Instance Method


Activates or deactivates your app’s audio session using the specified options.


- (BOOL)setActive:(BOOL)active withOptions:(AVAudioSessionSetActiveOptions)options error:(NSError * _Nullable *)outError;



Specify YES to activate your app’s audio session, or NO to deactivate it.


An integer bit mask containing one or more constants from the AVAudioSessionSetActiveOptions enumeration.


On input, a pointer to an error object. If an error occurs, the pointer is set to an NSError object that describes the error. If you do not want error information, pass in nil.

Return Value

YES if the session’s active state was changed successfully, or NO if it was not.


If another active audio session has higher priority than yours (for example, a phone call), and neither audio session allows mixing, attempting to activate your audio session fails. Deactivating an audio session that has running audio objects will stop the running audio objects, deactivate the session, and a AVAudioSessionErrorCodeIsBusy error will be returned.


Data Types


A flag that provides additional information about your app’s audio intentions upon session deactivation.

See Also

Activating the Audio Session

- setActive:error:

Activates or deactivates your app’s audio session.

- activateWithOptions:completionHandler:

Asynchronously activates an audio session on watchOS.