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POAVAudioRecorder and AVAudioPlayer
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copied!<p>It's day three and I still can't get playback. I've been following the few tutorials on AVAudioPlayer/AVAudioRecorder. Using NSFileManager it looks like a file is created, but no dice still on that playback.</p> <p>RecorderViewController.m</p> <pre><code>// RecorderViewController.m // AudioTest // #import "RecorderViewController.h" #import <Foundation/Foundation.h> @interface RecorderViewController () @end @implementation RecorderViewController @synthesize userIsRecording, filePath, activityView, recordButton, playButton, recorder; /* - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } */ + (CGRect)makeCGRectWithCenter:(CGPoint)center width:(float)width height:(float)height { return CGRectMake(center.x-width/2, center.y-height/2, width, height); } #pragma mark - Preparation - (void)loadView { // RECORD BUTTON self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; self.recordButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.recordButton.frame = [[self class] makeCGRectWithCenter:CGPointMake(self.view.frame.size.width/2, 100) width:150 height:50]; [self.recordButton setTitle:@"Record" forState:UIControlStateNormal]; [self.recordButton addTarget:self action:@selector(recordPressed) forControlEvents:UIControlEventTouchUpInside]; // PLAY BUTTON self.playButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; self.playButton.frame = [[self class] makeCGRectWithCenter:CGPointMake(self.view.frame.size.width/2, 200) width:150 height:50]; [self.playButton setTitle:@"Play" forState:UIControlStateNormal]; [self.playButton addTarget:self action:@selector(playPressed) forControlEvents:UIControlEventTouchUpInside]; // RETURN BUTTON UIButton *returnButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; returnButton.frame = [[self class] makeCGRectWithCenter:CGPointMake(self.view.frame.size.width/2, 300) width:150 height:50]; [returnButton setTitle:@"Return" forState:UIControlStateNormal]; [returnButton addTarget:self action:@selector(dismissPressed:) forControlEvents:UIControlEventTouchUpInside]; // ACTIVITY self.activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; self.activityView.frame = [[self class] makeCGRectWithCenter:CGPointMake(self.view.frame.size.width/2, 50) width:100 height:100]; [self.view addSubview:self.recordButton]; [self.view addSubview:self.playButton]; [self.view addSubview:returnButton]; [self.view addSubview:self.activityView]; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. NSLog(@"View did load"); filePath = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingPathComponent:@"temp2.caf"]]; // Setup AudioSession AVAudioSession *avSession = [AVAudioSession sharedInstance]; [avSession setCategory:AVAudioSessionCategoryPlayAndRecord error:NULL]; [avSession setActive:YES error: NULL]; self.playButton.hidden = YES; } #pragma mark - Button Actions - (void)dismissPressed:(id)sender { if ([sender isKindOfClass:[UIButton class]]) { NSLog(@"Button class dismissed self"); } else { NSLog(@"Sender is:%@", [sender class]); } [self dismissModalViewControllerAnimated:YES]; } - (void)stopPressed { NSLog(@"Stop Pressed"); [self.recordButton setTitle:@"Record" forState:UIControlStateNormal]; self.userIsRecording = NO; self.playButton.hidden = NO; self.playButton.enabled = YES; [self.activityView stopAnimating]; // } - (void)recordPressed { if (self.userIsRecording) { [self stopPressed]; } else { self.userIsRecording = YES; self.playButton.enabled = NO; self.playButton.hidden = YES; [self.recordButton setTitle:@"Stop" forState:UIControlStateNormal]; [self.activityView startAnimating]; NSDictionary *recorderSettings = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:kAudioFormatLinearPCM], AVFormatIDKey, [NSNumber numberWithInt:AVAudioQualityMin], AVEncoderAudioQualityKey, [NSNumber numberWithInt:16], AVEncoderBitRateKey, [NSNumber numberWithInt: 1], AVNumberOfChannelsKey, [NSNumber numberWithFloat:8000.0], AVSampleRateKey, [NSNumber numberWithInt:8], AVLinearPCMBitDepthKey, nil]; // Clean temp file NSFileManager * fm = [NSFileManager defaultManager]; [fm removeItemAtPath:[self.filePath path] error:NULL]; // Record NSError *error = [NSError alloc]; self.recorder = [[AVAudioRecorder alloc] initWithURL:self.filePath settings:recorderSettings error:&error]; [recorder setDelegate:self]; [recorder prepareToRecord]; if (![recorder record]) { NSLog(@"Recorder FAIL %@", error ); } else { NSLog(@"Recording at %@", [self.filePath absoluteString]); } } } - (void)playPressed { NSFileManager * fm = [NSFileManager defaultManager]; if ([fm fileExistsAtPath:[self.filePath path]]) { NSLog(@"File exists at:%@", [self.filePath path]); NSDictionary *attr = [fm attributesOfItemAtPath:[self.filePath path] error:NULL]; NSLog(@"File attrs:%@", [attr description]); } else { NSLog(@"ERROR: No file exists at:%@", [self.filePath path]); } NSError *error = [[NSError alloc] init]; AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithData:[[NSData alloc] initWithContentsOfURL:self.filePath] error: &error]; [player setDelegate:self]; if (error) { NSLog(@"Player initialization Error: %@", error); } if (!player) { NSLog(@"Player is null!"); } [player prepareToPlay]; if (![player play]) { NSLog(@"Play Error: %@", error); } } #pragma mark - Lifecycle - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. NSLog(@"View did unload"); } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } @end </code></pre>

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