WebApr 24, 2024 · Both Activity and Fragment implements their own ViewModelStoreOwner interface and implements the getViewModelStore () method. getViewModelStore () provide the ViewModelStore instance which is used to store the viewmodel objects, created by the ViewModelProvider. WebJun 17, 2024 · These fragments can share a ViewModel using their activity scope to handle this communication. By sharing the ViewModel in this way, the fragments do not need to know about each other, and the activity does not need to do anything to facilitate the communication. The following example shows how two fragments can use a shared …
How to pass data that changes real-time from activity to fragment?
WebApr 4, 2024 · 1 Answer. You should modify your viewmodel, activity and fragment. First, for your ViewModel, the ViewModelProvider.Factory is deprecated, so use this instead : class MyViewModel (application: Application): AndroidViewModel (application) { private val repository by lazy { MyRepository.newInstance (application) } val list: LiveData WebJan 23, 2024 · The purpose of viewmodel is to hold UI data, so that it survives across configuration changes. And the reason for the following Caution: A ViewModel must never reference a view, Lifecycle, or any class that may hold a reference to the activity context. Is because the viewmodel survives configuration changes whereas activities don't. breweries west palm beach
java - How to use ViewModel in a fragment? - Stack Overflow
WebApr 10, 2024 · The viewPager has no reference of the new fragment with data. That's why you're getting the NullPointerException. There are several ways to pass data from one activity to another. The most convinient way is to use a common ViewModel class. Here is an example: Create a Common view model class. WebApr 16, 2024 · In the Activity that had the KoinModule loaded, just need to lazily get the ViewModel through getStateViewModel private val viewModel by lazy { getStateViewModel (bundle = intent ... country north of argentina