Determining the optimal location for starting and stopping a custom video player

The best practice is to initiate playback (play) in viewDidAppear(_:) and to pause (pause) in viewWillDisappear(_:). This ensures that the video starts when the view is fully visible to the user and stops when the view is about to disappear, preventing unnecessary resource usage when the view is not visible. This approach also handles screen transitions smoothly, avoiding issues like video playback continuing in the background or resource leaks when navigating away from the view.