MPPlayerView prevents AVAudioSessionRouteChange notifications

Originator:arobinson
Number:rdar://35432156 Date Originated:2017-11-09
Status:Closed Resolved:
Product:iOS + SDK Product Version:iOS 11.2 (15C5097d)
Classification: Reproducible:Always
 
Area:
Media Player Framework

Summary:

Initializing an MPVolumeView appears to prevent AVAudioSessionRouteChange notifications from being posted.


Steps to Reproduce:

See attached project for a working sample.

1. Initialize an MPVolumeView as a stored property.
2. Add an observer for AVAudioSessionRouteChange notifications.
3. Change the route on the device (for example by plugging in a set of headphones)


Expected Results:

An AVAudioSessionRouteChange notification should be received.


Actual Results:

The notification is not received. Route change events are not received for any route changes, whether bluetooth or physical audio connections.


Version/Build:

iOS 11.2 (15C5097d)


Configuration:

iPhone SE, iPhone 7 Plus, and iPhone X running iOS 11.2 (15C5097d).

Comments

This is resolved in iOS 11.2 beta 3 (15C5107a).

By arobinson at Nov. 13, 2017, 11:24 p.m. (reply...)

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