<?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2011 The Android Open Source Project Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <!-- Invisible view. Note we show/hide the fragment at runtime with FragmentTransaction.show()/hide() in order to change the visibility of the options menu. This means the visibility of the view will be changed at runtime, so we use width/height to make it invisible, rather than using visibility. --> <View xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="0dip" android:layout_height="0dip"/>