标签：
http://blog.csdn.net/hanhailong726188/article/details/46433229
http://blog.csdn.net/ff20081528/article/details/17845753
http://blog.csdn.net/xiaanming/article/details/20934541
https://github.com/ikew0ng/SwipeBackLayout
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原文地址：http://www.cnblogs.com/vagrant1991/p/4598887.html
