react-native-baidumapkit/android/src/main/res/drawable/shape_round3.xml

react-native-baidumapkit

<?xml version="1.0" encoding="UTF-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval"
    android:useLevel="false" >
    <solid android:color="@color/blue_transparent" />
    <!--<stroke-->
        <!--android:width="1px"-->
        <!--android:color="@android:color/white" />-->
    <size android:width="@dimen/offset_40"
        android:height="@dimen/offset_40" />
</shape>