导读：?xml version=1.0 encoding=utf-8? selector xmlns:android=http://schemas.android.com/apk/res/android item android:drawable=@drawable/btn_pressed android:state_pressed=true/ item android:drawable=@drawable/btn_pressed android:state_selected=t...
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/btn_pressed" android:state_pressed="true"/>
<item android:drawable="@drawable/btn_pressed" android:state_selected="true"/>
<item android:drawable="@drawable/btn"/>
</selector>
