问题
I just put log tags on most activity and fragment methods and this is the result:
06-19 16:33:11.934: I/Fragment Activity:MainMenuPager(15820): onCreate - BEGIN
06-19 16:33:11.958: I/Fragment Activity:MainMenuPager(15820): onCreate - END
06-19 16:33:11.958: I/Fragment Activity:MainMenuPager(15820): onStart - BEGIN
06-19 16:33:11.958: I/Fragment Activity:MainMenuPager(15820): onStart - END
06-19 16:33:11.958: I/Fragment Activity:MainMenuPager(15820): onResume - BEGIN
06-19 16:33:11.958: I/Fragment Activity:MainMenuPager(15820): onResume - END
06-19 16:33:11.973: I/HomeFragment(15820): onAttach- BEGIN
06-19 16:33:11.973: I/HomeFragment(15820): onAttach- BEGIN
06-19 16:33:11.973: I/HomeFragment(15820): onCreate- BEGIN
06-19 16:33:11.973: I/HomeFragment(15820): onCreate- END
06-19 16:33:11.973: I/HomeFragment(15820): onCreateView- BEGIN
06-19 16:33:11.981: I/HomeFragment(15820): onCreateView- END
06-19 16:33:11.989: I/HomeFragment(15820): onActivityCreated- BEGIN
06-19 16:33:11.989: I/HomeFragment(15820): onActivityCreated- END
06-19 16:33:11.989: I/HomeFragment(15820): onStart- BEGIN
06-19 16:33:11.989: I/HomeFragment(15820): onStart- END
06-19 16:33:11.989: I/MyProcessListFragment(15820): onAttach- BEGIN
06-19 16:33:11.989: I/MyProcessListFragment(15820): onAttach- BEGIN
06-19 16:33:11.989: I/MyProcessListFragment(15820): onCreate- BEGIN
06-19 16:33:11.989: I/MyProcessListFragment(15820): onCreate- END
06-19 16:33:11.989: I/MyProcessListFragment(15820): onCreateView- BEGIN
06-19 16:33:12.012: I/MyProcessListFragment(15820): onCreateView- END
06-19 16:33:12.012: I/MyProcessListFragment(15820): onActivityCreated- BEGIN
06-19 16:33:12.012: I/MyProcessListFragment(15820): onActivityCreated- END
06-19 16:33:12.012: I/MyProcessListFragment(15820): onStart- BEGIN
06-19 16:33:12.012: I/MyProcessListFragment(15820): onStart- END
So why all the logged activity methods run all first and then all Fragment ones???should the fragment one's run between the various activity states???
回答1:
Sorry I dont see an issue here. First, you have a pager, and we don't know at one point you set the adapter. Are you setting it in onResume? B/c I'm guessing that would match up with your output.
What kind of output do you see if you embed a <fragment /> in the layout? What kind of output would you see if you add a fragment via FragmentTransaction with-in an onClick listener? These would all have different logging outcomes so the question here is more of a game of "guess how I wrote my code".
来源：https://stackoverflow.com/questions/11104727/so-why-does-my-log-info-shows-completely-wrong-behaviour-between-activity-fragm