支持圆形、圆角矩形、带边框的自定义View
知乎专栏：实现自定义圆形、圆角矩形View
源码比较简单，直接参考或者引入源码，可根据需要进行扩展：MultiShapeView
知乎专栏：Android View那些事
豆瓣专栏：Android源码解析录
CSDN博客：Debug的猫
新浪微博：Debug的猫
微信公众号：（主要分享Android View相关，有时也聊聊开发者的日常）
Copyright 2017 msandroid
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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