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[英]AudioToolBox in Swift - Sound works in Simulator but not on my IPad
[英]iOS, no recording sound in my iPad, in the simulator works fine
嗨,我在模拟器中有一个非常奇怪的问题,它可以完美运行,但是当我向iPad充电时,它无法正常工作。 任何想法?
在这里,我创建了所有变量以使其工作。
- (void)viewDidLoad {
[super viewDidLoad];
NSArray *dirPaths;
NSString *docsDir;
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];
NSString *soundFilePath = [docsDir stringByAppendingPathComponent:@"sound.caf"];
NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];
NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:AVAudioQualityMin],
AVEncoderAudioQualityKey,
[NSNumber numberWithInt:16],
AVEncoderBitRateKey,
[NSNumber numberWithInt: 2],
AVNumberOfChannelsKey,
[NSNumber numberWithFloat:44100.0],
AVSampleRateKey,
nil];
NSError *error = nil;
audioRecorder = [[AVAudioRecorder alloc] initWithURL:soundFileURL
settings:recordSettings
error:&error];
if (error)
{
NSLog(@"error: %@", [error localizedDescription]);
} else {
[audioRecorder prepareToRecord];
}
}
我有一些用于记录,播放和停止的按钮。 所以这些是所有代码。
-(void) recordAudio{
if (!audioRecorder.recording){
recordButton.enabled = NO;
playButton.enabled = NO;
saveButton.enabled = NO;
stopButton.enabled = YES;
[audioRecorder record];
}
}
-(void)stop{
recordButton.enabled = YES;
playButton.enabled = YES;
saveButton.enabled = YES;
stopButton.enabled = NO;
if (audioRecorder.recording){
[audioRecorder stop];
}
else if (audioPlayer.playing){
[audioPlayer stop];
}
}
-(void) playAudio{
if (!audioRecorder.recording){
recordButton.enabled = NO;
stopButton.enabled = YES;
saveButton.enabled = NO;
if (audioPlayer)
audioPlayer=nil;
NSError *error;
audioPlayer = [[AVAudioPlayer alloc]
initWithContentsOfURL:audioRecorder.url
error:&error];
audioPlayer.delegate = self;
if (error)
NSLog(@"Error: %@", [error localizedDescription]);
else
[audioPlayer play];
}
}
终于我找到了解决方案。 在我之前的代码中,我在ViewdidLoad中添加了这些行。
AVAudioSession * audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error: &error];
[audioSession setActive:YES error: &error];
对于设置,我添加了以下内容:
[NSNumber numberWithInt:kAudioFormatAppleIMA4], AVFormatIDKey
我从http://www.iphoneam.com/blog/index.php?title=using-the-iphone-to-record-audio-a-guide&more=1&c=1&tb=1&pb=1复制了代码,使用AVAudioSession来自如何在iPhone应用程序中录制和播放声音?
如果您需要完整的代码,请使用此代码。
- (void)viewDidLoad {
[super viewDidLoad];
NSError *error = nil;
AVAudioSession * audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error: &error];
[audioSession setActive:YES error: &error];
playButton.enabled = NO;
stopButton.enabled = NO;
saveButton.enabled = NO;
NSArray *dirPaths;
NSString *docsDir;
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];
docsDir = [HSAudioController pathToDocumentsFolder];
NSString *soundFilePath = [docsDir stringByAppendingPathComponent:@"sound.caf"];
NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];
NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:kAudioFormatAppleIMA4], AVFormatIDKey,
[NSNumber numberWithInt:AVAudioQualityMin], AVEncoderAudioQualityKey,
[NSNumber numberWithInt:16], AVEncoderBitRateKey,
[NSNumber numberWithInt: 2], AVNumberOfChannelsKey,
[NSNumber numberWithFloat:44100.0], AVSampleRateKey,
nil];
audioRecorder = [[AVAudioRecorder alloc] initWithURL:soundFileURL
settings:recordSettings
error:&error];
NSLog(@"%@",audioRecorder.url);
if (error)
{
NSLog(@"error: %@", [error localizedDescription]);
} else {
[audioRecorder prepareToRecord];
}
}
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