set constants for min item height and call controls height

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/adapters/ParticipantsAdapter.java

@@ -15,6 +15,7 @@ import com.facebook.drawee.backends.pipeline.Fresco;
 import com.facebook.drawee.interfaces.DraweeController;
 import com.facebook.drawee.view.SimpleDraweeView;
 import com.nextcloud.talk.R;
+import com.nextcloud.talk.controllers.CallController;
 import com.nextcloud.talk.utils.DisplayUtils;
 
 import org.webrtc.MediaStream;
@@ -28,12 +29,12 @@ import java.util.Map;
 public class ParticipantsAdapter extends BaseAdapter {
 
     private static final String TAG = "ParticipantsAdapter";
+    private static final int ITEM_MIN_HEIGHT = 500;
 
     private final Context mContext;
     private final ArrayList<ParticipantDisplayItem> participantDisplayItems;
     private final RelativeLayout gridViewWrapper;
     private final LinearLayout callInfosLinearLayout;
-    private final LinearLayout callControlsLinearLayout;
     private final int columns;
     private final boolean isVoiceOnlyCall;
 
@@ -41,13 +42,11 @@ public class ParticipantsAdapter extends BaseAdapter {
                                Map<String, ParticipantDisplayItem> participantDisplayItems,
                                RelativeLayout gridViewWrapper,
                                LinearLayout callInfosLinearLayout,
-                               LinearLayout callControlsLinearLayout,
                                int columns,
                                boolean isVoiceOnlyCall) {
         this.mContext = mContext;
         this.gridViewWrapper = gridViewWrapper;
         this.callInfosLinearLayout = callInfosLinearLayout;
-        this.callControlsLinearLayout = callControlsLinearLayout;
         this.columns = columns;
         this.isVoiceOnlyCall = isVoiceOnlyCall;
 
@@ -143,14 +142,14 @@ public class ParticipantsAdapter extends BaseAdapter {
         if (callInfosLinearLayout.getVisibility() == View.VISIBLE && isVoiceOnlyCall) {
             headerHeight = callInfosLinearLayout.getHeight();
         }
-        if (callControlsLinearLayout.getVisibility() == View.VISIBLE && isVoiceOnlyCall) {
-            callControlsHeight = callControlsLinearLayout.getHeight();
+        if (isVoiceOnlyCall) {
+            callControlsHeight = CallController.CALL_CONTROLS_HEIGHT;
         }
         int itemHeight = (gridViewWrapper.getHeight() - headerHeight - callControlsHeight) / getRowsCount(getCount());
-//        if (itemHeight < 9000) {
-//            itemHeight = 9000;
-//        }
-        return itemHeight + 10;
+        if (itemHeight < ITEM_MIN_HEIGHT) {
+            itemHeight = ITEM_MIN_HEIGHT;
+        }
+        return itemHeight;
     }
 
     private int getRowsCount(int items) {

app/src/main/java/com/nextcloud/talk/controllers/CallController.java

@@ -163,6 +163,8 @@ public class CallController extends BaseController {
 
     private static final String TAG = "CallController";
 
+    public static final int CALL_CONTROLS_HEIGHT = 300;
+
     private static final String[] PERMISSIONS_CALL = {
             android.Manifest.permission.CAMERA,
             android.Manifest.permission.RECORD_AUDIO,
@@ -486,7 +488,7 @@ public class CallController extends BaseController {
             RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                                                                                  ViewGroup.LayoutParams.WRAP_CONTENT);
             params.addRule(RelativeLayout.BELOW, R.id.callInfosLinearLayout);
-            params.setMargins(0,0,0,400);
+            params.setMargins(0,0,0, CALL_CONTROLS_HEIGHT);
             gridView.setLayoutParams(params);
         } else {
             callControlEnableSpeaker.setVisibility(View.GONE);
@@ -562,20 +564,11 @@ public class CallController extends BaseController {
                 }
             });
 
-            LinearLayout callControlsLinearLayout = controllerCallLayout.findViewById(R.id.callControlsLinearLayout);
-            callControlsLinearLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
-                @Override
-                public void onGlobalLayout() {
-                    callControlsLinearLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
-                }
-            });
-
             participantsAdapter = new ParticipantsAdapter(
                     this.getActivity(),
                     participantDisplayItems,
                     gridViewWrapper,
                     callInfosLinearLayout,
-                    callControlsLinearLayout,
                     columns,
                     isVoiceOnlyCall);
             gridView.setAdapter(participantsAdapter);

app/src/main/res/layout/controller_call.xml

@@ -53,7 +53,6 @@
                 android:stretchMode="columnWidth"
                 android:numColumns="2"
                 android:scrollbars="vertical"
-                android:background="#fff000"
                 />
 
             <FrameLayout