Unexpected Behavior with ViewModel Scope and Coroutine Cancellation in Jetpack Compose on Android 14
I'm not sure how to approach I'm getting frustrated with I'm upgrading from an older version and I'm prototyping a solution and This might be a silly question, but I've been banging my head against this for hours..... I am encountering unexpected behavior when using ViewModel scope with coroutines in my Jetpack Compose application on Android 14. Specifically, I have a situation where I launch a coroutine in my ViewModel to fetch data from an API, but I notice that the coroutine does not seem to cancel as expected when the associated Composable is removed from the composition. My ViewModel looks something like this: ```kotlin class MyViewModel : ViewModel() { private val _data = MutableLiveData<List<MyData>>() val data: LiveData<List<MyData>> get() = _data fun fetchData() { viewModelScope.launch { val response = apiService.getData() // Assume this is a suspend function _data.postValue(response) } } } ``` In my Composable, I am calling `fetchData()` when the UI is first displayed: ```kotlin @Composable fun MyScreen(viewModel: MyViewModel) { LaunchedEffect(Unit) { viewModel.fetchData() } // UI components to display data } ``` However, when I navigate away from this screen, it seems like the coroutine does not cancel immediately. Sometimes, I receive the API response after navigating away, which leads to updates on the UI that are no longer visible. I have also observed the following warning in the logcat: ``` CoroutineScope is not active, please check the job state ``` I’ve tried wrapping my API call in a try-catch block to handle any exceptions and also verified that the ViewModel is correctly scoped to the lifecycle of the Composable. I was expecting the coroutine to cancel when the Composable disappears. Should I be using another mechanism to ensure that the coroutine is properly canceled when the Composable is removed? Or is there a better way to handle this situation? Any insights or suggestions would be greatly appreciated! For context: I'm using Kotlin on macOS. I'd really appreciate any guidance on this. For context: I'm using Kotlin on Windows. Is there a better approach? How would you solve this? I recently upgraded to Kotlin latest. Is this even possible? I'm developing on CentOS with Kotlin. Has anyone dealt with something similar? How would you solve this?