popBackStack() works in Fragment but not from Activity

Question

I am simply closing fragment and going back to previous one by

 getFragmentManager().popBackStack();

And it works, fragment is closed. But when I put the same code in the activity method and call it, then nothing happens.

 ((FragmentRouter)getActivity()).goBack();

And the implementation

@Override
public void goBack() {
    getFragmentManager().popBackStack();
}

How can it be? The code is the same and we are in the same line of event processing.

Which activity class you use? `class extends ` – Vladyslav Matviienko Nov 24 '17 at 11:20 — Vladyslav Matviienko, Nov 24 '17 at 11:20
put your `Activity` class and `Fragment` class – Pritesh - ɐʎıɥpɐΛ ɥsǝʇᴉɹꓒ Nov 24 '17 at 11:22 — Pritesh - ɐʎıɥpɐΛ ɥsǝʇᴉɹꓒ, Nov 24 '17 at 11:22
Please share your code. – IntelliJ Amiya Nov 24 '17 at 11:38 — IntelliJ Amiya, Nov 24 '17 at 11:38

score 1 · Answer 1 · answered Nov 24 '17 at 19:06

1

My fault: of course the two calls of getFragmentManager() are not identical, since they include implicit "this" which is Fragment in one case and Activity in another case.

Works by using:

getSupportFragmentManager().popBackStack()

in Activity

answered Nov 24 '17 at 19:06

Arnie Schwarzvogel

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popBackStack() works in Fragment but not from Activity

1 Answers1