IMPORTANT: As of iOS 11, do not use the CAInterAppAudioSwitcherView since it has bugs that make
assertiond complain and eventually crash, bringing down the whole iOS device to a reset!
Some have been wondering how I did the IAA node panel UI in my AUFX apps, shown when tapping the host icon while connected to a host.
Instead of just switching to the host, it shows a popup with icons for all nodes currently hosted in the same host, allowing easy switching between them.
Even though I’ve found no API to get such a list of sibling IAA nodes, there’s a public built-in UIView subclass in
CoreAudioKit that shows this panel:
It’s that simple. Just create an instance of this view, set the corresponding audio unit, and add it to some container view:
CAInterAppAudioSwitcherView *v = [[CAInterAppAudioSwitcherView alloc] initWithFrame:CGRectMake(0, 0, width, 80)]; [v setOutputAudioUnit:myAudioEngine.audioUnit]; [containerView addSubview:v];