加入开源协议

Author: devilsen

README.md

@@ -102,3 +102,19 @@ Bitmap bitmap = writer.write("Hello World", BarCodeUtil.dp2px(this, 200), BarCod
 
 [设计思路](https://www.jianshu.com/p/e2866af44236)
 
+## License
+
+    Copyright (C) 2012 The Android Open Source Project
+    Copyright 2019 Devilsen
+
+    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.