Questions tagged [viewmodel-savedstate]
The viewmodel-savedstate tag has no usage guidance.
viewmodel-savedstate
40
questions
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18
views
Initialise SavedStateHandle in shared view model
I have a parent fragment and a child fragment which have a shared viewmodel. The viewmodel uses the SavedStateHandle to retain viewmodel state even after process kill. The parent fragment uses shared ...
1
vote
1
answer
73
views
Is it possible to save and extract a savedStateHandle (viewmodel) without using NavHost?
I am using NavigableListDetailPaneScaffold, to show list of items and then it's details when clicked.
The screen is accompanied by its viewModel and I would love to run the fetching code in the ...
- 167
1
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1
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611
views
FATAL EXCEPTION: main java.lang.IllegalArgumentException: CreationExtras must have a value by `SAVED_STATE_REGISTRY_OWNER_KEY`
i hope you can find my text cause i really confused with my project because the app can't installed in emulator. I wish your advice and guidance.
this the Logcat when running the app
FATAL EXCEPTION: ...
- 11
8
votes
1
answer
3k
views
Jetpack Compose Sending Result Back with SavedStateHandle does not work with SavedStateHandle injected in ViewModel
Sending Result Back with SavedStateHandle does not work with SavedStateHandle injected in ViewModel.
Getting result using navController.currentBackStackEntry?.savedStateHandle? it works!
fun ...
- 1,041
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1
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615
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How to create 1 viewmodel with savedstatehandle for multiple chips?
I am trying to understand SavedstateHandle and how I can create 1 viewModel that can store multiple Chips using savedstatehandle. At the moment, whenever the user launches an onClickEvent on one of ...
- 384
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1
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348
views
How to change the model parameter saving location when training with DefaultTrainer in detectron2
my code is like following:
cfg = get_cfg()
...
trainer = DefaultTrainer(cfg)
trainer.resume_or_load(resume=False)
trainer.train()
After training, the model is automatically saved in./output/...
11
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0
answers
668
views
Is SavedStateHandle in ViewModel and currentBackStackEntry the same?
I want to pass some data using savedStateHandle from activity straight to fragment's viewModel.
In my activity I have:
navController.addOnDestinationChangedListener { controller, _, _ ->
...
- 131
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1
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2k
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Re-setting learning rate while training in Pytorch
I am training a model using Learning Rate Scheduler in Pytorch to decrease the value of learning rate. By using learning rate scheduler, I reduced learning rate from 0.0001 to 1e-5, and save all the ...
- 45
0
votes
1
answer
90
views
How to benefit on "warm start" from the saved instance state bundle passed into onCreate() or onRestoreInstanceState()
After reading these Android documents, we feel confused about how to benefit on "warm start issue" from the saved instance state bundle passed into onCreate() or onRestoreInstanceState(().
...
- 509
3
votes
2
answers
5k
views
savedStateHandle not saving State
Following this question I made some simple changes in my app, but it's no working as I expect.
I have a Timer that sends a notification when the timer is done. Clicking this notification restarts the ...
2
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0
answers
715
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How to make viewModel lifecycle work for AndroidX-Lifecycle-viewModel-SavedState (with Jetpack Compose)?
My setup (relevant subset):
Android Gradle Plugin 7.1.2
androidx.lifecycle:lifecycle-viewmodel-savedstate 2.4.1
androidx.activity:activity-compose 1.4.0
androidx.compose.* 1.2.0-alpha04
androidx....
- 2,777
1
vote
1
answer
133
views
How can we combine SavedStateHandler with LiveData Coroutine Builder?
In a typical Android ViewModel, we can easily create a Restorable LiveData using
val liveData = savedStateHandle.getLiveData<String>("SomeKey")
Whenever the liveData value is set, it ...
- 58.5k
0
votes
1
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263
views
Configuration Changes Not Save App State MVVM
I am building a movie app. There is a recyclerview matching parent size,and 1 search action button(SearchView).
When I search for a movie,everything is working fine,but when I change orientation,the ...
- 169
1
vote
1
answer
220
views
How to create a non-nullable LiveData that can save state
When we have a liveData as below, we cannot _liveData.value++, as the value is nullable.
class MainViewModel(savedStateHandle: SavedStateHandle): ViewModel() {
private val _liveData: ...
- 58.5k
1
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0
answers
520
views
Where and how is SavedStateHandle data stored on disk?
When saving part of the UI state using SavedStateHandle, the data in the state is persisted (on disk) on app process death. For various domain/business reasons, this data might contain sensitive ...
- 4,503