向后导航到先前片段时Android片段过渡

Question

I have 2 fragments the first contains a button which on clicked opens a fragment with a ListView in it. I have a shared element transition for the button to transition into the new fragment (root layout) but I would also like to have this transition in reverse (the list fragment contracts into the button again).

However currently I detect the list item click and send an event to the Activity which pops the listview fragment off the backstack ( popBackStackImmediate() ) hence does not show the transition.

Is there a good way to allow back navigation while preserving reverse transition to work as well?

Answer 1

did you try this:

FragmentManager fm = getSupportFragmentManager();
fm.popBackStack();
fm.executePendingTransactions();

PS: use getSupportFragmentManager() if you're using the support library else use getFragmentManager() .