move keepAliveServer back to onResume(), release subscription

app/src/main/java/chat/rocket/android/activity/AbstractAuthedActivity.java

@@ -36,7 +36,6 @@ abstract class AbstractAuthedActivity extends AbstractFragmentActivity {
     if (savedInstanceState == null) {
       handleIntent(getIntent());
     }
-    ConnectivityManager.getInstance(getApplicationContext()).keepAliveServer();
 
     updateHostnameIfNeeded(rocketChatCache.getSelectedServerHostname());
     updateRoomIdIfNeeded(rocketChatCache.getSelectedRoomId());
@@ -154,6 +153,8 @@ abstract class AbstractAuthedActivity extends AbstractFragmentActivity {
     super.onResume();
 
     subscribeToConfigChanges();
+
+    ConnectivityManager.getInstance(getApplicationContext()).keepAliveServer();
   }
 
   @Override

app/src/main/java/chat/rocket/android/activity/MainActivity.java

@@ -49,10 +49,18 @@ public class MainActivity extends AbstractAuthedActivity implements MainContract
     setupSidebar();
   }
 
+  @Override
+  protected void onResume() {
+    super.onResume();
+    if (presenter != null && presenter instanceof MainPresenter) {
+      ((MainPresenter)presenter).bindViewOnly(this);
+    }
+  }
+
   @Override
   protected void onPause() {
     if (presenter != null) {
-//      presenter.release();
+      presenter.release();
     }
 
     super.onPause();

app/src/main/java/chat/rocket/android/activity/MainPresenter.java

@@ -44,6 +44,13 @@ public class MainPresenter extends BasePresenter<MainContract.View>
     this.rocketChatCache = rocketChatCache;
   }
 
+  public void bindViewOnly(@NonNull MainContract.View view) {
+    super.bindView(view);
+    subscribeToUnreadCount();
+    subscribeToSession();
+    setUserOnline();
+  }
+
   @Override
   public void bindView(@NonNull MainContract.View view) {
     super.bindView(view);