圆润的内角与透明内部框架 [英] Rounded Inner corners with transparent inside frame

问题描述

我试图让从code一个框架，使我能够把它做圆角内眼角用实心填充外，透明的内部。 就像用透明的椭圆形内的实心矩形。的图片附后。我曾尝试一些形状组合，所有的在线显示可用的边角之外。

I am trying to make a frame from code so that I can apply it to make rounded inner corners with a solid fill outside and transparent inside. Just like a solid rectangle with transparent oval inside. picture attached. I have tried few shape combinations all that available online displays the corners outside.

里面应该是透明的不白。 该图像是从这个帖子但这里psented解决方案$ P $不算什么我在寻找我不想使用一个9补丁绘制，但想在code创建的。

The inside should be transparent not white. The image is taken from this post but the solution presented here is not what I am looking for I dont want to use a 9 patch drawable but would like to be created in code.

请唯一有效的答案。

推荐答案

首先创建绘制文件夹3 XML布局：

First of all create 3 xml layout in drawable folder :

第一：frame.xml

first : frame.xml

第二：frame_build.xml

second :frame_build.xml

thied：red.xml

thied : red.xml

（你可以随意更改此名称），

( you can change this name as you wish ),

frame.xml：

<?xml version="1.0" encoding="utf-8"?>
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">      
 <item android:bottom="20dp" android:drawable="@drawable/red" android:top="-25dp" />
 <item android:bottom="15dp" android:drawable="@drawable/frame_build" android:top="5dp"
  android:left="-5dp" android:right="-5dp" />       
</layer-list> 

frame_build.xml：

<?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android"  
   android:shape="rectangle">       
 <padding android:left="10dp" android:top="10dp" android:right="10dp"
  android:bottom="10dp" /> 
 <corners android:radius="40dp" />   
</shape> 

red.xml

<?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android"  
   android:shape="rectangle">       
 <stroke android:width="40dp" android:height="40dp" android:color="#B22222" /> 
 <padding android:left="8dp" android:top="-1dp" android:right="8dp"
   android:bottom="9dp" /> 
 <corners android:radius="-10dp"  />   
</shape> 

最后，请参阅您的视图或布局为框架XML如下：

Finally refer your view or layout to Frame XML as follow :

  android:background="@drawable/frame"

此测试，如下图像输出：

This tested and output as below image :

希望这有助于。

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