Create GridLayoutManager for TimersFragment in landscape

app/src/main/java/com/philliphsu/clock2/timers/TimersFragment.java

@@ -3,9 +3,12 @@ package com.philliphsu.clock2.timers;
 
 import android.app.Activity;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.content.Loader;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
 
 import com.philliphsu.clock2.AsyncTimersTableUpdateHandler;
 import com.philliphsu.clock2.RecyclerViewFragment;
@@ -19,6 +22,8 @@ public class TimersFragment extends RecyclerViewFragment<
         TimerViewHolder,
         TimerCursor,
         TimersCursorAdapter> {
+    private static final int LANDSCAPE_LAYOUT_COLUMNS = 2;
+
     public static final int REQUEST_CREATE_TIMER = 0;
 
     private AsyncTimersTableUpdateHandler mAsyncTimersTableUpdateHandler;
@@ -67,6 +72,16 @@ public class TimersFragment extends RecyclerViewFragment<
         return new TimersCursorAdapter(this, mAsyncTimersTableUpdateHandler);
     }
 
+    @Override
+    protected RecyclerView.LayoutManager getLayoutManager() {
+        switch (getResources().getConfiguration().orientation) {
+            case Configuration.ORIENTATION_LANDSCAPE:
+                return new GridLayoutManager(getActivity(), LANDSCAPE_LAYOUT_COLUMNS);
+            default:
+                return super.getLayoutManager();
+        }
+    }
+
     @Override
     public Loader<TimerCursor> onCreateLoader(int id, Bundle args) {
         return new TimersListCursorLoader(getActivity());