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sandy taylor
sandy taylor

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Posted on    November-16-2014 11:02 PM

 Android Android 
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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);



Maria Susan

Total Post:29

Points:107
Posted on    November-17-2014 3:05 AM

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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