Covers how and when the lifecycle callback methods like onAttach, onCreateView etc. are being called when the fragment is created, destroyed, recreated or put in the backStack.
Questions tagged [fragment-lifecycle]
150 questions
2
votes
1 answer
API driven app - Nested fragments - where to make API calls ? onStart v/s onCreateView on onResume
My app has a single activity which uses a TabLayout and 1 fragment for each tab's content. Some of these fragments have sub-tabs within and corresponding sub-fragments.
Each of these fragments rely on API calls to render their views. I want these…
letronje
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- 9
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2
votes
1 answer
Pass onActivityResult() data to the same Fragment which is not yet ready
I am using a Fragment to start a new Activity using startActivityForResult(), I am getting the result (Bundle) in onActivityResult() method.Since onActivityResult() called before onResume().I want to make sure, I keep/save the Bundle properly so…
Brijesh Thakur
- 6,768
- 4
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- 29
2
votes
2 answers
What is the purpose of a Fragment bundle if the parent Activity bundle always has the objects that are passed to the Fragment?
I have a model inside an Activity, and a Fragment within this Activity needs access to it. I am currently passing it through the Fragment bundle, but why can't I just access it from the Activity within the fragment?
For example, I would use this…
clocksmith
- 6,226
- 3
- 32
- 45
2
votes
1 answer
Handle onResume() not called when recreating fragment from backstack
I recently started refactoring my Android application by replacing "all" activities with fragments. In the state it is right now, it behaves a lot worse than before...
My problems are in the area of "up navigation", backstack behaviour and general…
Joakim
- 3,224
- 3
- 29
- 53
2
votes
1 answer
onDetach not called for fragment?
I write an code to launch Activity A to Activity B. Both Activity A and B has fragment implementation.
Scenario: If Activity A frequently launch Activity B which contain Fragment, then most of times it missed Fragment.onDetach..I checked with log,…
CoDe
- 11,056
- 14
- 90
- 197
2
votes
1 answer
How should I save state of Fragment that contain a listview on android?
In my app there are two fragments and one activity. On all of them I used listview and fill the content from database. When rotate screen the position of content in activity don't change and start on correct way (as I googled and understand it is…
user3752236
- 57
- 6
2
votes
1 answer
Is Android fragment argument bundle destroyed in any case?
Default Android Studio generated code:
public static Test newInstance(String param1, String param2) {
Test fragment = new Test();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
…
Livy
- 631
- 4
- 15
1
vote
1 answer
After two or more screen rotations, lifecycleScope.launchWhenCreated stops working as expected
I have a code like this:
private val appViewModel: AppViewModel by activityViewModels()
private lateinit var user: User
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// This…
jpegoraro
- 315
- 2
- 10
1
vote
1 answer
How to keep fragment in activity during orientation change?
I have framelayout in activity and two fragments that I need to attach to the activity depending on the user's choise. When I attach one fragment and change orientation, my fragment gest destrotroyed with activity. How to keep the state of fragment…
Bekzhan
- 485
- 5
- 11
1
vote
1 answer
replacement method for onNewIntent() in android fragment
I am developing a NFC app using Fragments. the fragment class will not let me use onNewIntent() for me to be able to make the app scan NFC tags. Is there a replacement function or work around to this issue. below are the methods I am using in the…
SLR
- 45
- 3
1
vote
1 answer
OnDestroyView and OnResume not called after replacing fragments
I am trying to replace fragment B with fragment A. But after replacing, onResume() is never called on Fragment B, though I can interact with it. Also, onDestroyView is never called on Fragment B.
val transform = MaterialContainerTransform()
…
Armen Sarkisyan
- 11
- 2
1
vote
1 answer
Viewpager Fragment 1 onCreateView is not always being called
When I swipe to or select Fragment1 (Fragment Numbers are 0-3) from its adjacent Fragments(0 , 2) in viewPager its onCreateView, or onCreate function is not being called.
But when I swipe back from Fragment3 or select Fragment1 when Fragment3 is…
Rana Hamza
- 11
- 3
1
vote
1 answer
How to detect fragment is idle for some time in android
I want to check that no one has interacted with fragment UI for some time and on the bases of that I want to call a Function/Method inside fragment. Android Studio
Sulman Rasheed
- 92
- 1
- 13
1
vote
2 answers
Explanation needed for - Blank Fragment Java code in Android Studio
I'm working with Bottom Navigation bar in Android Studio
After creating menu and other MainActivity.java codes, Created
fragments for my menu items.
So I Choose the BlankFragment templates in Android Studio.
its creates both .java and .xml file…
Dilshad M
- 13
- 3
1
vote
1 answer
Does adding a new fragment to the backstack pause the current fragment?
I am currently adding a new fragment to the backstack (On top of the current fragment):
val fragmentTransaction = fragmentManager?.beginTransaction()
fragmentTransaction?.add(R.id.cl_my_profile_edit, newFragment)?.addToBackStack(null)
…
Ian
- 324
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- 12