Fragment的生存周期

1. 当Fragment第一次被加载到屏幕上时：

11-15 13:05:26.981 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onAttach: 
11-15 13:05:26.981 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onCreate: 
11-15 13:05:26.981 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onCreateView: 
11-15 13:05:26.982 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onActivityCreated: 
11-15 13:05:26.983 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onStart: 
11-15 13:05:26.984 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onResume: 

2. 另外一个Fragment替换了当前Fragment，此时当前的Fragment进入了停止状态：

11-15 13:10:54.701 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onPause: 
11-15 13:10:54.702 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onStop: 
11-15 13:10:54.702 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onDestroyView: 

3. 按下Back键，Fragment重新回到屏幕：

11-15 13:15:15.086 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onCreateView: 
11-15 13:15:15.087 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onActivityCreated: 
11-15 13:15:15.087 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onStart: 
11-15 13:15:15.087 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onResume: 

5. 再次按下Back键

11-15 13:16:48.405 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onPause: 
11-15 13:16:48.405 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onStop: 
11-15 13:16:48.405 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onDestroyView: 
11-15 13:16:48.406 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onDestroy: 
11-15 13:16:48.406 3013-3013/cn.edu.npu.fragmenttest D/RightFragment: onDetach: