JunYou/jixin/src/main/res/drawable/ios_back_drawable_green.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true">
        <shape>
            <solid android:color="@color/main_color" />
            <corners android:radius="99dp" />
        </shape>
    </item>
    <item>
        <shape>
            <solid android:color="#FFFFFF" />
            <corners android:radius="99dp" />
            <stroke android:width="1.5dp" android:color="#E6E6E6" />

        </shape>
    </item>
</selector>