res/drawable/corpus_indicator_bg_noarrow.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2010 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.
-->

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- We use a blank 9-patch here to work around a bug in the android framework. A subtle problem
    in LayerDrawable means that if it is composed of simple drawable objects, it will reset the
    padding of it's host view when set as the background. Using a 9-patch means that we can 'hard-
    code' the padding we want into the 9 patch, so when it resets its host views padding it doesn't
    actually change it. (drawable/corpus_indicator_bg uses layer drawables to composite an arrow
    on top of these basic background). See bug 2826716. -->
    <item android:state_window_focused="false" android:state_enabled="true"
        android:drawable="@drawable/corpus_indicator_blank" />

    <item android:state_pressed="true"
        android:drawable="@drawable/corpus_indicator_bg_pressed" />

    <item android:state_focused="true"
        android:drawable="@drawable/corpus_indicator_bg_focused" />

    <item android:state_enabled="true"
        android:drawable="@drawable/corpus_indicator_blank" />

</selector>