AVAudioSession setCategory error
audio, avaudiosession, ios, objective-c
Solution
You should check the return value of `[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&error]`, as it returns `YES` if it succeeded and `NO` if it failed.
Only look at the `error` variable if the return value of `setCategory:error:` is `NO`.
Problem
Trying this: ``` [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&error]; if (error) { NSLog(@"Error setting category: %@", [error description]); } ``` Getting the error back "Error setting category: UIView" but am not sure how to go about fixing this. Not entirely sure what it's telling me. Help please! EDIT Audio Playback: ``` NSURL *audioFileURL = [[NSBundle mainBundle] URLForResource:@"DemoSong" withExtension:@"m4a"]; NSError *error; self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioFileURL error:&error]; if (error) { NSLog(@"%@", [error localizedDescription]); } [_audioPlayer setNumberOfLoops:-1]; [_audioPlayer setMeteringEnabled:YES]; [_visualizer setAudioPlayer:_audioPlayer]; [_audioPlayer prepareToPlay]; [_audioPlayer play]; NSLog(@"play audio"); ```