fixed openDialogs call when poping back stack

1 files changed, 6 insertions, 2 deletions

diff --git a/src/main/java/de/pixart/messenger/ui/ConversationActivity.java b/src/main/java/de/pixart/messenger/ui/ConversationActivity.java
index b119d62ea..36b5de0c0 100644
--- a/src/main/java/de/pixart/messenger/ui/ConversationActivity.java
+++ b/src/main/java/de/pixart/messenger/ui/ConversationActivity.java
@@ -243,9 +243,12 @@ public class ConversationActivity extends XmppActivity implements OnConversation
     }
 
     private void showDialogsIfMainIsOverview() {
-        Fragment fragment = getFragmentManager().findFragmentById(R.id.main_fragment);
+        if (xmppConnectionService == null) {
+            return;
+        }
+        final Fragment fragment = getFragmentManager().findFragmentById(R.id.main_fragment);
         if (fragment != null && fragment instanceof ConversationsOverviewFragment) {
-            if (ExceptionHelper.checkForCrash(this, this.xmppConnectionService)) {
+            if (ExceptionHelper.checkForCrash(this)) {
                 return;
             }
             openBatteryOptimizationDialogIfNeeded();
@@ -403,6 +406,7 @@ public class ConversationActivity extends XmppActivity implements OnConversation
     public void onConversationSelected(Conversation conversation) {
         if (ConversationFragment.getConversation(this) == conversation) {
             Log.d(Config.LOGTAG, "ignore onConversationSelected() because conversation is already open");
+            return;
         }
         openConversation(conversation, null);
     }