iOS Question SetAudioSession - Crash app

[Pendrush]

When user click on PLAY in my app, app call

- (void)setAudioSession {
   AVAudioSession *audioSession = [AVAudioSession sharedInstance];
   NSError *err = nil;
   BOOL success = [audioSession setCategory:AVAudioSessionCategoryPlayback error:&err];
   if (success) {
     success = [audioSession setActive:YES error:&err];
   }
   if (!success)
     [NSException raise:@"" format:@"Error setting audio session: %@", err];
}

When user click on STOP app call

- (void)setAudioSessionNo {
   AVAudioSession *audioSession = [AVAudioSession sharedInstance];
   NSError *err = nil;
   BOOL success = [audioSession setCategory:AVAudioSessionCategoryPlayback error:&err];
   if (success) {
     success = [audioSession setActive:NO error:&err];
   }
   if (!success)
     [NSException raise:@"" format:@"Error setting audio session: %@", err]; ' <- line number 3641
}

Only difference between two codes is setActive:YES and setActive:NO


Crash log:
0 CoreFoundation 0x23cf2fea __exceptionPreprocess + 122 (NSException.m:162)
1 libobjc.A.dylib 0x320dec86 objc_exception_throw + 34 (objc-exception.mm:527)
2 CoreFoundation 0x23cf2f30 +[NSException raise:format:] + 108 (NSException.m:140)
3 MyAPP 0xcc74a -[b4i_papp setAudioSessionNo] + 330 (b4i_papp.m:3641)
4 CoreFoundation 0x23cf7660 __invoking___ + 64 (NSForwarding.s:693)
5 CoreFoundation 0x23c22488 -[NSInvocation invoke] + 296 (NSForwarding.m:2699)
6 MyApp 0xe21c8 +[B4I runDynamicMethod:method:throwErrorIfMissing:args:] + 1784
7 MyApp 0xf52a4 -[B4INativeObject RunMethod::] + 160

line 3641 is [NSException raise"" format"Error setting audio session: %@", err];
in second code (setAudioSessionNo)

I'm unable to reproduce error, app crash on iOS 8.0.2 and iOS 8.3

 

[Erel]

This line throws an exception. You need to catch it in your code with a try catch block.