Android: how to end a fragment when transit to another?

Question

Considering I have a navigation view and few fragments associated with it. I wanted to end the fragment when transited to another

For example if Im in fragment A and I click fragment B (or any), The fragment A should get closed or destroyed.

Note: fragmentTransaction.replace(R.id.container, fragment); doesn't work

code for transaction

if(fragment!=null){
            FragmentManager fragmentManager = getSupportFragmentManager();
            FragmentTransaction ft = fragmentManager.beginTransaction();
            ft.replace(R.id.fl, fragment);
            ft.commit();

        }

Possible duplicate of [Remove old Fragment from fragment manager](https://stackoverflow.com/questions/22474584/remove-old-fragment-from-fragment-manager). You should also ensure you are calling `commit()` on your transaction. — Chris Stillwell, Nov 07 '18 at 18:07
@ChrisStillwell they are using replace which isn't working, consider me playing a video in the 1st fragment and when I switch to 2nd the sound still plays in the background. And yes I have added commit() — Kàrthîk ßàlàkrìshña, Nov 07 '18 at 18:13
Ah I see now. Are you using VideoView? If so, call `stopPlayback();` in your Fragment's `onPause()` or `onStop()` callback. — Chris Stillwell, Nov 07 '18 at 18:19
@ChrisStillwell hmm no. I'm using webview in which there is YouTube video — Kàrthîk ßàlàkrìshña, Nov 07 '18 at 18:20

score 0 · Answer 1 · answered Nov 07 '18 at 18:25

0

Based on the comments, you're WebView isn't getting unloaded when your Fragment transitions. To resolve this, call webView.stopLoading(); and webView.destroy(); from either the Fragment's onPause() or onStop() callback. you may also want to wrap both of those calls in a null check just in case webView actually does unload. So your code block will look something like this:

if(webView != null){
    webView.stopLoading();
    webView.destroy();
}

answered Nov 07 '18 at 18:25

Chris Stillwell

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Thank you, I found a new method by trail and error, I'm deleting the fragment stack - 1 before committing – Kàrthîk ßàlàkrìshña Nov 07 '18 at 18:41

score 0 · Answer 2 · answered Nov 07 '18 at 19:19

0

that's easy and handling automatically from android side , just enough after to replace your fragment don't do .addToBackStack(null) and when you go to next fragment , last fragment gone

answered Nov 07 '18 at 19:19

Ardalan Sajedi

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@ArdalanSajediI have added. – Kàrthîk ßàlàkrìshña Nov 07 '18 at 20:21
this code is true and should work correctly why you say it doesn't work – Ardalan Sajedi Nov 07 '18 at 20:26
when I play the video (from YouTube in a webview) and later when I change/switch the fragment (present in navigation) the audio plays in the background. – Kàrthîk ßàlàkrìshña Nov 07 '18 at 20:28
also it was fine if I back press and go back to the same fragment but the problem is that the fragment reloads – Kàrthîk ßàlàkrìshña Nov 07 '18 at 20:33
thats another problem you have two ways first you can use onResume method and write your code when you go to second fragment the video or audio will be stop and use first method to dont come back to web view fragment – Ardalan Sajedi Nov 07 '18 at 20:38
second way is : set tag to your web view when you creat at first and after go to another fragment with thats tag remove web view fragment – Ardalan Sajedi Nov 07 '18 at 20:39
for first way or second ? – Ardalan Sajedi Nov 07 '18 at 21:03
It would help me a lot if you could send for both – Kàrthîk ßàlàkrìshña Nov 07 '18 at 21:04
@Override public void onPause() { super.onPause(); mWebView.onPause(); } use this to the webview fragment and instead of mWebView use name of your webView and for second way use this Fragment fragment = getSupportFragmentManager().findFragmentByTag(TAG_FRAGMENT); if(fragment != null) getSupportFragmentManager().beginTransaction().remove(fragment).commit(); – Ardalan Sajedi Nov 07 '18 at 21:21

Android: how to end a fragment when transit to another?

2 Answers2