fragment lifecycle behaves differently when you have used
"dont keep activities" enabled.
Normal flow of activity with fragment
MainActivity onCreate
Fragment
onAttach
Fragment
onCreate
Fragment
onCreateView
Fragment
onViewCreated
Fragment
onActivityCreated
MainActivity onStart
Fragment
onStart
But when you have enabled "dont keep activities"
and pressed home button then the lifecycle behaves differently as
Fragment onAttach
Fragment
onCreate
MainActivity onCreate
Fragment
onCreateView
Fragment onViewCreated
Fragment
onActivityCreated
MainActivity onStart
Fragment
onStart
So, purely depends upon the logic you have written.
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I have an app that uses fragments. If I enable "dont keep activities", then enter the activity and enter the fragment, then minimize with the Home button and reopen the app the following behavior occurs - the app restores on the open fragment for about half a second, and immediately after that the fragment closes and the main activity for the application shows.
Do I need to perform some sort of restore state for the fragment manager for cases like this? Also, why is the fragment showing at all for half a second and then closing?
code for the MainActivity:
myFragment = (MyFragment) MyFragment.create(id);
getSupportFragmentManager().beginTransaction().setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left, R.anim.slide_in_left, R.anim.slide_out_right)
//.hide(getMainFragment())
.add(R.id.content, MyFragment.create(id), MY_FRAGMENT_TAG)
.addToBackStack(null)
.commit();
setDrawerIndicatorEnabled(false);