Resolved - IndexOutOfBoundsException in Favorite view

app/src/main/java/com/owncloud/android/ui/fragment/ExtendedListFragment.java

@@ -33,6 +33,7 @@
 import android.os.Looper;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -148,7 +149,9 @@ public class ExtendedListFragment extends Fragment implements
     private ListFragmentBinding binding;
 
     protected void setRecyclerViewAdapter(RecyclerView.Adapter recyclerViewAdapter) {
+         mRecyclerView.getRecycledViewPool().clear();
         mRecyclerView.setAdapter(recyclerViewAdapter);
+        mRecyclerView.getAdapter().notifyDataSetChanged();
     }
 
     protected RecyclerView getRecyclerView() {
@@ -161,13 +164,13 @@ public void setLoading(boolean enabled) {
 
     public void switchToGridView() {
         if (!isGridEnabled()) {
-            getRecyclerView().setLayoutManager(new GridLayoutManager(getContext(), getColumnsCount()));
+            getRecyclerView().setLayoutManager(new WrapContentGridLayoutManager(getContext(), getColumnsCount()));
         }
     }
 
     public void switchToListView() {
         if (isGridEnabled()) {
-            getRecyclerView().setLayoutManager(new LinearLayoutManager(getContext()));
+            getRecyclerView().setLayoutManager(new WrapContentLinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false));
         }
     }
 
@@ -699,3 +702,42 @@ protected void setGridSwitchButton() {
         }
     }
 }
+class WrapContentLinearLayoutManager extends LinearLayoutManager {
+    public WrapContentLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
+        super(context, orientation, reverseLayout);
+    }
+
+    @Override
+    public boolean supportsPredictiveItemAnimations() {
+        return false;
+    }
+    @Override
+    public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
+        try {
+            super.onLayoutChildren(recycler, state);
+        } catch (IndexOutOfBoundsException e) {
+            Log.e("TAG", "meet a IOOBE in RecyclerView");
+        }
+    }
+}
+
+
+class WrapContentGridLayoutManager extends GridLayoutManager {
+    public WrapContentGridLayoutManager(Context context, int spanCount) {
+        super(context, spanCount);
+    }
+
+    @Override
+    public boolean supportsPredictiveItemAnimations() {
+        return false;
+    }
+
+    @Override
+    public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
+        try {
+            super.onLayoutChildren(recycler, state);
+        } catch (IndexOutOfBoundsException e) {
+            Log.e("TAG", "meet a IOOBE in RecyclerView");
+        }
+    }
+}

app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -1436,23 +1436,27 @@ public void switchLayoutManager(boolean grid) {
 
         RecyclerView.LayoutManager layoutManager;
         if (grid) {
-            layoutManager = new GridLayoutManager(getContext(), getColumnsCount());
-            ((GridLayoutManager) layoutManager).setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
+            //layoutManager = new GridLayoutManager(getContext(), getColumnsCount());
+            layoutManager=new WrapContentGridLayoutManager(getContext(),getColumnsCount());
+            ((WrapContentGridLayoutManager) layoutManager).setSpanSizeLookup(new WrapContentGridLayoutManager.SpanSizeLookup() {
                 @Override
                 public int getSpanSize(int position) {
                     if (position == getAdapter().getItemCount() - 1 ||
                         position == 0 && getAdapter().shouldShowHeader()) {
-                        return ((GridLayoutManager) layoutManager).getSpanCount();
+                        return ((WrapContentGridLayoutManager) layoutManager).getSpanCount();
                     } else {
                         return 1;
                     }
                 }
             });
 
         } else {
-            layoutManager = new LinearLayoutManager(getContext());
+            //layoutManager = new LinearLayoutManager(getContext());
+            layoutManager=new WrapContentLinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false);
         }
 
+        getRecyclerView().getLayoutManager().removeAllViews();
+        getRecyclerView().getRecycledViewPool().clear();
         getRecyclerView().setLayoutManager(layoutManager);
         getRecyclerView().scrollToPosition(position);
         getAdapter().setGridView(grid);