Set background image invisible when not in use

Fixing bug that occurred when the device was turned. It would
show the background logo before redrawing the listview. This
sets the background textview to invisible after scanning is
completed.

Author: iankchristie

android/PhysicalWeb/app/src/main/java/org/physical_web/physicalweb/NearbyBeaconsFragment.java

@@ -99,8 +99,7 @@ public void run() {
       Log.d(TAG, "running first scan timeout");
       if (!mGroupIdQueue.isEmpty()) {
         emptyGroupIdQueue();
-        mSwipeRefreshWidget.setRefreshing(false);
-        mScanningAnimationDrawable.stop();
+        setRefreshWidgetInvisible();
       }
     }
   };
@@ -112,8 +111,7 @@ public void run() {
       Log.d(TAG, "running second scan timeout");
       emptyGroupIdQueue();
       mSecondScanComplete = true;
-      mSwipeRefreshWidget.setRefreshing(false);
-      mScanningAnimationDrawable.stop();
+      setRefreshWidgetInvisible();
       if (mNearbyDeviceAdapter.getCount() == 0) {
         int tintColor = ContextCompat.getColor(getActivity(), R.color.physical_web_logo);
         mScanningAnimationDrawable.setColorFilter(tintColor, PorterDuff.Mode.SRC_IN);
@@ -335,8 +333,7 @@ private void stopScanningDisplay() {
     mHandler.removeCallbacks(mThirdScanTimeout);
 
     // Change the display appropriately
-    mSwipeRefreshWidget.setRefreshing(false);
-    mScanningAnimationDrawable.stop();
+    setRefreshWidgetInvisible();
   }
 
   private void startScanningDisplay(long scanStartTime, boolean hasResults) {
@@ -351,8 +348,7 @@ private void startScanningDisplay(long scanStartTime, boolean hasResults) {
       mScanningAnimationTextView.setText(R.string.empty_nearby_beacons_list_text);
       mScanningAnimationDrawable.start();
     } else {
-      mSwipeRefreshWidget.setRefreshing(false);
-      mScanningAnimationDrawable.stop();
+      setRefreshWidgetInvisible();
     }
 
     // Schedule the timeouts
@@ -401,6 +397,12 @@ private static boolean isFolderItem(PwPair item) {
     return item.getUrlDevice() == null && item.getPwsResult().getSiteUrl() == null;
   }
 
+  private void setRefreshWidgetInvisible() {
+    mSwipeRefreshWidget.setRefreshing(false);
+    mScanningAnimationDrawable.stop();
+    mScanningAnimationTextView.setVisibility(View.INVISIBLE);
+  }
+
   // Adapter for holding beacons found through scanning.
   private class NearbyBeaconsAdapter extends BaseAdapter {
     private List<PwPair> mPwPairs;
@@ -593,5 +595,5 @@ public void clear() {
       notifyDataSetChanged();
     }
   }
-}
 
+}