QSPackKit/sdk/jm_jinli/res/drawable/zzz_download_button_selector.xml

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