現在吧他們的官方文檔拿出來熟悉了一下:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="@color/black"/>
</shape>
</item>
<item>
<shape
android:shape="rectangle"
android:useLevel="false">
<solid android:color="@color/activity_info_bg"/>
<stroke
android:width="1dp"
android:color="@color/activity_info_bg"/>
<corners
android:bottomLeftRadius="@dimen/activity_bg_corners"
android:bottomRightRadius="@dimen/activity_bg_corners"
android:radius="@dimen/activity_bg_corners"
android:topLeftRadius="@dimen/activity_bg_corners"
android:topRightRadius="@dimen/activity_bg_corners"/>
</shape>
</item>
</layer-list>
先下一個 矩形背景, 然後在寫一個 圓角矩形