I'm trying to figure out a way to hold the `ViewMo...

# compose-android

[Oleksandr Katrych]

I'm trying to figure out a way to hold the ViewModel instance while Dialog is shown. One way of doing this is to create some Map which will hold instances of ViewModelStoreOwner and then clear it when onDismissRequest is called.
Is there a better way of doing this?

Edit: I know about https://github.com/sebaslogen/resaca which should work, but trying to find something simple.

private val vmStoreOwnerMap = mutableMapOf<String, ViewModelStoreOwner>()

/**
 * Dialog which holds it's own [ViewModelStoreOwner], which gets cleared
 * after dialog is dismissed.
 */
@Composable
fun ScopedDialog(
    onDismissRequest: () -> Unit,
    properties: DialogProperties = DialogProperties(),
    content: @Composable (ViewModelStoreOwner) -> Unit,
) {
    val vmStoreOwnerKey: String = rememberSaveable { UUID.randomUUID().toString() }
    val vmStoreOwner = vmStoreOwnerMap.getOrPut(vmStoreOwnerKey) {
        object : ViewModelStoreOwner {
            override val viewModelStore: ViewModelStore = ViewModelStore()
        }
    }

    Dialog(
        onDismissRequest = {
            vmStoreOwnerMap[vmStoreOwnerKey]?.viewModelStore?.clear()
            vmStoreOwnerMap.remove(vmStoreOwnerKey)
            onDismissRequest()
        },
        properties = properties,
        content = { content(vmStoreOwner) }
    )
}

[Prateek Kumar]

Untitled

Untitled

[Prateek Kumar]

I use this in my project, but it does not survive config changes

[Prateek Kumar]

It supports passing key and works with hilt as well