init(audioSession:)
Creates a haptic engine from an audio session.
Declaration
init(audioSession: AVAudioSession?) throwsParameters
- audioSession:
The shared audio session, if you’re already using one in your app, to sync with the created engine. For example, pass in Sharedinstance() if you’re using audio from Avaudiosession. Pass in
nilto use default Uikit audio behavior.
Discussion
Create your haptic engine with this initializer if you want the audio behavior of your engine to match other audio APIs in your app. For example, if you’re using AVAudioSession to manage audio elsewhere in your app, then you want to share the session’s sharedInstance(). In this case, the engine mutes and routes audio in accordance with the passed session.
Otherwise, if you don’t pass it a session, it won’t behave the same way as elsewhere in app; audio behaves like UIKit, without syncing to a specific session. You should pass nil when you need the engine only for playing haptics.