QSPackKit/sdk/jm_hongshouzhi/res/drawable/smssdk_dialog_btn_back.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/smssdk_dialog_btn_pre" />
	<item android:drawable="@drawable/smssdk_dialog_btn_nor" />
</selector>