sheishuoAPP/uikit/res/drawable/rechage_button_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_checked="true"
        android:state_enabled="true">
        <shape>
            <corners android:radius="15dp"/>
            <stroke android:width="1dp"
                android:color="@color/green_4DC0A4"/>
        </shape>
    </item>

    <item android:state_checked="false"
        android:drawable="@drawable/recharge_botton_unchecked"/>



</selector>