java - 按钮效果实现方法？

Question

请问各位那个已签到的按钮是怎么做出来的（背景透明但是外围有一圈不透明的环绕线）。

Answer 1

It has been solved. The shape code can be solved by setting the background shape image as follows
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas. android.com/apk/res/android"

android:shape="rectangle">
<corners

android:topLeftRadius="100dp"
android:topRightRadius="100dp"
android:bottomRightRadius="100dp"
android:bottomLeftRadius="100dp">

</corners>
<stroke

android:width="3dp"
android:color="#bebebe">

</stroke>
</shape>

Answer 2

Draw with shape

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

    <solid
        android:color="@android:color/transparent"/>
    <stroke
        android:color="@android:color/darker_gray"
        android:width="1dp"/>
    <corners
        android:radius="20dp"/>
</shape>