找不到 iPhone 模拟器生成的文件

Question

如果这与我之前的问题重复，但这让我有点抓狂。

在尝试找出 iPhone 模拟器存储文件的位置时，我使用 Speak Here 项目来录制我的声音并将其保存到文件中。由于模拟器能够播放录音，所以一定在某个地方有一个文件，但我不可能找到它。我已经尝试了一切，包括使用终端命令locate（使用sudo /usr/libexec/locate.updatedb之后）。有什么帮助吗？

Answer 1

SpeakHere 应用程序将录制的文件存储在临时目录中。您可以使用以下代码找出路径及其内容：

    NSString *tempPath = NSTemporaryDirectory();
    NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:tempPath error:nil];
    NSLog(@"tempPath: %@", tempPath);
    NSLog(@"dirContents: %@", dirContents);

在 iOS 模拟器中，此路径将类似于
/var/folders/eQ/eQdXXQoxFHmxhq85pgNA+++++TI/-Tmp-/ 但在设备上，这是应用程序目录中的子目录。例如/private/var/mobile/Applications/965A9EEF-7FBA-40F4-8A42-FE855A719D52/tmp/。

Answer 2

#define DOCUMENTS_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]

-(void) startRecording
{
[自动停止播放]；

NSLog(@"startRecording");
[audioRecorder release];
audioRecorder = nil;

// Init audio with record capability
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryRecord error:nil];

NSMutableDictionary *recordSettings = [[NSMutableDictionary alloc] initWithCapacity:10];
if(recordEncoding == ENC_PCM)
{
    [recordSettings setObject:[NSNumber numberWithInt: kAudioFormatLinearPCM] forKey: AVFormatIDKey];
    [recordSettings setObject:[NSNumber numberWithFloat:44100.0] forKey: AVSampleRateKey];
    [recordSettings setObject:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
    [recordSettings setObject:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    [recordSettings setObject:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
    [recordSettings setObject:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];   
}
else
{
    NSNumber *formatObject;

    switch (recordEncoding) {
        case (ENC_AAC): 
            formatObject = [NSNumber numberWithInt: kAudioFormatMPEG4AAC];
            break;
        case (ENC_ALAC):
            formatObject = [NSNumber numberWithInt: kAudioFormatAppleLossless];
            break;
        case (ENC_IMA4):
            formatObject = [NSNumber numberWithInt: kAudioFormatAppleIMA4];
            break;
        case (ENC_ILBC):
            formatObject = [NSNumber numberWithInt: kAudioFormatiLBC];
            break;
        case (ENC_ULAW):
            formatObject = [NSNumber numberWithInt: kAudioFormatULaw];
            break;
        default:
            formatObject = [NSNumber numberWithInt: kAudioFormatAppleIMA4];
    }

    [recordSettings setObject:formatObject forKey: AVFormatIDKey];
    [recordSettings setObject:[NSNumber numberWithFloat:44100.0] forKey: AVSampleRateKey];
    [recordSettings setObject:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
    [recordSettings setObject:[NSNumber numberWithInt:12800] forKey:AVEncoderBitRateKey];
    [recordSettings setObject:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    [recordSettings setObject:[NSNumber numberWithInt: AVAudioQualityHigh] forKey: AVEncoderAudioQualityKey];
}

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
// getting an NSInteger
NSInteger recordID = [prefs integerForKey:@"recordID"];
//NSLog(@"---- %d",recordID);

//NSString *recordFileName = [NSString stringWithFormat:@"%@/record%d.caf", [[NSBundle mainBundle] resourcePath], recordID];
NSString *recordFileName = [NSString stringWithFormat:@"%@/record%d.caf", DOCUMENTS_FOLDER, recordID];

NSURL *url = [NSURL fileURLWithPath:recordFileName];

//NSLog(@"path -- %@",DOCUMENTS_FOLDER);

NSError *error = nil;
audioRecorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSettings error:&error];

if ([audioRecorder prepareToRecord] == YES){
    [audioRecorder record];
}else {
    int errorCode = CFSwapInt32HostToBig ([error code]); 
    NSLog(@"Error: %@ [%4.4s])" , [error localizedDescription], (char*)&errorCode);
}
NSLog(@"recording");

[recordSettings release];

}

-(void) 停止录音
{
NSLog(@"停止录音");
[录音机停止]；
NSLog(@"已停止");
}