1.在drawable中创建item_select.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape>
<solid android:color="@color/gray" />
<stroke android:width="1dp" android:color="@color/white" />
<corners android:radius="3dp"/>
</shape>
</item>
<item>
<shape>
<solid android:color="@color/white" />
<stroke android:width="1dp" android:color="@color/white" />
<corners android:radius="3dp"/>
</shape>
</item>
</selector>
2. backgroud＝“@drawable/item_select”
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