###A simple but useful switch button
###How to use There is an demo contain this project. Users can see it.
###Developed by: Roy Wang (dolphinwang@foxmail.com)
If you use this lib. Please let me know.
###License: Copyright 2014 Roy Wang
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.