flowbinding-android/reactivecircus.flowbinding.android.view/hierarchyChangeEvents

hierarchyChangeEvents

fun ViewGroup.hierarchyChangeEvents(): Flow<HierarchyChangeEvent>

Create a Flow of view group hierarchy change events on the ViewGroup instance where the value emitted is one of the 2 event types: HierarchyChangeEvent.ChildAdded, HierarchyChangeEvent.ChildRemoved

Note: Created flow keeps a strong reference to the ViewGroup instance until the coroutine that launched the flow collector is cancelled.

Example of usage:

viewGroup.hierarchyChangeEvents()
    .onEach { event ->
         when(event) {
             is HierarchyChangeEvent.ChildAdded -> {
                 // handle child added event
             }
             is HierarchyChangeEvent.ChildRemoved -> {
                 // handle child removed event
             }
         }
    }
    .launchIn(uiScope)