Fixed minor bug with user presence system

app/src/main/java/io/github/chronosx88/influence/XMPPConnection.java

@@ -128,6 +128,9 @@ public class XMPPConnection implements ConnectionListener {
             } catch (InterruptedException e) {
                 e.printStackTrace();
             }
+            if(AppHelper.isIsMainActivityDestroyed()) {
+                sendUserPresence(new Presence(Presence.Type.unavailable));
+            }
         }
     }
 

app/src/main/java/io/github/chronosx88/influence/helpers/AppHelper.java

@@ -51,6 +51,7 @@ public class AppHelper extends MultiDexApplication {
     private static LoginCredentials currentLoginCredentials;
     private static Handler mainUIThreadHandler;
     private static ServiceConnection serviceConnection;
+    private static boolean isMainActivityDestroyed = true;
     public final static Map<String, byte[]> avatarsCache = new ConcurrentHashMap<>();
 
     @Override
@@ -140,4 +141,12 @@ public class AppHelper extends MultiDexApplication {
     public static ServiceConnection getServiceConnection() {
         return serviceConnection;
     }
+
+    public static boolean isIsMainActivityDestroyed() {
+        return isMainActivityDestroyed;
+    }
+
+    public static void setIsMainActivityDestroyed(boolean isMainActivityDestroyed) {
+        AppHelper.isMainActivityDestroyed = isMainActivityDestroyed;
+    }
 }

app/src/main/java/io/github/chronosx88/influence/presenters/MainPresenter.kt

@@ -17,6 +17,7 @@
 package io.github.chronosx88.influence.presenters
 
 import android.content.Intent
+import android.util.Log
 import io.github.chronosx88.influence.R
 import io.github.chronosx88.influence.contracts.CoreContracts
 import io.github.chronosx88.influence.helpers.AppHelper
@@ -27,6 +28,7 @@ import io.github.chronosx88.influence.models.appEvents.NewChatEvent
 import io.github.chronosx88.influence.views.LoginActivity
 import java9.util.concurrent.CompletableFuture
 import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
@@ -74,6 +76,17 @@ class MainPresenter(private val view: CoreContracts.IMainViewContract) : CoreCon
 
     override fun onStart() {
         EventBus.getDefault().register(this)
+        GlobalScope.launch {
+            var count = 0
+            while(AppHelper.getXmppConnection() == null && count <= 10) {
+                delay(1000)
+                count++
+            }
+            if(AppHelper.getXmppConnection() != null) {
+                AppHelper.getXmppConnection().sendUserPresence(Presence(Presence.Type.available))
+            }
+        }
+        AppHelper.setIsMainActivityDestroyed(false)
     }
 
     override fun onStop() {
@@ -82,10 +95,16 @@ class MainPresenter(private val view: CoreContracts.IMainViewContract) : CoreCon
 
     override fun onDestroy() {
         GlobalScope.launch {
+            var count = 0
+            // Wait for connection will not be null
+            while(AppHelper.getXmppConnection() == null && count <= 10) {
+                delay(1000)
+                count++
+            }
             if(AppHelper.getXmppConnection() != null) {
-                if(AppHelper.getXmppConnection().isConnectionAlive)
+                AppHelper.getXmppConnection().sendUserPresence(Presence(Presence.Type.unavailable))
-                    AppHelper.getXmppConnection().sendUserPresence(Presence(Presence.Type.unavailable))
             }
         }
+        AppHelper.setIsMainActivityDestroyed(true)
     }
 }

app/src/main/java/io/github/chronosx88/influence/views/MainActivity.java

@@ -38,6 +38,7 @@ import org.jetbrains.annotations.NotNull;
 
 import io.github.chronosx88.influence.R;
 import io.github.chronosx88.influence.contracts.CoreContracts;
+import io.github.chronosx88.influence.helpers.AppHelper;
 import io.github.chronosx88.influence.presenters.MainPresenter;
 import io.github.chronosx88.influence.views.fragments.DialogListFragment;
 import io.github.chronosx88.influence.views.fragments.SettingsFragment;
@@ -96,6 +97,7 @@ public class MainActivity extends AppCompatActivity implements CoreContracts.IMa
         progressDialog.setCancelable(false);
         progressDialog.setProgressStyle(android.R.style.Widget_ProgressBar_Small);
         presenter.initConnection();
+        AppHelper.setIsMainActivityDestroyed(false);
     }
 
     @Override