小编jpd*_*jpd的帖子

我遇到了找不到文件的错误.

我已经添加了所有必需的文件,但它找不到文件的文件.

#import "MagickWand.h"

对于上面的文件,它给出错误.

#import "FrameSection.h"
#import "FreeCropIphone5.h"
#import "DoodleView.h"

请帮我.

我正在使用此代码来检测打击.

但我不能受到打击.我有声音

 NSURL *url = [NSURL fileURLWithPath:@"/dev/null"];
NSDictionary *settings = [NSDictionary dictionaryWithObjectsAndKeys:

                          [NSNumber numberWithFloat: 44100.0],                 AVSampleRateKey,
                          [NSNumber numberWithInt: kAudioFormatAppleLossless], AVFormatIDKey,
                          [NSNumber numberWithInt: 1],                         AVNumberOfChannelsKey,
                          [NSNumber numberWithInt: AVAudioQualityMax],         AVEncoderAudioQualityKey,
                          nil];

NSError *error;

recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];

if (recorder) {
    [recorder prepareToRecord];
    recorder.meteringEnabled = YES;
    [recorder record];

    levelTimer = [NSTimer scheduledTimerWithTimeInterval: 0.3 target: self selector: @selector(levelTimerCallback:) userInfo: nil repeats: YES];
} else
    NSLog(@"error %@",[error description]);

但声音没有打击.