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[英]AVAudioRecorder - Continue recording to file after user stops recording by leaving the application and then re-opens it
[英]Re-recording with AVAudioRecorder
我可以使用下面的設置進行錄制-第一次可以運行,但是當我再次嘗試時,文件始終為8192字節,即不是正確的錄制。
-(void) startRecording
{
NSDictionary *settings = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithFloat: 11025.0f], AVSampleRateKey,
[NSNumber numberWithInt: kAudioFormatMPEG4AAC], AVFormatIDKey,
[NSNumber numberWithInt: 2], AVNumberOfChannelsKey,
[NSNumber numberWithInt: AVAudioQualityLow], AVEncoderAudioQualityKey,
nil];
NSString *filenameBasedOnTime = [[NSDate date] description];
if (_recordedFileURL) _recordedFileURL = nil;
_recordedFileURL = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingString:filenameBasedOnTime]];
NSError* error;
if (_audioRecorder) _audioRecorder = nil;
_audioRecorder = [[AVAudioRecorder alloc] initWithURL:_recordedFileURL settings:settings error:&error];
_audioRecorder.delegate = self;
if (error)
{
return;
}
[_audioRecorder prepareToRecord];
_audioRecorder.meteringEnabled = YES;
[_audioRecorder record];
}
-(void) stopRecord
{
[_audioRecorder stop];
}
- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag
{
[self saveRecording];
}
-(void) saveRecording
{
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:_recordedFileURL.relativeString]];
NSLog(@"Recording data size = %i", [data length]);
}
如果有幫助的話,可以在UIPopoverController內部調用它。
自從發現問題是我失蹤了
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:NULL];
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