Xml文件  |  9行  |  268 B

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient
        android:startColor="#00000000"
        android:endColor="#FF000000"
        android:angle="90"
        android:dither="true"
    />
</shape>