##效果：

##使用：

一共做了三个Button，分别为：Flat Button 、 Raised Button 、 Floating Action Button

动画基于nineoldandroids

其中 Floating Action Button 提供两个点击事件，一个为普通的点击事件，一个为带有双向回调函数的点击事件。

使用代码见 Demo。

##License

---

Copyright 2014 ZhongBaiTu

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.