iphone, how to play sound even in silent or mute mode?

Question

as topic... is it possible ?

Thanks

again, I have attached the code as follows, please check which step is wrong .thanks.

    //@step
AudioS         


        

Answer 1

If you look in the docs under Audio Session Categories, you'll find a number of modes that you can set to tell the system how your app plans to use audio. The default is AVAudioSessionCategorySoloAmbient which tracks the ring/silent switch and the screen lock.

To have your app ignore the ring/silent switch settings, you could try changing the category:

#import 

AudioSessionInitialize (NULL, NULL, NULL, NULL);
AudioSessionSetActive(true);

UInt32 sessionCategory = kAudioSessionCategory_MediaPlayback;
AudioSessionSetProperty (kAudioSessionProperty_AudioCategory, 
                         sizeof(sessionCategory),&sessionCategory);

If you want to allow iPod audio to continue playing in the background, you'll also want to check kAudioSessionProperty_OverrideCategoryMixWithOthers.