Android 状态选择器的使用

1.保持选中状态:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/youhui_b" android:state_selected="true"/>
    <item android:drawable="@drawable/youhui_a" android:state_selected="false"/>
</selector>

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转载自blog.csdn.net/qq_26554909/article/details/74187984
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