21版本以下不支持。确保两个文件夹下文件名一致
drawable文件夹：shape_solid_373737_radius_12.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/color37" />
<corners android:radius="12dp" />
</shape>
drawable-v21文件夹：shape_solid_373737_radius_12.xml
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/color4B">
<!-- Click -->
<item android:id="@android:id/mask">
<shape android:shape="rectangle">
<solid android:color="@color/color4B" />
<corners android:radius="12dp" />
</shape>
</item>
<!-- Normal -->
<item android:id="@android:id/background">
<shape android:shape="rectangle">
<solid android:color="@color/color37" />
<corners android:radius="12dp" />
</shape>
</item>
</ripple>
