activity和fragment的生命周期交叉

启动:
E/BlankFragment: ---------------------->onAttach
E/BlankFragment: ---------------------->onCreate
E/BlankFragment: ---------------------->onCreateView
E/BlankFragment: ---------------------->onViewCreated
E/MainActivity: ----------------------> onCreate
E/BlankFragment: ---------------------->onActivityCreated
E/BlankFragment: ---------------------->onStart
E/MainActivity: ----------------------> onStart
E/MainActivity: ----------------------> onResume
E/BlankFragment: ---------------------->onResume

Home:
E/BlankFragment: ---------------------->onPause
E/MainActivity: ----------------------> onPause
E/BlankFragment: ---------------------->onSaveInstanceState
E/BlankFragment: ---------------------->onStop
E/MainActivity: ----------------------> onStop

重新开启:
E/MainActivity: ----------------------> onRestart
E/BlankFragment: ---------------------->onStart
E/MainActivity: ----------------------> onStart
E/MainActivity: ----------------------> onResume
E/BlankFragment: ---------------------->onResume

退出:
E/BlankFragment: ---------------------->onPause
E/MainActivity: ----------------------> onPause
E/BlankFragment: ---------------------->onStop
E/MainActivity: ----------------------> onStop
E/BlankFragment: ---------------------->onDestroyView
E/BlankFragment: ---------------------->onDestroy
E/BlankFragment: ---------------------->onDetach
E/MainActivity: ----------------------> onDestroy