remove channel discovery from Google Play build flavor

src/main/java/eu/siacs/conversations/services/AbstractQuickConversationsService.java

@@ -1,6 +1,7 @@
 package eu.siacs.conversations.services;
 
 import android.content.Intent;
+import android.os.Build;
 
 import eu.siacs.conversations.BuildConfig;
 
@@ -25,6 +26,10 @@ public abstract class AbstractQuickConversationsService {
         return "conversations".equals(BuildConfig.FLAVOR_mode);
     }
 
+    public static boolean isPlayStoreFlavor() {
+        return "playstore".equals(BuildConfig.FLAVOR_distribution);
+    }
+
     public abstract void signalAccountStateChange();
 
     public abstract boolean isSynchronizing();

src/main/java/eu/siacs/conversations/ui/SettingsActivity.java

@@ -134,6 +134,7 @@ public class SettingsActivity extends XmppActivity implements OnSharedPreference
         changeOmemoSettingSummary();
 
         if (QuickConversationsService.isQuicksy()
+                || QuickConversationsService.isPlayStoreFlavor()
                 || Strings.isNullOrEmpty(Config.CHANNEL_DISCOVERY)) {
             final PreferenceCategory groupChats =
                     (PreferenceCategory) mSettingsFragment.findPreference("group_chats");

src/main/java/eu/siacs/conversations/ui/StartConversationActivity.java

@@ -323,7 +323,11 @@ public class StartConversationActivity extends XmppActivity implements XmppConne
             }
             switch (actionItem.getId()) {
                 case R.id.discover_public_channels:
-                    startActivity(new Intent(this, ChannelDiscoveryActivity.class));
+                    if (QuickConversationsService.isPlayStoreFlavor()) {
+                        throw new IllegalStateException("Channel discovery is not available on Google Play flavor");
+                    } else {
+                        startActivity(new Intent(this, ChannelDiscoveryActivity.class));
+                    }
                     break;
                 case R.id.join_public_channel:
                     showJoinConferenceDialog(prefilled);
@@ -349,6 +353,9 @@ public class StartConversationActivity extends XmppActivity implements XmppConne
         final Menu menu = popupMenu.getMenu();
         for (int i = 0; i < menu.size(); i++) {
             final MenuItem menuItem = menu.getItem(i);
+            if (QuickConversationsService.isPlayStoreFlavor() && menuItem.getItemId() == R.id.discover_public_channels) {
+                continue;
+            }
             final SpeedDialActionItem actionItem = new SpeedDialActionItem.Builder(menuItem.getItemId(), menuItem.getIcon())
                     .setLabel(menuItem.getTitle() != null ? menuItem.getTitle().toString() : null)
                     .setFabImageTintColor(ContextCompat.getColor(this, R.color.white))
@@ -800,6 +807,7 @@ public class StartConversationActivity extends XmppActivity implements XmppConne
 
     @Override
     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
         if (grantResults.length > 0)
             if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                 ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);