSound);
-        e.putBoolean("priority_high:enabled_vibration", PriorityHigh.EnableVibration);
-        e.putBoolean("priority_high:repeat_sound",      PriorityHigh.RepeatSound);
-        e.putString( "priority_high:sound_name",        PriorityHigh.SoundName);
-        e.putString( "priority_high:sound_source",      PriorityHigh.SoundSource);
-        e.putInt(    "priority_high:led_color",         PriorityHigh.LEDColor);
+        e.putBoolean("priority_high:enabled_led",        PriorityHigh.EnableLED);
+        e.putBoolean("priority_high:enabled_sound",      PriorityHigh.EnableSound);
+        e.putBoolean("priority_high:enabled_vibration",  PriorityHigh.EnableVibration);
+        e.putBoolean("priority_high:repeat_sound",       PriorityHigh.RepeatSound);
+        e.putString( "priority_high:sound_name",         PriorityHigh.SoundName);
+        e.putString( "priority_high:sound_source",       PriorityHigh.SoundSource);
+        e.putInt(    "priority_high:led_color",          PriorityHigh.LEDColor);
+        e.putBoolean("priority_high:force_volume",       PriorityHigh.ForceVolume);
+        e.putInt(    "priority_high:force_volume_value", PriorityHigh.ForceVolumeValue);
 
         e.apply();
     }
@@ -155,7 +167,7 @@ public class SCNSettings
         {
             fcm_token_local = token;
             save();
-            if (!fcm_token_local.equals(fcm_token_server)) ServerCommunication.update(user_id, user_key, fcm_token_local, loader);
+            if (!fcm_token_local.equals(fcm_token_server)) ServerCommunication.updateFCMToken(user_id, user_key, fcm_token_local, loader);
         }
         else
         {
@@ -187,7 +199,7 @@ public class SCNSettings
     {
         if (!isConnected()) return;
 
-        ServerCommunication.update(user_id, user_key, loader);
+        ServerCommunication.resetSecret(user_id, user_key, loader);
     }
 
     // refresh account data

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/ServerCommunication.java

@@ -5,7 +5,9 @@ import android.view.View;
 
 import com.blackforestbytes.simplecloudnotifier.SCNApp;
 import com.blackforestbytes.simplecloudnotifier.lib.string.Str;
+import com.blackforestbytes.simplecloudnotifier.service.FBMService;
 
+import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 import org.json.JSONTokener;
@@ -22,7 +24,7 @@ import okhttp3.ResponseBody;
 
 public class ServerCommunication
 {
-    public static final String BASE_URL = /*SCNApp.LOCAL_DEBUG ? "http://localhost:1010/" : */"https://scn.blackforestbytes.com/";
+    public static final String BASE_URL = /*SCNApp.LOCAL_DEBUG ? "http://localhost:1010/" : */"https://scn.blackforestbytes.com/api/";
 
     private static final OkHttpClient client = new OkHttpClient();
 
@@ -94,12 +96,12 @@ public class ServerCommunication
         }
     }
 
-    public static void update(int id, String key, String token, View loader)
+    public static void updateFCMToken(int id, String key, String token, View loader)
     {
         try
         {
             Request request = new Request.Builder()
-                    .url(BASE_URL + "update.php?user_id="+id+"&user_key="+key+"&fcm_token="+token)
+                    .url(BASE_URL + "updateFCMToken.php?user_id="+id+"&user_key="+key+"&fcm_token="+token)
                     .build();
 
             client.newCall(request).enqueue(new Callback()
@@ -160,12 +162,12 @@ public class ServerCommunication
         }
     }
 
-    public static void update(int id, String key, View loader)
+    public static void resetSecret(int id, String key, View loader)
     {
         try
         {
             Request request = new Request.Builder()
-                    .url(BASE_URL + "update.php?user_id=" + id + "&user_key=" + key)
+                    .url(BASE_URL + "updateFCMToken.php?user_id=" + id + "&user_key=" + key)
                     .build();
 
             client.newCall(request).enqueue(new Callback() {
@@ -280,6 +282,12 @@ public class ServerCommunication
                         SCNSettings.inst().save();
 
                         SCNApp.refreshAccountTab();
+
+                        if (json_int(json, "unack_count")>0)
+                        {
+                            ServerCommunication.requery(id, key, loader);
+                        }
+
                     } catch (Exception e) {
                         Log.e("SC:info", e.toString());
                         SCNApp.showToast("Communication with server failed", 4000);
@@ -298,6 +306,89 @@ public class ServerCommunication
         }
     }
 
+    public static void requery(int id, String key, View loader)
+    {
+        try
+        {
+            Request request = new Request.Builder()
+                    .url(BASE_URL + "requery.php?user_id=" + id + "&user_key=" + key)
+                    .build();
+
+            client.newCall(request).enqueue(new Callback() {
+                @Override
+                public void onFailure(Call call, IOException e) {
+                    Log.e("SC:requery", e.toString());
+                    SCNApp.showToast("Communication with server failed", 4000);
+                    SCNApp.runOnUiThread(() -> {
+                        if (loader != null) loader.setVisibility(View.GONE);
+                    });
+                }
+
+                @Override
+                public void onResponse(Call call, Response response) {
+                    try (ResponseBody responseBody = response.body()) {
+                        if (!response.isSuccessful())
+                            throw new IOException("Unexpected code " + response);
+                        if (responseBody == null) throw new IOException("No response");
+
+                        String r = responseBody.string();
+                        Log.d("Server::Response", r);
+
+                        JSONObject json = (JSONObject) new JSONTokener(r).nextValue();
+
+                        if (!json_bool(json, "success"))
+                        {
+                            SCNApp.showToast(json_str(json, "message"), 4000);
+                            return;
+                        }
+
+                        int count = json_int(json, "count");
+                        JSONArray arr = json.getJSONArray("data");
+                        for (int i = 0; i < count; i++)
+                        {
+                            JSONObject o = arr.getJSONObject(0);
+
+                            long time         = json_lng(o, "timestamp");
+                            String title      = json_str(o, "title");
+                            String content    = json_str(o, "body");
+                            PriorityEnum prio = PriorityEnum.parseAPI(json_int(o, "priority"));
+                            long scn_id       = json_lng(o, "scn_msg_id");
+
+                            FBMService.recieveData(time, title, content, prio, scn_id, true);
+                        }
+
+                        SCNSettings.inst().user_id        = json_int(json, "user_id");
+                        SCNSettings.inst().quota_curr     = json_int(json, "quota");
+                        SCNSettings.inst().quota_max      = json_int(json, "quota_max");
+                        SCNSettings.inst().promode_server = json_bool(json, "is_pro");
+                        if (!json_bool(json, "fcm_token_set")) SCNSettings.inst().fcm_token_server = "";
+                        SCNSettings.inst().save();
+
+                        SCNApp.refreshAccountTab();
+
+                        if (json_int(json, "unack_count")>0)
+                        {
+                            ServerCommunication.requery(id, key, loader);
+                        }
+
+                    } catch (Exception e) {
+                        Log.e("SC:info", e.toString());
+                        SCNApp.showToast("Communication with server failed", 4000);
+                    } finally {
+                        SCNApp.runOnUiThread(() -> {
+                            if (loader != null) loader.setVisibility(View.GONE);
+                        });
+                    }
+                }
+            });
+        }
+        catch (Exception e)
+        {
+            Log.e("SC:requery", e.toString());
+            SCNApp.showToast("Communication with server failed", 4000);
+        }
+    }
+
     public static void upgrade(int id, String key, View loader, boolean pro, String pro_token)
     {
         try
@@ -370,8 +461,24 @@ public class ServerCommunication
                 }
 
                 @Override
-                public void onResponse(Call call, Response response) {
-                    // ????
+                public void onResponse(Call call, Response response)
+                {
+                    try (ResponseBody responseBody = response.body()) {
+                        if (!response.isSuccessful())
+                            throw new IOException("Unexpected code " + response);
+                        if (responseBody == null) throw new IOException("No response");
+
+                        String r = responseBody.string();
+                        Log.d("Server::Response", r);
+
+                        JSONObject json = (JSONObject) new JSONTokener(r).nextValue();
+
+                        if (!json_bool(json, "success")) SCNApp.showToast(json_str(json, "message"), 4000);
+
+                    } catch (Exception e) {
+                        Log.e("SC:ack", e.toString());
+                        SCNApp.showToast("Communication with server failed", 4000);
+                    }
                 }
             });
         }
@@ -396,6 +503,11 @@ public class ServerCommunication
         return o.getInt(key);
     }
 
+    private static long json_lng(JSONObject o, String key) throws JSONException
+    {
+        return o.getLong(key);
+    }
+
     private static String json_str(JSONObject o, String key) throws JSONException
     {
         return o.getString(key);

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/service/BroadcastReceiverService.java

@@ -0,0 +1,42 @@
+package com.blackforestbytes.simplecloudnotifier.service;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+
+import com.blackforestbytes.simplecloudnotifier.view.MainActivity;
+
+public class BroadcastReceiverService extends BroadcastReceiver
+{
+    public static final int NOTIF_SHOW_MAIN  = 10021;
+    public static final int NOTIF_STOP_SOUND = 10022;
+    public static final String ID_KEY = "com.blackforestbytes.simplecloudnotifier.BroadcastID";
+
+    @Override
+    public void onReceive(Context context, Intent intent)
+    {
+        if (intent == null) return;
+        Bundle extras = intent.getExtras();
+        if (extras == null) return;
+        int notificationId = extras.getInt(ID_KEY, 0);
+
+        if (notificationId == 0) return;
+        else if (notificationId == NOTIF_SHOW_MAIN) showMain(context);
+        else if (notificationId == NOTIF_STOP_SOUND) stopNotificationSound();
+        else return;
+    }
+
+    private void stopNotificationSound()
+    {
+        SoundService.stop();
+    }
+
+    private void showMain(Context ctxt)
+    {
+        SoundService.stop();
+
+        Intent intent = new Intent(ctxt, MainActivity.class);
+        ctxt.startActivity(intent);
+    }
+}

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/service/FBMService.java

@@ -39,18 +39,7 @@ public class FBMService extends FirebaseMessagingService
             PriorityEnum prio = PriorityEnum.parseAPI(remoteMessage.getData().get("priority"));
             long scn_id       = Long.parseLong(remoteMessage.getData().get("scn_msg_id"));
 
-            CMessage msg = CMessageList.inst().add(scn_id, time, title, content, prio);
-
-            if (SCNApp.isBackground())
-            {
-                NotificationService.inst().showBackground(msg);
-            }
-            else
-            {
-                NotificationService.inst().showForeground(msg);
-            }
-
-            ServerCommunication.ack(SCNSettings.inst().user_id, SCNSettings.inst().user_key, msg);
+            recieveData(time, title, content, prio, scn_id, false);
         }
         catch (Exception e)
         {
@@ -58,4 +47,27 @@ public class FBMService extends FirebaseMessagingService
             SCNApp.showToast("Recieved invalid message from server", Toast.LENGTH_LONG);
         }
     }
+
+    public static void recieveData(long time, String title, String content, PriorityEnum prio, long scn_id, boolean alwaysAck)
+    {
+        CMessage msg = CMessageList.inst().add(scn_id, time, title, content, prio);
+
+        if (CMessageList.inst().isAck(scn_id))
+        {
+            Log.w("FB::MessageReceived", "Recieved ack-ed message: " + scn_id);
+            if (alwaysAck) ServerCommunication.ack(SCNSettings.inst().user_id, SCNSettings.inst().user_key, msg);
+            return;
+        }
+
+        if (SCNApp.isBackground())
+        {
+            NotificationService.inst().showBackground(msg);
+        }
+        else
+        {
+            NotificationService.inst().showForeground(msg);
+        }
+
+        ServerCommunication.ack(SCNSettings.inst().user_id, SCNSettings.inst().user_key, msg);
+    }
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/service/NotificationService.java

@@ -6,10 +6,8 @@ import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
-import android.media.AudioAttributes;
+import android.graphics.Color;
 import android.media.AudioManager;
-import android.media.Ringtone;
-import android.media.RingtoneManager;
 import android.net.Uri;
 import android.os.Build;
 import android.os.VibrationEffect;
@@ -18,17 +16,21 @@ import android.widget.Toast;
 
 import com.blackforestbytes.simplecloudnotifier.R;
 import com.blackforestbytes.simplecloudnotifier.SCNApp;
+import com.blackforestbytes.simplecloudnotifier.lib.string.Str;
 import com.blackforestbytes.simplecloudnotifier.model.CMessage;
 import com.blackforestbytes.simplecloudnotifier.model.NotificationSettings;
 import com.blackforestbytes.simplecloudnotifier.model.PriorityEnum;
 import com.blackforestbytes.simplecloudnotifier.model.SCNSettings;
 import com.blackforestbytes.simplecloudnotifier.view.MainActivity;
 
+import androidx.annotation.RequiresApi;
 import androidx.core.app.NotificationCompat;
 
 public class NotificationService
 {
-    private final static String CHANNEL_ID  = "CHAN_BFB_SCN_MESSAGES";
+    private final static String CHANNEL_P0_ID  = "CHAN_BFB_SCN_MESSAGES_P0";
+    private final static String CHANNEL_P1_ID  = "CHAN_BFB_SCN_MESSAGES_P1";
+    private final static String CHANNEL_P2_ID  = "CHAN_BFB_SCN_MESSAGES_P2";
 
     private final static Object _lock = new Object();
     private static NotificationService _inst = null;
@@ -43,10 +45,10 @@ public class NotificationService
 
     private NotificationService()
     {
-        updateChannels();
+        createChannels();
     }
 
-    public void updateChannels()
+    private void createChannels()
     {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
 
@@ -54,14 +56,41 @@ public class NotificationService
         NotificationManager notifman = ctxt.getSystemService(NotificationManager.class);
         if (notifman == null) return;
 
-        NotificationChannel channel  = notifman.getNotificationChannel(CHANNEL_ID);
-        if (channel == null)
         {
-            channel = new NotificationChannel(CHANNEL_ID, "Push notifications", NotificationManager.IMPORTANCE_DEFAULT);
-            channel.setDescription("Push notifications from the server");
-            channel.setSound(null, null);
-            channel.setVibrationPattern(null);
-            notifman.createNotificationChannel(channel);
+            NotificationChannel channel0  = notifman.getNotificationChannel(CHANNEL_P0_ID);
+            if (channel0 == null)
+            {
+                channel0 = new NotificationChannel(CHANNEL_P0_ID, "Push notifications (low priority)", NotificationManager.IMPORTANCE_DEFAULT);
+                channel0.setDescription("Push notifications from the server with low priority.\nGo to the in-app settings to configure ringtone, volume and vibrations");
+                channel0.setSound(null, null);
+                channel0.setVibrationPattern(null);
+                channel0.setLightColor(Color.BLUE);
+                notifman.createNotificationChannel(channel0);
+            }
+        }
+        {
+            NotificationChannel channel1  = notifman.getNotificationChannel(CHANNEL_P1_ID);
+            if (channel1 == null)
+            {
+                channel1 = new NotificationChannel(CHANNEL_P1_ID, "Push notifications (normal priority)", NotificationManager.IMPORTANCE_DEFAULT);
+                channel1.setDescription("Push notifications from the server with low priority.\nGo to the in-app settings to configure ringtone, volume and vibrations");
+                channel1.setSound(null, null);
+                channel1.setVibrationPattern(null);
+                channel1.setLightColor(Color.BLUE);
+                notifman.createNotificationChannel(channel1);
+            }
+        }
+        {
+            NotificationChannel channel2  = notifman.getNotificationChannel(CHANNEL_P2_ID);
+            if (channel2 == null)
+            {
+                channel2 = new NotificationChannel(CHANNEL_P1_ID, "Push notifications (high priority)", NotificationManager.IMPORTANCE_DEFAULT);
+                channel2.setDescription("Push notifications from the server with low priority.\nGo to the in-app settings to configure ringtone, volume and vibrations");
+                channel2.setSound(null, null);
+                channel2.setVibrationPattern(null);
+                channel2.setLightColor(Color.BLUE);
+                notifman.createNotificationChannel(channel2);
+            }
         }
     }
 
@@ -79,13 +108,7 @@ public class NotificationService
                 case HIGH:   ns = SCNSettings.inst().PriorityHigh; break;
             }
 
-            if (ns.EnableSound && !ns.SoundSource.isEmpty())
-            {
-                Ringtone rt = RingtoneManager.getRingtone(SCNApp.getContext(), Uri.parse(ns.SoundSource));
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) rt.setLooping(false);
-                rt.play();
-                new Thread(() -> { try { Thread.sleep(5*1000); } catch (InterruptedException e) { /* */ } rt.stop(); }).start();
-            }
+            SoundService.play(ns.EnableSound, ns.SoundSource, ns.ForceVolume, ns.ForceVolumeValue, false);
 
             if (ns.EnableVibration)
             {
@@ -118,75 +141,116 @@ public class NotificationService
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O)
         {
             // old
-
-            NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(ctxt, CHANNEL_ID);
-            mBuilder.setSmallIcon(R.drawable.ic_bfb);
-            mBuilder.setContentTitle(msg.Title);
-            mBuilder.setContentText(msg.Content);
-            mBuilder.setShowWhen(true);
-            mBuilder.setWhen(msg.Timestamp * 1000);
-            mBuilder.setAutoCancel(true);
-
-            if (msg.Priority == PriorityEnum.LOW)    mBuilder.setPriority(NotificationCompat.PRIORITY_LOW);
-            if (msg.Priority == PriorityEnum.NORMAL) mBuilder.setPriority(NotificationCompat.PRIORITY_DEFAULT);
-            if (msg.Priority == PriorityEnum.HIGH)   mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH);
-            if (ns.EnableVibration) mBuilder.setVibrate(new long[]{500});
-            if (ns.EnableLED) mBuilder.setLights(ns.LEDColor, 500, 500);
-
-            if (ns.EnableSound && !ns.SoundSource.isEmpty()) mBuilder.setSound(Uri.parse(ns.SoundSource), AudioManager.STREAM_NOTIFICATION);
-
-            Intent intent = new Intent(ctxt, MainActivity.class);
-            PendingIntent pi = PendingIntent.getActivity(ctxt, 0, intent, 0);
-            mBuilder.setContentIntent(pi);
-            NotificationManager mNotificationManager = (NotificationManager) ctxt.getSystemService(Context.NOTIFICATION_SERVICE);
-
-            Notification n = mBuilder.build();
-            if (ns.EnableSound && !ns.SoundSource.isEmpty() && ns.RepeatSound) n.flags |= Notification.FLAG_INSISTENT;
-
-            if (mNotificationManager != null) mNotificationManager.notify(0, n);
+            showBackground_old(msg, ctxt, ns, msg.Priority);
         }
         else
         {
             // new
-
-            NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(ctxt, CHANNEL_ID);
-            mBuilder.setSmallIcon(R.drawable.ic_bfb);
-            mBuilder.setContentTitle(msg.Title);
-            mBuilder.setContentText(msg.Content);
-            mBuilder.setShowWhen(true);
-            mBuilder.setWhen(msg.Timestamp * 1000);
-            mBuilder.setAutoCancel(true);
-            
-            if (ns.EnableLED) mBuilder.setLights(ns.LEDColor, 500, 500);
-
-            if (msg.Priority == PriorityEnum.LOW)    mBuilder.setPriority(NotificationCompat.PRIORITY_LOW);
-            if (msg.Priority == PriorityEnum.NORMAL) mBuilder.setPriority(NotificationCompat.PRIORITY_DEFAULT);
-            if (msg.Priority == PriorityEnum.HIGH)   mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH);
-
-            Intent intent = new Intent(ctxt, MainActivity.class);
-            PendingIntent pi = PendingIntent.getActivity(ctxt, 0, intent, 0);
-            mBuilder.setContentIntent(pi);
-            NotificationManager mNotificationManager = (NotificationManager) ctxt.getSystemService(Context.NOTIFICATION_SERVICE);
-            if (mNotificationManager == null) return;
-
-            Notification n = mBuilder.build();
-            n.flags |= Notification.FLAG_AUTO_CANCEL;
-
-            mNotificationManager.notify(0, n);
-
-            if (ns.EnableSound && !ns.SoundSource.isEmpty())
-            {
-                Ringtone rt = RingtoneManager.getRingtone(SCNApp.getContext(), Uri.parse(ns.SoundSource));
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) rt.setLooping(false);
-                rt.play();
-                new Thread(() -> { try { Thread.sleep(5*1000); } catch (InterruptedException e) { /* */ } rt.stop(); }).start();
-            }
-
-            if (ns.EnableVibration)
-            {
-                Vibrator v = (Vibrator) SCNApp.getContext().getSystemService(Context.VIBRATOR_SERVICE);
-                v.vibrate(VibrationEffect.createOneShot(1500, VibrationEffect.DEFAULT_AMPLITUDE));
-            }
+            showBackground_new(msg, ctxt, ns, msg.Priority);
         }
     }
+
+    private String getChannel(PriorityEnum p)
+    {
+        switch (p)
+        {
+            case LOW:    return CHANNEL_P0_ID;
+            case NORMAL: return CHANNEL_P1_ID;
+            case HIGH:   return CHANNEL_P2_ID;
+
+            default:     return CHANNEL_P0_ID;
+        }
+    }
+
+    private void showBackground_old(CMessage msg, Context ctxt, NotificationSettings ns, PriorityEnum prio)
+    {
+        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(ctxt, getChannel(prio));
+        mBuilder.setSmallIcon(R.drawable.ic_bfb);
+        mBuilder.setContentTitle(msg.Title);
+        mBuilder.setContentText(msg.Content);
+        mBuilder.setShowWhen(true);
+        mBuilder.setWhen(msg.Timestamp * 1000);
+        mBuilder.setAutoCancel(true);
+
+        if (msg.Priority == PriorityEnum.LOW)    mBuilder.setPriority(NotificationCompat.PRIORITY_LOW);
+        if (msg.Priority == PriorityEnum.NORMAL) mBuilder.setPriority(NotificationCompat.PRIORITY_DEFAULT);
+        if (msg.Priority == PriorityEnum.HIGH)   mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH);
+        if (ns.EnableVibration) mBuilder.setVibrate(new long[]{500});
+        if (ns.EnableLED) mBuilder.setLights(ns.LEDColor, 500, 500);
+
+        if (ns.EnableSound && !ns.SoundSource.isEmpty() && !ns.RepeatSound) mBuilder.setSound(Uri.parse(ns.SoundSource), AudioManager.STREAM_NOTIFICATION);
+
+        Intent intent = new Intent(ctxt, MainActivity.class);
+        PendingIntent pi = PendingIntent.getActivity(ctxt, 0, intent, 0);
+        mBuilder.setContentIntent(pi);
+        NotificationManager mNotificationManager = (NotificationManager) ctxt.getSystemService(Context.NOTIFICATION_SERVICE);
+
+        if (ns.EnableSound && !ns.SoundSource.isEmpty() && ns.RepeatSound)
+        {
+            Intent intnt_stop = new Intent(SCNApp.getContext(), BroadcastReceiverService.class);
+            intnt_stop.putExtra(BroadcastReceiverService.ID_KEY, BroadcastReceiverService.NOTIF_STOP_SOUND);
+            PendingIntent pi_stop = PendingIntent.getBroadcast(SCNApp.getContext().getApplicationContext(), BroadcastReceiverService.NOTIF_STOP_SOUND, intnt_stop, 0);
+            mBuilder.addAction(new NotificationCompat.Action(-1, "Stop", pi_stop));
+            mBuilder.setDeleteIntent(pi_stop);
+
+            SoundService.play(ns.EnableSound, ns.SoundSource, ns.ForceVolume, ns.ForceVolumeValue, ns.RepeatSound);
+        }
+
+        Notification n = mBuilder.build();
+
+        if (mNotificationManager != null) mNotificationManager.notify(0, n);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    private void showBackground_new(CMessage msg, Context ctxt, NotificationSettings ns, PriorityEnum prio)
+    {
+        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(ctxt, getChannel(prio));
+        mBuilder.setSmallIcon(R.drawable.ic_bfb);
+        mBuilder.setContentTitle(msg.Title);
+        mBuilder.setContentText(msg.Content);
+        mBuilder.setShowWhen(true);
+        mBuilder.setWhen(msg.Timestamp * 1000);
+        mBuilder.setAutoCancel(true);
+
+        if (ns.EnableLED) mBuilder.setLights(ns.LEDColor, 500, 500);
+
+        if (msg.Priority == PriorityEnum.LOW)    mBuilder.setPriority(NotificationCompat.PRIORITY_LOW);
+        if (msg.Priority == PriorityEnum.NORMAL) mBuilder.setPriority(NotificationCompat.PRIORITY_DEFAULT);
+        if (msg.Priority == PriorityEnum.HIGH)   mBuilder.setPriority(NotificationCompat.PRIORITY_HIGH);
+
+        Intent intnt_click = new Intent(SCNApp.getContext(), BroadcastReceiverService.class);
+        intnt_click.putExtra(BroadcastReceiverService.ID_KEY, BroadcastReceiverService.NOTIF_SHOW_MAIN);
+        PendingIntent pi = PendingIntent.getBroadcast(ctxt, 0, intnt_click, 0);
+        mBuilder.setContentIntent(pi);
+        NotificationManager mNotificationManager = (NotificationManager) ctxt.getSystemService(Context.NOTIFICATION_SERVICE);
+        if (mNotificationManager == null) return;
+
+        if (ns.EnableSound && !Str.isNullOrWhitespace(ns.SoundSource))
+        {
+            if (ns.RepeatSound)
+            {
+                Intent intnt_stop = new Intent(SCNApp.getContext(), BroadcastReceiverService.class);
+                intnt_stop.putExtra(BroadcastReceiverService.ID_KEY, BroadcastReceiverService.NOTIF_STOP_SOUND);
+                PendingIntent pi_stop = PendingIntent.getBroadcast(ctxt, BroadcastReceiverService.NOTIF_STOP_SOUND, intnt_stop, 0);
+                mBuilder.addAction(new NotificationCompat.Action(-1, "Stop", pi_stop));
+                mBuilder.setDeleteIntent(pi_stop);
+            }
+
+            SoundService.play(ns.EnableSound, ns.SoundSource, ns.ForceVolume, ns.ForceVolumeValue, ns.RepeatSound);
+        }
+
+        Notification n = mBuilder.build();
+        n.flags |= Notification.FLAG_AUTO_CANCEL;
+
+        mNotificationManager.notify(0, n);
+
+        if (ns.EnableVibration)
+        {
+            Vibrator v = (Vibrator) SCNApp.getContext().getSystemService(Context.VIBRATOR_SERVICE);
+            v.vibrate(VibrationEffect.createOneShot(1500, VibrationEffect.DEFAULT_AMPLITUDE));
+        }
+
+        //if (ns.EnableLED) {  } // no LED in Android-O -- configure via Channel
+    }
+
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/service/SoundService.java

@@ -0,0 +1,56 @@
+package com.blackforestbytes.simplecloudnotifier.service;
+
+import android.content.Context;
+import android.media.AudioAttributes;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.net.Uri;
+import android.util.Log;
+
+import com.blackforestbytes.simplecloudnotifier.SCNApp;
+import com.blackforestbytes.simplecloudnotifier.lib.string.Str;
+
+import java.io.IOException;
+
+public class SoundService
+{
+    private static MediaPlayer mpLast = null;
+
+    public static void play(boolean enableSound, String soundSource, boolean forceVolume, int forceVolumeValue, boolean loop)
+    {
+        if (!enableSound) return;
+        if (Str.isNullOrWhitespace(soundSource)) return;
+
+        stop();
+
+        if (forceVolume)
+        {
+            AudioManager aman = (AudioManager) SCNApp.getContext().getSystemService(Context.AUDIO_SERVICE);
+            int maxVolume = aman.getStreamMaxVolume(AudioManager.STREAM_NOTIFICATION);
+            aman.setStreamVolume(AudioManager.STREAM_NOTIFICATION, (int)(maxVolume * (forceVolumeValue / 100.0)), 0);
+        }
+
+        try
+        {
+            MediaPlayer player = new MediaPlayer();
+            player.setAudioAttributes(new AudioAttributes.Builder().setLegacyStreamType(AudioManager.STREAM_NOTIFICATION).build());
+            player.setAudioStreamType(AudioManager.STREAM_NOTIFICATION);
+            player.setDataSource(SCNApp.getContext(), Uri.parse(soundSource));
+            player.setLooping(loop);
+            player.setOnCompletionListener(  mp -> { mp.stop(); mp.release(); });
+            player.setOnSeekCompleteListener(mp -> { mp.stop(); mp.release(); });
+            player.prepare();
+            player.start();
+            mpLast = player;
+        }
+        catch (IOException e)
+        {
+            Log.e("Sound::play", e.toString());
+        }
+    }
+
+    public static void stop()
+    {
+        if (mpLast != null && mpLast.isPlaying()) { mpLast.stop(); mpLast.release(); mpLast = null; }
+    }
+}

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/util/MessageAdapterTouchHelper.java

@@ -0,0 +1,77 @@
+package com.blackforestbytes.simplecloudnotifier.util;
+
+import android.graphics.Canvas;
+import android.view.View;
+
+import com.blackforestbytes.simplecloudnotifier.view.MessageAdapter;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
+
+public class MessageAdapterTouchHelper extends ItemTouchHelper.SimpleCallback
+{
+    private MessageAdapterTouchHelperListener listener;
+
+    public MessageAdapterTouchHelper(int dragDirs, int swipeDirs, MessageAdapterTouchHelperListener listener)
+    {
+        super(dragDirs, swipeDirs);
+        this.listener = listener;
+    }
+
+    @Override
+    public boolean onMove(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, @NonNull RecyclerView.ViewHolder target)
+    {
+        return true;
+    }
+
+    @Override
+    public void onSelectedChanged(RecyclerView.ViewHolder viewHolder, int actionState)
+    {
+        if (viewHolder != null)
+        {
+            final View foregroundView = ((MessageAdapter.MessagePresenter) viewHolder).viewForeground;
+
+            getDefaultUIUtil().onSelected(foregroundView);
+        }
+    }
+
+    @Override
+    public void onChildDrawOver(@NonNull Canvas c, @NonNull RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive)
+    {
+        final View foregroundView = ((MessageAdapter.MessagePresenter) viewHolder).viewForeground;
+        getDefaultUIUtil().onDrawOver(c, recyclerView, foregroundView, dX, dY, actionState, isCurrentlyActive);
+    }
+
+    @Override
+    public void clearView(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder)
+    {
+        final View foregroundView = ((MessageAdapter.MessagePresenter) viewHolder).viewForeground;
+        getDefaultUIUtil().clearView(foregroundView);
+    }
+
+    @Override
+    public void onChildDraw(@NonNull Canvas c, @NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive)
+    {
+        final View foregroundView = ((MessageAdapter.MessagePresenter) viewHolder).viewForeground;
+
+        getDefaultUIUtil().onDraw(c, recyclerView, foregroundView, dX, dY, actionState, isCurrentlyActive);
+    }
+
+    @Override
+    public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int direction)
+    {
+        listener.onSwiped(viewHolder, direction, viewHolder.getAdapterPosition());
+    }
+
+    @Override
+    public int convertToAbsoluteDirection(int flags, int layoutDirection)
+    {
+        return super.convertToAbsoluteDirection(flags, layoutDirection);
+    }
+
+    public interface MessageAdapterTouchHelperListener
+    {
+        void onSwiped(RecyclerView.ViewHolder viewHolder, int direction, int position);
+    }
+}

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/MainActivity.java

@@ -1,6 +1,7 @@
 package com.blackforestbytes.simplecloudnotifier.view;
 
 import android.os.Bundle;
+import android.widget.RelativeLayout;
 
 import com.blackforestbytes.simplecloudnotifier.R;
 import com.blackforestbytes.simplecloudnotifier.SCNApp;
@@ -18,6 +19,7 @@ import androidx.viewpager.widget.ViewPager;
 public class MainActivity extends AppCompatActivity
 {
     public TabAdapter adpTabs;
+    public RelativeLayout layoutRoot;
 
     @Override
     protected void onCreate(Bundle savedInstanceState)
@@ -28,6 +30,8 @@ public class MainActivity extends AppCompatActivity
         NotificationService.inst();
         CMessageList.inst();
 
+        layoutRoot = findViewById(R.id.layoutRoot);
+
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
@@ -39,6 +43,22 @@ public class MainActivity extends AppCompatActivity
         tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
         tabLayout.setupWithViewPager(viewPager);
 
+        viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
+            @Override
+            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { /* */ }
+
+            @Override
+            public void onPageSelected(int position)
+            {
+                if (position != 2) adpTabs.tab3.onViewpagerHide();
+            }
+
+            @Override
+            public void onPageScrollStateChanged(int state) {
+
+            }
+        });
+
         SCNApp.register(this);
         IABService.startup(this);
         SCNSettings.inst().work(this);

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/MessageAdapter.java

@@ -4,22 +4,36 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
+import android.widget.RelativeLayout;
 import android.widget.TextView;
 
 import com.blackforestbytes.simplecloudnotifier.R;
 import com.blackforestbytes.simplecloudnotifier.model.CMessage;
 import com.blackforestbytes.simplecloudnotifier.model.CMessageList;
 
+import java.lang.ref.WeakReference;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.WeakHashMap;
+
 import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 public class MessageAdapter extends RecyclerView.Adapter
 {
     private final View vNoElements;
+    private final LinearLayoutManager manLayout;
+    private final RecyclerView viewRecycler;
 
-    public MessageAdapter(View noElementsView)
+    private WeakHashMap<MessagePresenter, Boolean> viewHolders = new WeakHashMap<>();
+
+    public MessageAdapter(View noElementsView, LinearLayoutManager layout, RecyclerView recycler)
     {
-        vNoElements = noElementsView;
+        vNoElements  = noElementsView;
+        manLayout    = layout;
+        viewRecycler = recycler;
         CMessageList.inst().register(this);
 
         vNoElements.setVisibility(getItemCount()>0 ? View.GONE : View.VISIBLE);
@@ -36,9 +50,18 @@ public class MessageAdapter extends RecyclerView.Adapter
     @Override
     public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position)
     {
-        CMessage msg = CMessageList.inst().tryGet(position);
+        CMessage msg = CMessageList.inst().tryGetFromBack(position);
         MessagePresenter view = (MessagePresenter) holder;
         view.setMessage(msg);
+
+        viewHolders.put(view, true);
+    }
+
+
+    @Override
+    public void onViewRecycled(@NonNull RecyclerView.ViewHolder holder)
+    {
+        if (holder instanceof MessagePresenter) viewHolders.remove(holder);
     }
 
     @Override
@@ -59,23 +82,51 @@ public class MessageAdapter extends RecyclerView.Adapter
         vNoElements.setVisibility(getItemCount()>0 ? View.GONE : View.VISIBLE);
     }
 
-    private class MessagePresenter extends RecyclerView.ViewHolder implements View.OnClickListener
+    public void scrollToTop()
+    {
+        manLayout.smoothScrollToPosition(viewRecycler, null, 0);
+    }
+
+    public void removeItem(int position)
+    {
+        CMessageList.inst().remove(position);
+        notifyItemRemoved(position);
+    }
+
+    public void restoreItem(CMessage item, int position)
+    {
+        CMessageList.inst().insert(position, item);
+        notifyItemInserted(position);
+    }
+
+    public class MessagePresenter extends RecyclerView.ViewHolder implements View.OnClickListener
     {
         private TextView tvTimestamp;
         private TextView tvTitle;
         private TextView tvMessage;
         private ImageView ivPriority;
 
+        public RelativeLayout viewForeground;
+        public RelativeLayout viewBackground;
+
         private CMessage data;
 
         MessagePresenter(View itemView)
         {
             super(itemView);
-            tvTimestamp = itemView.findViewById(R.id.tvTimestamp);
-            tvTitle     = itemView.findViewById(R.id.tvTitle);
-            tvMessage   = itemView.findViewById(R.id.tvMessage);
-            ivPriority  = itemView.findViewById(R.id.ivPriority);
+            tvTimestamp    = itemView.findViewById(R.id.tvTimestamp);
+            tvTitle        = itemView.findViewById(R.id.tvTitle);
+            tvMessage      = itemView.findViewById(R.id.tvMessage);
+            ivPriority     = itemView.findViewById(R.id.ivPriority);
+            viewForeground = itemView.findViewById(R.id.layoutFront);
+            viewBackground = itemView.findViewById(R.id.layoutBack);
+
             itemView.setOnClickListener(this);
+            tvTimestamp.setOnClickListener(this);
+            tvTitle.setOnClickListener(this);
+            tvMessage.setOnClickListener(this);
+            ivPriority.setOnClickListener(this);
+            viewForeground.setOnClickListener(this);
         }
 
         void setMessage(CMessage msg)
@@ -105,7 +156,16 @@ public class MessageAdapter extends RecyclerView.Adapter
         @Override
         public void onClick(View v)
         {
-            //SCNApp.showToast(data.Title, Toast.LENGTH_LONG);
+            for (MessagePresenter holder : MessageAdapter.this.viewHolders.keySet())
+            {
+                if (holder == null) continue;
+                if (holder == this) continue;
+                if (holder.tvMessage == null) continue;
+                if (holder.tvMessage.getMaxLines() == 6) continue;
+                holder.tvMessage.setMaxLines(6);
+            }
+
+            tvMessage.setMaxLines(9999);
         }
     }
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/NotificationsFragment.java

@@ -1,24 +1,32 @@
 package com.blackforestbytes.simplecloudnotifier.view;
 
+import android.graphics.Color;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
 import com.blackforestbytes.simplecloudnotifier.R;
+import com.blackforestbytes.simplecloudnotifier.SCNApp;
+import com.blackforestbytes.simplecloudnotifier.model.CMessage;
+import com.blackforestbytes.simplecloudnotifier.model.CMessageList;
 import com.blackforestbytes.simplecloudnotifier.model.SCNSettings;
 import com.blackforestbytes.simplecloudnotifier.service.IABService;
+import com.blackforestbytes.simplecloudnotifier.util.MessageAdapterTouchHelper;
 import com.google.android.gms.ads.doubleclick.PublisherAdRequest;
 import com.google.android.gms.ads.doubleclick.PublisherAdView;
+import com.google.android.material.snackbar.Snackbar;
 
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.ItemTouchHelper;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
-public class NotificationsFragment extends Fragment
+public class NotificationsFragment extends Fragment implements MessageAdapterTouchHelper.MessageAdapterTouchHelperListener
 {
     private PublisherAdView adView;
+    private MessageAdapter adpMessages;
 
     public NotificationsFragment()
     {
@@ -31,8 +39,12 @@ public class NotificationsFragment extends Fragment
         View v = inflater.inflate(R.layout.fragment_notifications, container, false);
 
         RecyclerView rvMessages = v.findViewById(R.id.rvMessages);
-        rvMessages.setLayoutManager(new LinearLayoutManager(this.getContext(), RecyclerView.VERTICAL, true));
-        rvMessages.setAdapter(new MessageAdapter(v.findViewById(R.id.tvNoElements)));
+        LinearLayoutManager lman = new LinearLayoutManager(this.getContext(), RecyclerView.VERTICAL, false);
+        rvMessages.setLayoutManager(lman);
+        rvMessages.setAdapter(adpMessages = new MessageAdapter(v.findViewById(R.id.tvNoElements), lman, rvMessages));
+
+        ItemTouchHelper.SimpleCallback itemTouchHelperCallback = new MessageAdapterTouchHelper(0, ItemTouchHelper.LEFT, this);
+        new ItemTouchHelper(itemTouchHelperCallback).attachToRecyclerView(rvMessages);
 
         adView = v.findViewById(R.id.adBanner);
         PublisherAdRequest adRequest = new PublisherAdRequest.Builder().build();
@@ -47,4 +59,23 @@ public class NotificationsFragment extends Fragment
     {
         if (adView != null) adView.setVisibility(IABService.inst().getPurchaseCached(IABService.IAB_PRO_MODE) != null ? View.GONE : View.VISIBLE);
     }
+
+    @Override
+    public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction, int position)
+    {
+        if (viewHolder instanceof MessageAdapter.MessagePresenter)
+        {
+            final CMessage deletedItem = CMessageList.inst().tryGet(viewHolder.getAdapterPosition());
+            final int deletedIndex = viewHolder.getAdapterPosition();
+
+            String name = deletedItem.Title;
+
+            adpMessages.removeItem(viewHolder.getAdapterPosition());
+
+            Snackbar snackbar = Snackbar.make(SCNApp.getMainActivity().layoutRoot, name + " removed", Snackbar.LENGTH_LONG);
+            snackbar.setAction("UNDO", view -> adpMessages.restoreItem(deletedItem, deletedIndex));
+            snackbar.setActionTextColor(Color.YELLOW);
+            snackbar.show();
+        }
+    }
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/SettingsFragment.java

@@ -1,9 +1,16 @@
 package com.blackforestbytes.simplecloudnotifier.view;
 
 import android.content.Context;
+import android.graphics.Color;
+import android.media.AudioAttributes;
 import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.media.Ringtone;
+import android.media.RingtoneManager;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -11,18 +18,24 @@ import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.ImageView;
+import android.widget.SeekBar;
 import android.widget.Spinner;
 import android.widget.Switch;
 import android.widget.TextView;
 
 import com.android.billingclient.api.Purchase;
 import com.blackforestbytes.simplecloudnotifier.R;
+import com.blackforestbytes.simplecloudnotifier.SCNApp;
+import com.blackforestbytes.simplecloudnotifier.lib.android.ThreadUtils;
+import com.blackforestbytes.simplecloudnotifier.lib.lambda.FI;
+import com.blackforestbytes.simplecloudnotifier.lib.string.Str;
 import com.blackforestbytes.simplecloudnotifier.model.SCNSettings;
 import com.blackforestbytes.simplecloudnotifier.service.IABService;
-import com.blackforestbytes.simplecloudnotifier.service.NotificationService;
 
 import org.jetbrains.annotations.NotNull;
 
+import java.io.IOException;
+
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import top.defaults.colorpicker.ColorPickerPopup;
@@ -45,6 +58,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
     private View      prefMsgLowLedColor_container;
     private ImageView prefMsgLowLedColor_value;
     private Switch    prefMsgLowEnableVibrations;
+    private Switch    prefMsgLowForceVolume;
+    private SeekBar   prefMsgLowVolume;
+    private ImageView prefMsgLowVolumeTest;
 
     private Switch    prefMsgNormEnableSound;
     private TextView  prefMsgNormRingtone_value;
@@ -54,6 +70,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
     private View      prefMsgNormLedColor_container;
     private ImageView prefMsgNormLedColor_value;
     private Switch    prefMsgNormEnableVibrations;
+    private Switch    prefMsgNormForceVolume;
+    private SeekBar   prefMsgNormVolume;
+    private ImageView prefMsgNormVolumeTest;
 
     private Switch    prefMsgHighEnableSound;
     private TextView  prefMsgHighRingtone_value;
@@ -63,9 +82,14 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
     private View      prefMsgHighLedColor_container;
     private ImageView prefMsgHighLedColor_value;
     private Switch    prefMsgHighEnableVibrations;
+    private Switch    prefMsgHighForceVolume;
+    private SeekBar   prefMsgHighVolume;
+    private ImageView prefMsgHighVolumeTest;
 
     private int musicPickerSwitch = -1;
 
+    private MediaPlayer[] mPlayers = new MediaPlayer[3];
+
     public SettingsFragment()
     {
         // Required empty public constructor
@@ -99,6 +123,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgLowLedColor_value      = v.findViewById(R.id.prefMsgLowLedColor_value);
         prefMsgLowLedColor_container  = v.findViewById(R.id.prefMsgLowLedColor_container);
         prefMsgLowEnableVibrations    = v.findViewById(R.id.prefMsgLowEnableVibrations);
+        prefMsgLowForceVolume         = v.findViewById(R.id.prefMsgLowForceVolume);
+        prefMsgLowVolume              = v.findViewById(R.id.prefMsgLowVolume);
+        prefMsgLowVolumeTest          = v.findViewById(R.id.btnLowVolumeTest);
 
         prefMsgNormEnableSound        = v.findViewById(R.id.prefMsgNormEnableSound);
         prefMsgNormRingtone_value     = v.findViewById(R.id.prefMsgNormRingtone_value);
@@ -108,6 +135,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgNormLedColor_value     = v.findViewById(R.id.prefMsgNormLedColor_value);
         prefMsgNormLedColor_container = v.findViewById(R.id.prefMsgNormLedColor_container);
         prefMsgNormEnableVibrations   = v.findViewById(R.id.prefMsgNormEnableVibrations);
+        prefMsgNormForceVolume         = v.findViewById(R.id.prefMsgNormForceVolume);
+        prefMsgNormVolume              = v.findViewById(R.id.prefMsgNormVolume);
+        prefMsgNormVolumeTest          = v.findViewById(R.id.btnNormVolumeTest);
 
         prefMsgHighEnableSound        = v.findViewById(R.id.prefMsgHighEnableSound);
         prefMsgHighRingtone_value     = v.findViewById(R.id.prefMsgHighRingtone_value);
@@ -117,6 +147,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgHighLedColor_value     = v.findViewById(R.id.prefMsgHighLedColor_value);
         prefMsgHighLedColor_container = v.findViewById(R.id.prefMsgHighLedColor_container);
         prefMsgHighEnableVibrations   = v.findViewById(R.id.prefMsgHighEnableVibrations);
+        prefMsgHighForceVolume         = v.findViewById(R.id.prefMsgHighForceVolume);
+        prefMsgHighVolume              = v.findViewById(R.id.prefMsgHighVolume);
+        prefMsgHighVolumeTest          = v.findViewById(R.id.btnHighVolumeTest);
     }
 
     private void updateUI()
@@ -142,6 +175,12 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         if (prefMsgLowEnableLED.isChecked() != s.PriorityLow.EnableLED) prefMsgLowEnableLED.setChecked(s.PriorityLow.EnableLED);
         prefMsgLowLedColor_value.setColorFilter(s.PriorityLow.LEDColor);
         if (prefMsgLowEnableVibrations.isChecked() != s.PriorityLow.EnableVibration) prefMsgLowEnableVibrations.setChecked(s.PriorityLow.EnableVibration);
+        if (prefMsgLowForceVolume.isChecked() != s.PriorityLow.ForceVolume) prefMsgLowForceVolume.setChecked(s.PriorityLow.ForceVolume);
+        if (prefMsgLowVolume.getMax() != 100) prefMsgLowVolume.setMax(100);
+        if (prefMsgLowVolume.getProgress() != s.PriorityLow.ForceVolumeValue) prefMsgLowVolume.setProgress(s.PriorityLow.ForceVolumeValue);
+        if (prefMsgLowVolume.isEnabled() != s.PriorityLow.ForceVolume) prefMsgLowVolume.setEnabled(s.PriorityLow.ForceVolume);
+        if (prefMsgLowVolumeTest.isEnabled() != s.PriorityLow.ForceVolume) prefMsgLowVolumeTest.setEnabled(s.PriorityLow.ForceVolume);
+        if (s.PriorityLow.ForceVolume) prefMsgLowVolumeTest.setColorFilter(null); else prefMsgLowVolumeTest.setColorFilter(Color.argb(150,200,200,200));
 
         if (prefMsgNormEnableSound.isChecked() != s.PriorityNorm.EnableSound) prefMsgNormEnableSound.setChecked(s.PriorityNorm.EnableSound);
         if (!prefMsgNormRingtone_value.getText().equals(s.PriorityNorm.SoundName)) prefMsgNormRingtone_value.setText(s.PriorityNorm.SoundName);
@@ -149,6 +188,12 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         if (prefMsgNormEnableLED.isChecked() != s.PriorityNorm.EnableLED) prefMsgNormEnableLED.setChecked(s.PriorityNorm.EnableLED);
         prefMsgNormLedColor_value.setColorFilter(s.PriorityNorm.LEDColor);
         if (prefMsgNormEnableVibrations.isChecked() != s.PriorityNorm.EnableVibration) prefMsgNormEnableVibrations.setChecked(s.PriorityNorm.EnableVibration);
+        if (prefMsgNormForceVolume.isChecked() != s.PriorityNorm.ForceVolume) prefMsgNormForceVolume.setChecked(s.PriorityNorm.ForceVolume);
+        if (prefMsgNormVolume.getMax() != 100) prefMsgNormVolume.setMax(100);
+        if (prefMsgNormVolume.getProgress() != s.PriorityNorm.ForceVolumeValue) prefMsgNormVolume.setProgress(s.PriorityNorm.ForceVolumeValue);
+        if (prefMsgNormVolume.isEnabled() != s.PriorityNorm.ForceVolume) prefMsgNormVolume.setEnabled(s.PriorityNorm.ForceVolume);
+        if (prefMsgNormVolumeTest.isEnabled() != s.PriorityNorm.ForceVolume) prefMsgNormVolumeTest.setEnabled(s.PriorityNorm.ForceVolume);
+        if (s.PriorityNorm.ForceVolume) prefMsgNormVolumeTest.setColorFilter(null); else prefMsgNormVolumeTest.setColorFilter(Color.argb(150,200,200,200));
 
         if (prefMsgHighEnableSound.isChecked() != s.PriorityHigh.EnableSound) prefMsgHighEnableSound.setChecked(s.PriorityHigh.EnableSound);
         if (!prefMsgHighRingtone_value.getText().equals(s.PriorityHigh.SoundName)) prefMsgHighRingtone_value.setText(s.PriorityHigh.SoundName);
@@ -156,6 +201,12 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         if (prefMsgHighEnableLED.isChecked() != s.PriorityHigh.EnableLED) prefMsgHighEnableLED.setChecked(s.PriorityHigh.EnableLED);
         prefMsgHighLedColor_value.setColorFilter(s.PriorityHigh.LEDColor);
         if (prefMsgHighEnableVibrations.isChecked() != s.PriorityHigh.EnableVibration) prefMsgHighEnableVibrations.setChecked(s.PriorityHigh.EnableVibration);
+        if (prefMsgHighForceVolume.isChecked() != s.PriorityHigh.ForceVolume) prefMsgHighForceVolume.setChecked(s.PriorityHigh.ForceVolume);
+        if (prefMsgHighVolume.getMax() != 100) prefMsgHighVolume.setMax(100);
+        if (prefMsgHighVolume.getProgress() != s.PriorityHigh.ForceVolumeValue) prefMsgHighVolume.setProgress(s.PriorityHigh.ForceVolumeValue);
+        if (prefMsgHighVolume.isEnabled() != s.PriorityHigh.ForceVolume) prefMsgHighVolume.setEnabled(s.PriorityHigh.ForceVolume);
+        if (prefMsgHighVolumeTest.isEnabled() != s.PriorityHigh.ForceVolume) prefMsgHighVolumeTest.setEnabled(s.PriorityHigh.ForceVolume);
+        if (s.PriorityHigh.ForceVolume) prefMsgHighVolumeTest.setColorFilter(null); else prefMsgHighVolumeTest.setColorFilter(Color.argb(150,200,200,200));
     }
 
     private void initListener()
@@ -181,6 +232,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgLowEnableLED.setOnCheckedChangeListener((a,b) -> { s.PriorityLow.EnableLED=b; saveAndUpdate(); });
         prefMsgLowLedColor_container.setOnClickListener(a -> chooseLEDColorLow());
         prefMsgLowEnableVibrations.setOnCheckedChangeListener((a,b) -> { s.PriorityLow.EnableVibration=b; saveAndUpdate(); });
+        prefMsgLowForceVolume.setOnCheckedChangeListener((a,b) -> { s.PriorityLow.ForceVolume=b; saveAndUpdate(); });
+        prefMsgLowVolume.setOnSeekBarChangeListener(FI.SeekBarChanged((a,b,c) -> { if (c) { s.PriorityLow.ForceVolumeValue=b; saveAndUpdate(); updateVolume(0, b); } }));
+        prefMsgLowVolumeTest.setOnClickListener((v) -> { if (s.PriorityLow.ForceVolume) playTestSound(0, prefMsgLowVolumeTest, s.PriorityLow.SoundSource, s.PriorityLow.ForceVolumeValue); });
 
         prefMsgNormEnableSound.setOnCheckedChangeListener((a,b) -> { s.PriorityNorm.EnableSound=b; saveAndUpdate(); });
         prefMsgNormRingtone_container.setOnClickListener(a -> chooseRingtoneNorm());
@@ -188,6 +242,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgNormEnableLED.setOnCheckedChangeListener((a,b) -> { s.PriorityNorm.EnableLED=b; saveAndUpdate(); });
         prefMsgNormLedColor_container.setOnClickListener(a -> chooseLEDColorNorm());
         prefMsgNormEnableVibrations.setOnCheckedChangeListener((a,b) -> { s.PriorityNorm.EnableVibration=b; saveAndUpdate(); });
+        prefMsgNormForceVolume.setOnCheckedChangeListener((a,b) -> { s.PriorityNorm.ForceVolume=b; saveAndUpdate(); });
+        prefMsgNormVolume.setOnSeekBarChangeListener(FI.SeekBarChanged((a,b,c) -> { if (c) { s.PriorityNorm.ForceVolumeValue=b; saveAndUpdate(); updateVolume(1, b); } }));
+        prefMsgNormVolumeTest.setOnClickListener((v) -> { if (s.PriorityNorm.ForceVolume) playTestSound(1, prefMsgNormVolumeTest, s.PriorityNorm.SoundSource, s.PriorityNorm.ForceVolumeValue); });
 
         prefMsgHighEnableSound.setOnCheckedChangeListener((a,b) -> { s.PriorityHigh.EnableSound=b; saveAndUpdate(); });
         prefMsgHighRingtone_container.setOnClickListener(a -> chooseRingtoneHigh());
@@ -195,6 +252,72 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgHighEnableLED.setOnCheckedChangeListener((a,b) -> { s.PriorityHigh.EnableLED=b; saveAndUpdate(); });
         prefMsgHighLedColor_container.setOnClickListener(a -> chooseLEDColorHigh());
         prefMsgHighEnableVibrations.setOnCheckedChangeListener((a,b) -> { s.PriorityHigh.EnableVibration=b; saveAndUpdate(); });
+        prefMsgHighForceVolume.setOnCheckedChangeListener((a,b) -> { s.PriorityHigh.ForceVolume=b; saveAndUpdate(); });
+        prefMsgHighVolume.setOnSeekBarChangeListener(FI.SeekBarChanged((a,b,c) -> { if (c) { s.PriorityHigh.ForceVolumeValue=b; saveAndUpdate(); updateVolume(2, b); } }));
+        prefMsgHighVolumeTest.setOnClickListener((v) -> { if (s.PriorityHigh.ForceVolume) playTestSound(2, prefMsgHighVolumeTest, s.PriorityHigh.SoundSource, s.PriorityHigh.ForceVolumeValue); });
+    }
+
+    private void updateVolume(int idx, int volume)
+    {
+        if (mPlayers[idx] != null && mPlayers[idx].isPlaying())
+        {
+            AudioManager aman = (AudioManager) SCNApp.getContext().getSystemService(Context.AUDIO_SERVICE);
+            int maxVolume = aman.getStreamMaxVolume(AudioManager.STREAM_NOTIFICATION);
+            aman.setStreamVolume(AudioManager.STREAM_NOTIFICATION, (int)(maxVolume * (volume / 100.0)), 0);
+        }
+    }
+
+    private void stopSound(final int idx, final ImageView iv)
+    {
+        if (mPlayers[idx] != null && mPlayers[idx].isPlaying())
+        {
+            mPlayers[idx].stop();
+            mPlayers[idx].release();
+            iv.setImageResource(R.drawable.ic_play);
+            mPlayers[idx] = null;
+        }
+    }
+
+    private void playTestSound(final int idx, final ImageView iv, String src, int volume)
+    {
+        if (mPlayers[idx] != null && mPlayers[idx].isPlaying())
+        {
+            mPlayers[idx].stop();
+            mPlayers[idx].release();
+            iv.setImageResource(R.drawable.ic_play);
+            mPlayers[idx] = null;
+            return;
+        }
+
+        if (Str.isNullOrWhitespace(src)) return;
+        if (volume == 0) return;
+
+        Context ctxt = getContext();
+        if (ctxt == null) return;
+
+        iv.setImageResource(R.drawable.ic_pause);
+
+        AudioManager aman = (AudioManager) SCNApp.getContext().getSystemService(Context.AUDIO_SERVICE);
+        int maxVolume = aman.getStreamMaxVolume(AudioManager.STREAM_NOTIFICATION);
+        aman.setStreamVolume(AudioManager.STREAM_NOTIFICATION, (int)(maxVolume * (volume / 100.0)), 0);
+
+        MediaPlayer player = mPlayers[idx] = new MediaPlayer();
+        player.setAudioAttributes(new AudioAttributes.Builder().setLegacyStreamType(AudioManager.STREAM_NOTIFICATION).build());
+        player.setAudioStreamType(AudioManager.STREAM_NOTIFICATION);
+
+        try
+        {
+            player.setDataSource(ctxt, Uri.parse(src));
+            player.setLooping(false);
+            player.setOnCompletionListener(  mp -> SCNApp.runOnUiThread(() -> { mp.stop(); iv.setImageResource(R.drawable.ic_play); mPlayers[idx]=null; mp.release(); }));
+            player.setOnSeekCompleteListener(mp -> SCNApp.runOnUiThread(() -> { mp.stop(); iv.setImageResource(R.drawable.ic_play); mPlayers[idx]=null; mp.release(); }));
+            player.prepare();
+            player.start();
+        }
+        catch (IOException e)
+        {
+            Log.e("SFRAG:play", e.toString());
+        }
     }
 
     private void saveAndUpdate()
@@ -232,7 +355,7 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         UltimateMusicPicker ump = new UltimateMusicPicker();
         ump.windowTitle("Choose notification sound");
         ump.removeSilent();
-        ump.streamType(AudioManager.STREAM_ALARM);
+        ump.streamType(AudioManager.STREAM_NOTIFICATION);
         ump.ringtone();
         ump.notification();
         ump.alarm();
@@ -247,7 +370,7 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         UltimateMusicPicker ump = new UltimateMusicPicker();
         ump.windowTitle("Choose notification sound");
         ump.removeSilent();
-        ump.streamType(AudioManager.STREAM_ALARM);
+        ump.streamType(AudioManager.STREAM_NOTIFICATION);
         ump.ringtone();
         ump.notification();
         ump.alarm();
@@ -262,7 +385,7 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         UltimateMusicPicker ump = new UltimateMusicPicker();
         ump.windowTitle("Choose notification sound");
         ump.removeSilent();
-        ump.streamType(AudioManager.STREAM_ALARM);
+        ump.streamType(AudioManager.STREAM_NOTIFICATION);
         ump.ringtone();
         ump.notification();
         ump.alarm();
@@ -355,4 +478,11 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
     {
         musicPickerSwitch = -1;
     }
+
+    public void onViewpagerHide()
+    {
+        stopSound(0, prefMsgLowVolumeTest);
+        stopSound(1, prefMsgNormVolumeTest);
+        stopSound(2, prefMsgHighVolumeTest);
+    }
 }

android/app/src/main/res/drawable/ic_pause.xml

@@ -0,0 +1,16 @@
+<vector
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportHeight="438.536"
+    android:viewportWidth="438.536"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <path
+        android:fillColor="#FF3F51B5"
+        android:pathData="M164.453,0H18.276C13.324,0 9.041,1.807 5.425,5.424C1.808,9.04 0.001,13.322 0.001,18.271v401.991c0,4.948 1.807,9.233 5.424,12.847c3.619,3.617 7.902,5.428 12.851,5.428h146.181c4.949,0 9.231,-1.811 12.847,-5.428c3.617,-3.613 5.424,-7.898 5.424,-12.847V18.271c0,-4.952 -1.807,-9.231 -5.428,-12.847C173.685,1.807 169.402,0 164.453,0z"/>
+
+    <path
+        android:fillColor="#FF3F51B5"
+        android:pathData="M433.113,5.424C429.496,1.807 425.215,0 420.267,0H274.086c-4.949,0 -9.237,1.807 -12.847,5.424c-3.621,3.615 -5.432,7.898 -5.432,12.847v401.991c0,4.948 1.811,9.233 5.432,12.847c3.609,3.617 7.897,5.428 12.847,5.428h146.181c4.948,0 9.229,-1.811 12.847,-5.428c3.614,-3.613 5.421,-7.898 5.421,-12.847V18.271C438.534,13.319 436.73,9.04 433.113,5.424z"/>
+
+</vector>

android/app/src/main/res/drawable/ic_play.xml

@@ -0,0 +1,12 @@
+<vector
+    android:height="24dp"
+    android:viewportHeight="41.999"
+    android:viewportWidth="41.999"
+    android:width="24dp"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <path
+        android:fillColor="#FF3F51B5"
+        android:pathData="M36.068,20.176l-29,-20C6.761,-0.035 6.363,-0.057 6.035,0.114C5.706,0.287 5.5,0.627 5.5,0.999v40c0,0.372 0.206,0.713 0.535,0.886c0.146,0.076 0.306,0.114 0.465,0.114c0.199,0 0.397,-0.06 0.568,-0.177l29,-20c0.271,-0.187 0.432,-0.494 0.432,-0.823S36.338,20.363 36.068,20.176z"/>
+
+</vector>

android/app/src/main/res/drawable/ic_trash.xml

@@ -0,0 +1,16 @@
+<vector
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportHeight="53"
+    android:viewportWidth="53"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M42.943,6H33.5V3c0,-1.654 -1.346,-3 -3,-3h-8c-1.654,0 -3,1.346 -3,3v3h-9.443C8.096,6 6.5,7.596 6.5,9.557V14h2h36h2V9.557C46.5,7.596 44.904,6 42.943,6zM31.5,6h-10V3c0,-0.552 0.449,-1 1,-1h8c0.551,0 1,0.448 1,1V6z"/>
+
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M8.5,49.271C8.5,51.327 10.173,53 12.229,53h28.541c2.057,0 3.729,-1.673 3.729,-3.729V16h-36V49.271z"/>
+
+</vector>

android/app/src/main/res/drawable/ic_volume.xml

@@ -0,0 +1,12 @@
+<vector
+    android:height="24dp"
+    android:viewportHeight="459"
+    android:viewportWidth="459"
+    android:width="24dp"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <path
+        android:fillColor="#FF757575"
+        android:pathData="M0,153v153h102l127.5,127.5v-408L102,153H0zM344.25,229.5c0,-45.9 -25.5,-84.15 -63.75,-102v204C318.75,313.65 344.25,275.4 344.25,229.5zM280.5,5.1v53.55C354.45,81.6 408,147.899 408,229.5S354.45,377.4 280.5,400.35V453.9C382.5,430.949 459,339.15 459,229.5C459,119.85 382.5,28.049 280.5,5.1z"/>
+
+</vector>

android/app/src/main/res/layout/activity_main.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
+    android:id="@+id/layoutRoot"
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"

android/app/src/main/res/layout/fragment_settings.xml

@@ -57,7 +57,7 @@
 
                     <TextView
                         android:id="@+id/tvLocalCacheSize"
-                        android:layout_width="wrap_content"
+                        android:layout_width="0dp"
                         android:layout_height="wrap_content"
                         android:text="@string/str_localcachesize"
                         android:textColor="#000"
@@ -202,6 +202,60 @@
                     android:layout_marginEnd="4dp"
                     android:minHeight="48dp" />
 
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:layout_marginBottom="2dp"
+                    android:layout_marginTop="2dp"
+                    android:background="#c0c0c0"/>
+
+                <Switch
+                    android:id="@+id/prefMsgLowForceVolume"
+                    android:text="@string/str_forcevolume"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="4dp"
+                    android:layout_marginEnd="4dp"
+                    android:minHeight="48dp" />
+
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:columnCount="3"
+                    android:orientation="horizontal"
+                    android:layout_marginStart="4dp"
+                    android:layout_marginEnd="4dp">
+
+                    <ImageView
+                        android:id="@+id/icnLowVolume"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:contentDescription="@string/volume_icon"
+                        android:src="@drawable/ic_volume"
+                        app:layout_constraintStart_toStartOf="parent" />
+
+                    <SeekBar
+                        android:id="@+id/prefMsgLowVolume"
+                        android:layout_width="0dp"
+                        android:layout_height="match_parent"
+                        android:layout_marginStart="8dp"
+                        android:layout_marginEnd="8dp"
+                        app:layout_constraintBottom_toBottomOf="parent"
+                        app:layout_constraintEnd_toStartOf="@+id/btnLowVolumeTest"
+                        app:layout_constraintHorizontal_bias="0.5"
+                        app:layout_constraintStart_toEndOf="@+id/icnLowVolume"
+                        app:layout_constraintTop_toTopOf="parent" />
+
+                    <ImageView
+                        android:id="@+id/btnLowVolumeTest"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:src="@drawable/ic_play"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        android:contentDescription="@string/play_test_sound" />
+
+                </androidx.constraintlayout.widget.ConstraintLayout>
+
                 <View
                     android:layout_width="match_parent"
                     android:layout_height="1dp"
@@ -342,6 +396,60 @@
                         tools:ignore="HardcodedText" />
                 </LinearLayout>
 
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:layout_marginBottom="2dp"
+                    android:layout_marginTop="2dp"
+                    android:background="#c0c0c0"/>
+
+                <Switch
+                    android:id="@+id/prefMsgNormForceVolume"
+                    android:text="@string/str_forcevolume"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="4dp"
+                    android:layout_marginEnd="4dp"
+                    android:minHeight="48dp" />
+
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:columnCount="3"
+                    android:orientation="horizontal"
+                    android:layout_marginStart="4dp"
+                    android:layout_marginEnd="4dp">
+
+                    <ImageView
+                        android:id="@+id/icnNormVolume"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:contentDescription="@string/volume_icon"
+                        android:src="@drawable/ic_volume"
+                        app:layout_constraintStart_toStartOf="parent" />
+
+                    <SeekBar
+                        android:id="@+id/prefMsgNormVolume"
+                        android:layout_width="0dp"
+                        android:layout_height="match_parent"
+                        android:layout_marginStart="8dp"
+                        android:layout_marginEnd="8dp"
+                        app:layout_constraintBottom_toBottomOf="parent"
+                        app:layout_constraintEnd_toStartOf="@+id/btnNormVolumeTest"
+                        app:layout_constraintHorizontal_bias="0.5"
+                        app:layout_constraintStart_toEndOf="@+id/icnNormVolume"
+                        app:layout_constraintTop_toTopOf="parent" />
+
+                    <ImageView
+                        android:id="@+id/btnNormVolumeTest"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:src="@drawable/ic_play"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        android:contentDescription="@string/play_test_sound" />
+
+                </androidx.constraintlayout.widget.ConstraintLayout>
+
                 <View
                     android:layout_width="match_parent"
                     android:layout_height="1dp"
@@ -499,6 +607,53 @@
                         tools:ignore="HardcodedText" />
                 </LinearLayout>
 
+                <Switch
+                    android:id="@+id/prefMsgHighForceVolume"
+                    android:text="@string/str_forcevolume"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="4dp"
+                    android:layout_marginEnd="4dp"
+                    android:minHeight="48dp" />
+
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:columnCount="3"
+                    android:orientation="horizontal"
+                    android:layout_marginStart="4dp"
+                    android:layout_marginEnd="4dp">
+
+                    <ImageView
+                        android:id="@+id/icnHighVolume"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:contentDescription="@string/volume_icon"
+                        android:src="@drawable/ic_volume"
+                        app:layout_constraintStart_toStartOf="parent" />
+
+                    <SeekBar
+                        android:id="@+id/prefMsgHighVolume"
+                        android:layout_width="0dp"
+                        android:layout_height="match_parent"
+                        android:layout_marginStart="8dp"
+                        android:layout_marginEnd="8dp"
+                        app:layout_constraintBottom_toBottomOf="parent"
+                        app:layout_constraintEnd_toStartOf="@+id/btnHighVolumeTest"
+                        app:layout_constraintHorizontal_bias="0.5"
+                        app:layout_constraintStart_toEndOf="@+id/icnHighVolume"
+                        app:layout_constraintTop_toTopOf="parent" />
+
+                    <ImageView
+                        android:id="@+id/btnHighVolumeTest"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:src="@drawable/ic_play"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        android:contentDescription="@string/play_test_sound" />
+
+                </androidx.constraintlayout.widget.ConstraintLayout>
+
                 <View
                     android:layout_width="match_parent"
                     android:layout_height="1dp"

android/app/src/main/res/layout/message_card.xml

@@ -1,81 +1,117 @@
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:card_view="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
-    <androidx.cardview.widget.CardView
-        android:id="@+id/card_view"
+    <RelativeLayout
+        android:id="@+id/layoutBack"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
+        android:layout_height="match_parent"
         android:layout_margin="@dimen/card_margin"
-        android:elevation="3dp"
-        card_view:cardCornerRadius="@dimen/card_album_radius">
+        android:background="@color/bg_row_background">
 
+        <ImageView
+            android:id="@+id/delete_icon"
+            android:layout_width="@dimen/ic_delete"
+            android:layout_height="@dimen/ic_delete"
+            android:layout_alignParentRight="true"
+            android:layout_centerVertical="true"
+            android:layout_marginRight="@dimen/padd_10"
+            android:src="@drawable/ic_trash"
+            android:contentDescription="@string/delete" />
 
-        <androidx.constraintlayout.widget.ConstraintLayout
-            android:background="#FFFFFFFF"
-            android:layout_margin="3dp"
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:layout_marginRight="@dimen/padd_10"
+            android:layout_toLeftOf="@id/delete_icon"
+            android:text="@string/delete"
+            android:textColor="#fff"
+            android:textSize="13dp" />
+
+    </RelativeLayout>
+
+    <RelativeLayout
+        android:id="@+id/layoutFront"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.cardview.widget.CardView
+            android:id="@+id/card_view"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content">
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_margin="@dimen/card_margin"
+            android:elevation="3dp"
+            card_view:cardCornerRadius="@dimen/card_album_radius">
 
-            <TextView
-                android:id="@+id/tvTimestamp"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:layout_constraintTop_toTopOf="parent"
-                app:layout_constraintRight_toRightOf="parent"
-                android:textSize="12sp"
-                android:textStyle="italic"
 
-                android:text="2018-09-11 20:22:32" />
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:background="#FFFFFFFF"
+                android:layout_margin="3dp"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
 
-            <TextView
-                android:id="@+id/tvTitle"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                app:layout_constraintTop_toTopOf="parent"
-                app:layout_constraintLeft_toLeftOf="parent"
-                app:layout_constraintRight_toLeftOf="@+id/tvTimestamp"
-                android:layout_marginEnd="4sp"
-                android:textSize="16sp"
-                android:textColor="@color/colorBlack"
-                android:textStyle="bold"
-                android:ellipsize="none"
-                android:maxLines="6"
+                <TextView
+                    android:id="@+id/tvTimestamp"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintRight_toRightOf="parent"
+                    android:textSize="12sp"
+                    android:textStyle="italic"
 
-                android:text="Message from me"/>
+                    android:text="2018-09-11 20:22:32" />
 
-            <TextView
-                android:id="@+id/tvMessage"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                app:layout_constraintTop_toBottomOf="@+id/tvTitle"
-                app:layout_constraintRight_toLeftOf="@+id/ivPriority"
-                app:layout_constraintLeft_toLeftOf="parent"
-                android:layout_margin="4sp"
-                android:ellipsize="none"
-                android:maxLines="32"
-                android:scrollHorizontally="false"
+                <TextView
+                    android:id="@+id/tvTitle"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintLeft_toLeftOf="parent"
+                    app:layout_constraintRight_toLeftOf="@+id/tvTimestamp"
+                    android:layout_marginEnd="4sp"
+                    android:textSize="16sp"
+                    android:textColor="@color/colorBlack"
+                    android:textStyle="bold"
+                    android:ellipsize="none"
+                    android:maxLines="6"
 
-                android:text="asdasd asdasd asdasd a" />
+                    android:text="Message from me"/>
 
-            <ImageView
-                android:id="@+id/ivPriority"
-                android:tint="#BBB"
-                android:visibility="gone"
-                android:layout_width="24dp"
-                android:layout_height="24dp"
-                app:layout_constraintTop_toBottomOf="@+id/tvTimestamp"
-                app:layout_constraintBottom_toBottomOf="parent"
-                app:layout_constraintRight_toRightOf="parent"
-                android:layout_margin="4sp"
-                android:paddingTop="3dp"
-                android:contentDescription="@string/desc_priority_icon" />
+                <TextView
+                    android:id="@+id/tvMessage"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toBottomOf="@+id/tvTitle"
+                    app:layout_constraintRight_toLeftOf="@+id/ivPriority"
+                    app:layout_constraintLeft_toLeftOf="parent"
+                    android:layout_margin="4sp"
+                    android:ellipsize="end"
+                    android:maxLines="6"
+                    android:scrollHorizontally="false"
 
-        </androidx.constraintlayout.widget.ConstraintLayout>
+                    android:text="asdasd asdasd asdasd a" />
 
-    </androidx.cardview.widget.CardView>
+                <ImageView
+                    android:id="@+id/ivPriority"
+                    android:tint="#BBB"
+                    android:visibility="gone"
+                    android:layout_width="24dp"
+                    android:layout_height="24dp"
+                    app:layout_constraintTop_toBottomOf="@+id/tvTimestamp"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintRight_toRightOf="parent"
+                    android:layout_margin="4sp"
+                    android:paddingTop="3dp"
+                    android:contentDescription="@string/desc_priority_icon" />
 
-</LinearLayout>
+            </androidx.constraintlayout.widget.ConstraintLayout>
+
+        </androidx.cardview.widget.CardView>
+
+    </RelativeLayout>
+
+</FrameLayout>

android/app/src/main/res/values/colors.xml

@@ -7,4 +7,6 @@
     <color name="colorHeaderForeground">#FFFFFF</color>
 
     <color name="colorBlack">#000</color>
+
+    <color name="bg_row_background">#fa315b</color>
 </resources>

android/app/src/main/res/values/dimens.xml

@@ -2,4 +2,8 @@
 <resources>
     <dimen name="card_margin">5dp</dimen>
     <dimen name="card_album_radius">0dp</dimen>
+
+    <dimen name="padd_10">10dp</dimen>
+    <dimen name="ic_delete">30dp</dimen>
+    <dimen name="thumbnail">90dp</dimen>
 </resources>

android/app/src/main/res/values/strings.xml

@@ -24,10 +24,14 @@
     <string name="str_msg_enablesound">Enable notification sound</string>
     <string name="str_notificationsound">Notification sound</string>
     <string name="str_repeatnotificationsound">Repeat notification sound</string>
+    <string name="str_forcevolume">Automatically set the volume</string>
     <string name="str_enable_led">Enable notification light</string>
     <string name="str_ledcolor">Notification light color</string>
     <string name="str_enable_vibration">Enable notification vibration</string>
     <string name="str_upgrade_account">Upgrade account</string>
     <string name="str_promode">Thank you for supporting the app and using the pro mode</string>
     <string name="str_promode_info">Increase your daily quota, remove the ad banner and support the developer (that\'s me)</string>
+    <string name="volume_icon">Volume icon</string>
+    <string name="play_test_sound">Play test sound</string>
+    <string name="delete">DELETE</string>
 </resources>

android/app/version.properties

@@ -1,3 +1,3 @@
-#Mon Nov 12 13:06:09 CET 2018
-VERSION_NAME=0.0.6
-VERSION_CODE=6
+#Mon Nov 12 18:26:41 CET 2018
+VERSION_NAME=0.0.7
+VERSION_CODE=7

web/api.php

@@ -12,11 +12,17 @@
     <link rel="icon" type="image/png" href="/favicon.ico"/>
 </head>
 <body>
-	<div id="mainpnl">
-        <a href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
-        <a href="/index.php" class="button bordered" id="tr_link">Send</a>
 
-        <a href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
+    <div id="copyinfo">
+        <a tabindex="-1" href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
+        <a tabindex="-1" href="https://www.mikescher.com">made by Mike Schw&ouml;rer</a>
+    </div>
+
+	<div id="mainpnl">
+        <a tabindex="-1" href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
+        <a tabindex="-1" href="/index.php" class="button bordered" id="tr_link">Send</a>
+
+        <a tabindex="-1" href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
 
         <p>Get your user-id and user-key from the app and send notifications to your phone by performing a POST request against <code>https://simplecloudnotifier.blackforestbytes.com/send.php</code></p>
         <pre>curl                                          \
@@ -34,12 +40,8 @@
     --data "title={message_title}"            \
     https://scn.blackforestbytes.com/send.php</pre>
 
-        <a href="/index_more.php" class="button bordered tertiary" style="float: right; min-width: 100px; text-align: center">More</a>
+        <a href="/api_more.php" class="button bordered tertiary" style="float: right; min-width: 100px; text-align: center">More</a>
 
     </div>
-
-	<div id="copyinfo">
-		<a href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
-	</div>
 </body>
 </html>

web/api/.gitignore

@@ -0,0 +1,2 @@
+config.php
+.verify_accesstoken

web/api/ack.php

@@ -37,11 +37,10 @@ if (count($datas)<=0) die(json_encode(['success' => false, 'errid'=>301, 'messag
 $stmt = $pdo->prepare('UPDATE messages SET ack=1 WHERE scn_message_id=:smid AND sender_user_id=:uid');
 $stmt->execute(['smid' => $scn_msg_id, 'uid' => $user_id]);
 
-echo json_encode(
+api_return(200,
 [
 	'success'        => true,
 	'prev_ack'       => $datas[0]['ack'],
 	'new_ack'        => 1,
 	'message'        => 'ok'
 ]);
-return 0;

web/api/info.php

@@ -26,19 +26,26 @@ if ($data === null) die(json_encode(['success' => false, 'errid'=>202, 'message'
 if ($data['user_id'] !== (int)$user_id) die(json_encode(['success' => false, 'errid'=>203, 'message' => 'UserID not found']));
 if ($data['user_key'] !== $user_key) die(json_encode(['success' => false, 'errid'=>204, 'message' => 'Authentification failed']));
 
+
+
+$stmt = $pdo->prepare('SELECT COUNT(*) FROM messages WHERE ack=0 AND sender_user_id=:uid');
+$stmt->execute(['uid' => $user_id]);
+$nack_count = $stmt->fetch(PDO::FETCH_NUM);
+
+
 $quota = $data['quota_today'];
 $is_pro = $data['is_pro'];
 
 if ($data['quota_day'] === null || $data['quota_day'] !== date("Y-m-d")) $quota=0;
 
-echo json_encode(
+api_return(200,
 [
 	'success'        => true,
+	'message'        => 'ok',
 	'user_id'        => $user_id,
 	'quota'          => $quota,
 	'quota_max'      => Statics::quota_max($is_pro),
 	'is_pro'         => $is_pro,
 	'fcm_token_set'  => ($data['fcm_token'] != null),
-	'message'        => 'ok'
+	'unack_count'    => $nack_count,
 ]);
-return 0;

web/api/model.php

@@ -2,12 +2,39 @@
 
 include('lib/httpful.phar');
 
+class ERR
+{
+	const NO_ERROR             = 0000;
+
+	const MISSING_UID          = 1101;
+	const MISSING_TOK          = 1102;
+	const MISSING_TITLE        = 1103;
+	const INVALID_PRIO         = 1104;
+	const REQ_METHOD           = 1105;
+
+	const NO_TITLE             = 1201;
+	const TITLE_TOO_LONG       = 1202;
+	const CONTENT_TOO_LONG     = 1203;
+	const USR_MSG_ID_TOO_LONG  = 1204;
+
+	const USER_NOT_FOUND       = 1301;
+	const USER_AUTH_FAILED     = 1302;
+
+	const NO_DEVICE_LINKED     = 1401;
+
+	const QUOTA_REACHED        = 2101;
+
+	const FIREBASE_COM_FAILED  = 9901;
+	const FIREBASE_COM_ERRORED = 9902;
+	const INTERNAL_EXCEPTION   = 9903;
+}
+
 class Statics
 {
 	public static $DB = NULL;
 	public static $CFG = NULL;
 
-	public static function quota_max($is_pro) { return $is_pro ? 1000 : 100; }
+	public static function quota_max($is_pro) { return $is_pro ? 1000 : 50; }
 }
 
 function getConfig()
@@ -190,10 +217,15 @@ function refreshVerifyToken()
 	return $obj['access_token'];
 }
 
+/**
+ * @param int $http_code
+ * @param array $message
+ */
 function api_return($http_code, $message)
 {
 	http_response_code($http_code);
-	echo $message;
+	header('Content-Type: application/json');
+	echo json_encode($message);
 	die();
 }
 

web/api/register.php

@@ -38,7 +38,7 @@ $stmt->execute(['uid' => $user_id, 'ft' => $fcm_token]);
 
 $pdo->commit();
 
-echo json_encode(
+api_return(200,
 [
 	'success'   => true,
 	'user_id'   => $user_id,
@@ -48,5 +48,3 @@ echo json_encode(
 	'is_pro'    => $ispro,
 	'message'   => 'New user registered'
 ]);
-
-return 0;

web/api/requery.php

@@ -0,0 +1,56 @@
+<?php
+
+include_once 'model.php';
+
+$INPUT = array_merge($_GET, $_POST);
+
+
+if (!isset($INPUT['user_id']))  die(json_encode(['success' => false, 'errid'=>101, 'message' => 'Missing parameter [[user_id]]']));
+if (!isset($INPUT['user_key'])) die(json_encode(['success' => false, 'errid'=>102, 'message' => 'Missing parameter [[user_key]]']));
+
+$user_id   = $INPUT['user_id'];
+$user_key  = $INPUT['user_key'];
+
+//----------------------
+
+$pdo = getDatabase();
+
+$stmt = $pdo->prepare('SELECT user_id, user_key, quota_today, is_pro, quota_day, fcm_token FROM users WHERE user_id = :uid LIMIT 1');
+$stmt->execute(['uid' => $user_id]);
+
+$datas = $stmt->fetchAll(PDO::FETCH_ASSOC);
+if (count($datas)<=0) die(json_encode(['success' => false, 'errid'=>201, 'message' => 'User not found']));
+$data = $datas[0];
+
+if ($data === null) die(json_encode(['success' => false, 'errid'=>202, 'message' => 'User not found']));
+if ($data['user_id'] !== (int)$user_id) die(json_encode(['success' => false, 'errid'=>203, 'message' => 'UserID not found']));
+if ($data['user_key'] !== $user_key) die(json_encode(['success' => false, 'errid'=>204, 'message' => 'Authentification failed']));
+
+//-------------------
+
+$stmt = $pdo->prepare('SELECT * FROM messages WHERE ack=0 AND sender_user_id=:uid ORDER BY `timestamp` DESC LIMIT 16');
+$stmt->execute(['uid' => $user_id]);
+$nonacks_sql = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+$nonacks = [];
+
+foreach ($nonacks_sql as $nack)
+{
+	$nonacks []=
+	[
+		'title'      => $nack['title'],
+		'body'       => $nack['content'],
+		'priority'   => $nack['priority'],
+		'timestamp'  => $nack['timestamp'],
+		'usr_msg_id' => $nack['usr_message_id'],
+		'scn_msg_id' => $nack['scn_message_id'],
+	];
+}
+
+api_return(200,
+[
+	'success'        => true,
+	'message'        => 'ok',
+	'count'          => count($nonacks),
+	'data'           => $nonacks,
+]);

web/api/update.php

@@ -39,7 +39,7 @@ if ($fcm_token === null)
 	$stmt = $pdo->prepare('UPDATE users SET timestamp_accessed=NOW(), user_key=:at WHERE user_id = :uid');
 	$stmt->execute(['uid' => $user_id, 'at' => $new_userkey]);
 
-	echo json_encode(
+	api_return(200,
 	[
 		'success'  => true,
 		'user_id'  => $user_id,
@@ -49,7 +49,6 @@ if ($fcm_token === null)
 		'is_pro'   => $is_pro,
 		'message'  => 'user updated'
 	]);
-	return 0;
 }
 else
 {
@@ -61,7 +60,7 @@ else
 	$stmt = $pdo->prepare('UPDATE users SET fcm_token=NULL WHERE user_id <> :uid AND fcm_token=:ft');
 	$stmt->execute(['uid' => $user_id, 'ft' => $fcm_token]);
 
-	echo json_encode(
+	api_return(200,
 	[
 		'success' => true,
 		'user_id' => $user_id,
@@ -71,5 +70,4 @@ else
 		'is_pro'   => $is_pro,
 		'message' => 'user updated'
 	]);
-	return 0;
 }

web/api/upgrade.php

@@ -45,7 +45,7 @@ if ($ispro)
 	$stmt = $pdo->prepare('UPDATE users SET is_pro=0, pro_token=NULL WHERE user_id <> :uid AND pro_token = :ptk');
 	$stmt->execute(['uid' => $user_id, 'ptk' => $pro_token]);
 
-	echo json_encode(
+	api_return(200,
 	[
 		'success'  => true,
 		'user_id'  => $user_id,
@@ -54,7 +54,6 @@ if ($ispro)
 		'is_pro'   => true,
 		'message'  => 'user updated'
 	]);
-	return 0;
 }
 else
 {
@@ -63,7 +62,7 @@ else
 	$stmt = $pdo->prepare('UPDATE users SET timestamp_accessed=NOW(), is_pro=0, pro_token=NULL WHERE user_id = :uid');
 	$stmt->execute(['uid' => $user_id]);
 
-	echo json_encode(
+	api_return(200,
 	[
 		'success'  => true,
 		'user_id'  => $user_id,
@@ -72,5 +71,4 @@ else
 		'is_pro'   => false,
 		'message'  => 'user updated'
 	]);
-	return 0;
 }

web/api_more.php

@@ -12,11 +12,17 @@
     <link rel="icon" type="image/png" href="/favicon.ico"/>
 </head>
 <body>
-	<div id="mainpnl">
-        <a href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
-        <a href="/index.php" class="button bordered" id="tr_link">Send</a>
 
-        <a href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
+    <div id="copyinfo">
+        <a tabindex="-1" href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
+        <a tabindex="-1" href="https://www.mikescher.com">made by Mike Schw&ouml;rer</a>
+    </div>
+
+	<div id="mainpnl">
+        <a tabindex="-1" href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
+        <a tabindex="-1" href="/index.php" class="button bordered" id="tr_link">Send</a>
+
+        <a tabindex="-1" href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
 
         <h2>Introduction</h2>
         <div class="section">
@@ -71,7 +77,6 @@
         "canonical_ids":0,
         "results": [{"message_id":"0:10000000000000000000000000000000d"}]
     },
-    "messagecount":623,
     "quota":17,
     "quota_max":100
 }</pre>
@@ -182,11 +187,7 @@
                 Be aware that the server only saves send messages for a short amount of time. Because of that you can only use this to prevent duplicates in a short time-frame, older messages with the same ID are probably already deleted and the message will be send again.
             </p>
         </div>
-
     </div>
 
-	<div id="copyinfo">
-		<a href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
-	</div>
 </body>
 </html>

web/css/style.css

@@ -86,13 +86,10 @@ body
     position: fixed;
     bottom: 0;
     right: 0;
-    z-index: -999;
-}
-
-#copyinfo a:hover
-{
-    font-family: "Courier New", monospace;
-    color: #00F;
+    //z-index: -999;
+    display: flex;
+    flex-direction: column;
+    text-align: right;
 }
 
 #copyinfo a,
@@ -102,6 +99,14 @@ body
     font-family: "Courier New", monospace;
     color: #AAA;
     text-decoration: none;
+    display: block;
+    line-height: 1em;
+}
+
+#copyinfo a:hover
+{
+    font-family: "Courier New", monospace;
+    color: #0288D1;
 }
 
 #tr_link

web/index.php

@@ -13,12 +13,18 @@
     <link rel="icon" type="image/png" href="/favicon.ico"/>
 </head>
 <body>
+
+    <div id="copyinfo">
+        <a tabindex="-1" href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
+        <a tabindex="-1" href="https://www.mikescher.com">made by Mike Schw&ouml;rer</a>
+    </div>
+
 	<form id="mainpnl">
 
-		<a href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
-		<a href="/index_api.php" class="button bordered" id="tr_link">API</a>
+		<a tabindex="-1" href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
+		<a tabindex="-1" href="/api.php" class="button bordered" id="tr_link">API</a>
 
-        <a href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
+        <a tabindex="-1" href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
 
 		<div class="row responsive-label">
 			<div class="col-sm-12 col-md-3"><label for="uid" class="doc">UserID</label></div>
@@ -57,10 +63,6 @@
 		</div>
 	</form>
 
-	<div id="copyinfo">
-		<a href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
-	</div>
-
 	<script src="/js/logic.js" type="text/javascript" ></script>
 	<script src="/js/toastify.js"></script>
 </body>

web/js/logic.js

@@ -55,7 +55,7 @@ function send()
 			else
 			{
 				window.location.href =
-					'/index_sent.php' +
+					'/message_sent.php' +
 					'?ok=' + 1 +
 					'&message_count=' + resp.messagecount +
 					'&quota=' + resp.quota +

web/message_sent.php

@@ -13,6 +13,10 @@
 </head>
 <body>
 
+    <div id="copyinfo">
+        <a tabindex="-1" href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
+        <a tabindex="-1" href="https://www.mikescher.com">made by Mike Schw&ouml;rer</a>
+    </div>
 
 	<div id="mainpnl">
 
@@ -41,16 +45,12 @@
 
         </div>
 
-        <a href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
-        <a href="/index.php" class="button bordered" id="tr_link">Send</a>
+        <a tabindex="-1" href="https://play.google.com/store/apps/details?id=com.blackforestbytes.simplecloudnotifier" class="button bordered" id="tl_link"><span class="icn-google-play"></span></a>
+        <a tabindex="-1" href="/index.php" class="button bordered" id="tr_link">Send</a>
 
-        <a href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
+        <a tabindex="-1" href="/" class="linkcaption"><h1>Simple Cloud Notifier</h1></a>
 
     </div>
 
-	<div id="copyinfo">
-		<a href="https://www.blackforestbytes.com">&#169; blackforestbytes</a>
-	</div>
-
 </body>
 </html>

web/send.php

@@ -1,6 +1,6 @@
 <?php
 
-include_once 'model.php';
+include_once 'api/model.php';
 
 try
 {
@@ -9,11 +9,13 @@ try
 //sleep(1);
 //------------------------------------------------------------------
 
+	if ($_SERVER['REQUEST_METHOD'] !== 'POST') api_return(400, ['success' => false, 'error' =>  ERR::REQ_METHOD, 'errhighlight' => -1, 'message' => 'Invalid request method (must be POST)']);
+
 	$INPUT = array_merge($_GET, $_POST);
 
-	if (!isset($INPUT['user_id']))  api_return(400, json_encode(['success' => false, 'error' => 1101, 'errhighlight' => 101, 'message' => 'Missing parameter [[user_id]]']));
-	if (!isset($INPUT['user_key'])) api_return(400, json_encode(['success' => false, 'error' => 1102, 'errhighlight' => 102, 'message' => 'Missing parameter [[user_token]]']));
-	if (!isset($INPUT['title']))    api_return(400, json_encode(['success' => false, 'error' => 1103, 'errhighlight' => 103, 'message' => 'Missing parameter [[title]]']));
+	if (!isset($INPUT['user_id']))  api_return(400, ['success' => false, 'error' => ERR::MISSING_UID,   'errhighlight' => 101, 'message' => 'Missing parameter [[user_id]]']);
+	if (!isset($INPUT['user_key'])) api_return(400, ['success' => false, 'error' => ERR::MISSING_TOK,   'errhighlight' => 102, 'message' => 'Missing parameter [[user_token]]']);
+	if (!isset($INPUT['title']))    api_return(400, ['success' => false, 'error' => ERR::MISSING_TITLE, 'errhighlight' => 103, 'message' => 'Missing parameter [[title]]']);
 
 //------------------------------------------------------------------
 
@@ -27,12 +29,12 @@ try
 
 //------------------------------------------------------------------
 
-	if ($priority !== '0' && $priority !== '1' && $priority !== '2') api_return(400, json_encode(['success' => false, 'error' => 1104, 'errhighlight' => 105, 'message' => 'Invalid priority']));
+	if ($priority !== '0' && $priority !== '1' && $priority !== '2') api_return(400, ['success' => false, 'error' => ERR::INVALID_PRIO, 'errhighlight' => 105, 'message' => 'Invalid priority']);
 
-	if (strlen(trim($message)) == 0)                 api_return(400, json_encode(['success' => false, 'error' => 1201, 'errhighlight' => 103, 'message' => 'No title specified']));
-	if (strlen($message) > 120)                      api_return(400, json_encode(['success' => false, 'error' => 1202, 'errhighlight' => 103, 'message' => 'Title too long (120 characters)']));
-	if (strlen($content) > 10000)                    api_return(400, json_encode(['success' => false, 'error' => 1203, 'errhighlight' => 104, 'message' => 'Content too long (10000 characters)']));
-	if ($usrmsgid != null && strlen($usrmsgid) > 64) api_return(400, json_encode(['success' => false, 'error' => 1204, 'errhighlight' => -1,  'message' => 'MessageID too long (64 characters)']));
+	if (strlen(trim($message)) == 0)                 api_return(400, ['success' => false, 'error' => ERR::NO_TITLE,            'errhighlight' => 103, 'message' => 'No title specified']);
+	if (strlen($message) > 120)                      api_return(400, ['success' => false, 'error' => ERR::TITLE_TOO_LONG,      'errhighlight' => 103, 'message' => 'Title too long (120 characters)']);
+	if (strlen($content) > 10000)                    api_return(400, ['success' => false, 'error' => ERR::CONTENT_TOO_LONG,    'errhighlight' => 104, 'message' => 'Content too long (10000 characters)']);
+	if ($usrmsgid != null && strlen($usrmsgid) > 64) api_return(400, ['success' => false, 'error' => ERR::USR_MSG_ID_TOO_LONG, 'errhighlight' => -1,  'message' => 'MessageID too long (64 characters)']);
 
 //------------------------------------------------------------------
 
@@ -42,22 +44,22 @@ try
 	$stmt->execute(['uid' => $user_id]);
 
 	$datas = $stmt->fetchAll(PDO::FETCH_ASSOC);
-	if (count($datas)<=0) die(json_encode(['success' => false, 'error' => 1301, 'errhighlight' => 101, 'message' => 'User not found']));
+	if (count($datas)<=0) die(json_encode(['success' => false, 'error' => ERR::USER_NOT_FOUND, 'errhighlight' => 101, 'message' => 'User not found']));
 	$data = $datas[0];
 
-	if ($data === null)                     api_return(401, json_encode(['success' => false, 'error' => 1301, 'errhighlight' => 101, 'message' => 'User not found']));
-	if ($data['user_id'] !== (int)$user_id) api_return(401, json_encode(['success' => false, 'error' => 1302, 'errhighlight' => 101, 'message' => 'UserID not found']));
-	if ($data['user_key'] !== $user_key)    api_return(401, json_encode(['success' => false, 'error' => 1303, 'errhighlight' => 102, 'message' => 'Authentification failed']));
+	if ($data === null)                     api_return(401, ['success' => false, 'error' => ERR::USER_NOT_FOUND,   'errhighlight' => 101, 'message' => 'User not found']);
+	if ($data['user_id'] !== (int)$user_id) api_return(401, ['success' => false, 'error' => ERR::USER_NOT_FOUND,   'errhighlight' => 101, 'message' => 'UserID not found']);
+	if ($data['user_key'] !== $user_key)    api_return(401, ['success' => false, 'error' => ERR::USER_AUTH_FAILED, 'errhighlight' => 102, 'message' => 'Authentification failed']);
 
 	$fcm = $data['fcm_token'];
 
 	$new_quota = $data['quota_today'] + 1;
 	if ($data['quota_day'] === null || $data['quota_day'] !== date("Y-m-d")) $new_quota=1;
-	if ($new_quota > Statics::quota_max($data['is_pro'])) api_return(403, json_encode(['success' => false, 'error' => 2101, 'errhighlight' => -1, 'message' => 'Daily quota reached ('.Statics::quota_max($data['is_pro']).')']));
+	if ($new_quota > Statics::quota_max($data['is_pro'])) api_return(403, ['success' => false, 'error' => ERR::QUOTA_REACHED, 'errhighlight' => -1, 'message' => 'Daily quota reached ('.Statics::quota_max($data['is_pro']).')']);
 
 	if ($fcm == null || $fcm == '' ||  $fcm == false)
 	{
-		api_return(412, json_encode(['success' => false, 'error' => 1401, 'errhighlight' => -1, 'message' => 'No device linked with this account']));
+		api_return(412, ['success' => false, 'error' => ERR::NO_DEVICE_LINKED, 'errhighlight' => -1, 'message' => 'No device linked with this account']);
 	}
 
 //------------------------------------------------------------------
@@ -69,7 +71,7 @@ try
 
 		if (count($stmt->fetchAll(PDO::FETCH_ASSOC))>0)
 		{
-			api_return(200, json_encode(
+			api_return(200,
 			[
 				'success'       => true,
 				'message'       => 'Message already sent',
@@ -79,7 +81,7 @@ try
 				'quota'         => $data['quota_today'],
 				'is_pro'        => $data['is_pro'],
 				'quota_max'     => Statics::quota_max($data['is_pro']),
-			]));
+			]);
 		}
 	}
 
@@ -136,14 +138,14 @@ try
 		{
 			reportError("FCM communication failed (success_1 <> true)\n\n".$httpresult);
 			$pdo->rollBack();
-			api_return(500, json_encode(['success' => false, 'error' => 9902, 'errhighlight' => -1, 'message' => 'Communication with firebase service failed.']));
+			api_return(500, ['success' => false, 'error' => ERR::FIREBASE_COM_ERRORED, 'errhighlight' => -1, 'message' => 'Communication with firebase service failed.']);
 		}
 	}
 	catch (Exception $e)
 	{
 		reportError("FCM communication failed", $e);
 		$pdo->rollBack();
-		api_return(500, json_encode(['success' => false, 'error' => 9901, 'errhighlight' => -1, 'message' => 'Communication with firebase service failed.'."\n\n".'Exception: ' . $e->getMessage()]));
+		api_return(500, ['success' => false, 'error' => ERR::FIREBASE_COM_FAILED, 'errhighlight' => -1, 'message' => 'Communication with firebase service failed.'."\n\n".'Exception: ' . $e->getMessage()]);
 	}
 
 	$stmt = $pdo->prepare('UPDATE users SET timestamp_accessed=NOW(), messages_sent=messages_sent+1, quota_today=:q, quota_day=NOW() WHERE user_id = :uid');
@@ -154,9 +156,11 @@ try
 
 	$pdo->commit();
 
-	api_return(200, json_encode(
+	api_return(200,
 	[
 		'success'       => true,
+		'error'         => ERR::NO_ERROR,
+		'errhighlight'  => -1,
 		'message'       => 'Message sent',
 		'suppress_send' => false,
 		'response'      => $httpresult,
@@ -165,11 +169,11 @@ try
 		'is_pro'        => $data['is_pro'],
 		'quota_max'     => Statics::quota_max($data['is_pro']),
 		'scn_msg_id'    => $scn_msg_id,
-	]));
+	]);
 }
 catch (Exception $mex)
 {
 	reportError("Root try-catch triggered", $mex);
 	if ($pdo->inTransaction()) $pdo->rollBack();
-	api_return(500, json_encode(['success' => false, 'error' => 9903, 'errhighlight' => -1, 'message' => 'PHP script threw exception.'."\n\n".'Exception: ' . $e->getMessage()]));
+	api_return(500, ['success' => false, 'error' => ERR::INTERNAL_EXCEPTION, 'errhighlight' => -1, 'message' => 'PHP script threw exception.'."\n\n".'Exception: ' . $e->getMessage()]);
 }