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For example an email app might have one activity to show a list of new messages.
Android resume fragment from backstack. With transaction we mean a sequence of steps to add replace or remove fragments. The examples are straight forward but unfortunately they dont cover every aspect of the Android universe. If fragments null fragmentssize0 for Fragment f.
How to resume Fragment from BackStack if exists 4. By this way you can restore the previous state when you press back on fragment B and return to fragment A. Boolean fragmentPopped managerpopBackStackImmediate backStateName 0.
So when you press back from fragment B you will get onResume callback in fragment A. Fragments in Android are many things to different people. If the user presses the Back button.
When a button is pressed a new fragment B is added on backstack and an AsyncTask thread starts in background. FragmentManager manager getSupportFragmentManager. Fragments that are not RESUMED should not manually set focus on their views or attempt to handle input method visibility.
Private void replaceFragment Fragment fragment String backStateName fragmentgetClassgetName. FragmentManager that help us to handle trasaction between fragments. I naturally expected the onPause method of current Fragment and onResume of new Fragment to be called.
FragmentManager manager getSupportFragmentManager. If fmgetBackStackEntryCount 0 fmpopBackStack. String fragmentTag backStateName.
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