Audiostreamer iOS类-ARC错误

Question

I'm trying to implement Matt Gallagher's AudioStreamer class and I'm getting 20+ errors on Audiostream.m file that are basically reading:

Cast of C pointer type 'void *' to Objective-C pointer type 'AudioStreamer *' requires a bridged cast

I'm new to iOS. I know what ARC is, but what does this error mean?

Answer 1

as the error suggests you need a bridged cast . Please read that question for the differences between the available bridged casts. And if you have time watch WWDC 2011 session 323.

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You probably just need something like this:

AudioSessionInitialize (
    NULL,                          // 'NULL' to use the default (main) run loop
    NULL,                          // 'NULL' to use the default run loop mode
    MyAudioSessionInterruptionListener,  // a reference to your interruption callback
    (__bridge void *)(self)                       // data to pass to your interruption listener callback
);