Merge pull request #1753 from mfietz/issue/simpleanimator_npe

Fix RecyclerView reorder crash

app/src/main/java/de/danoeh/antennapod/adapter/AllEpisodesRecycleAdapter.java

@@ -202,7 +202,8 @@ public class AllEpisodesRecycleAdapter extends RecyclerView.Adapter<AllEpisodesR
 
     @Override
     public long getItemId(int position) {
-        return position;
+        FeedItem item = itemAccess.getItem(position);
+        return item != null ? item.getId() : RecyclerView.NO_POSITION;
     }
 
     @Override

app/src/main/java/de/danoeh/antennapod/adapter/QueueRecyclerAdapter.java

@@ -109,6 +109,12 @@ public class QueueRecyclerAdapter extends RecyclerView.Adapter<QueueRecyclerAdap
         return selectedItem;
     }
 
+    @Override
+    public long getItemId(int position) {
+        FeedItem item = itemAccess.getItem(position);
+        return item != null ? item.getId() : RecyclerView.NO_POSITION;
+    }
+
     public int getItemCount() {
         return itemAccess.getCount();
     }

app/src/main/java/de/danoeh/antennapod/fragment/AllEpisodesFragment.java

@@ -337,6 +337,7 @@ public class AllEpisodesFragment extends Fragment {
             MainActivity mainActivity = activity.get();
             listAdapter = new AllEpisodesRecycleAdapter(mainActivity, itemAccess,
                     new DefaultActionButtonCallback(mainActivity), showOnlyNewEpisodes());
+            listAdapter.setHasStableIds(true);
             recyclerView.setAdapter(listAdapter);
         }
         listAdapter.notifyDataSetChanged();

app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java

@@ -474,6 +474,7 @@ public class QueueFragment extends Fragment {
             MainActivity activity = (MainActivity) getActivity();
             recyclerAdapter = new QueueRecyclerAdapter(activity, itemAccess,
                 new DefaultActionButtonCallback(activity), itemTouchHelper);
+            recyclerAdapter.setHasStableIds(true);
             recyclerView.setAdapter(recyclerAdapter);
         }
         if(queue == null || queue.size() == 0) {

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

@@ -23,7 +23,7 @@
     <android.support.v7.widget.RecyclerView
         android:id="@+id/recyclerView"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
         android:layout_below="@id/divider"
         android:scrollbars="vertical"/>