QSPackKit/sdk/jm_baidu/res/drawable/bd_back_icon_selector.xml

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

</selector>