Ios MjpegView未响应UITapGestureRecognitor

我有从下载的MjpegView（在MJPEGiPhone项目中，它被命名为MJPEGClient，我将其重命名为MjpegView以便于理解其功能）

基本上，MjpegView是UIImageView的扩展，并使用NSUrlConnection从url获取mjpeg图像。我将UITapGestureRecognitor添加到MjpegView，但当我点击时它没有响应

MjpegView的代码片段如下：

@interface MjpegView : UIImageView
@end

@implementation MjpegView

- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];

    if (self) {

        if (_endMarkerData == nil) {
            uint8_t endMarker[2] = END_MARKER_BYTES;
            _endMarkerData = [[NSData alloc] initWithBytes:endMarker length:2];
        }

        self.contentMode = UIViewContentModeScaleAspectFit;

        singleTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onSingleTap:)];
        singleTapRecognizer.numberOfTapsRequired = 1;
        singleTapRecognizer.numberOfTouchesRequired = 1;

        [self addGestureRecognizer:singleTapRecognizer];

       [[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:_url] delegate:self];
    }

    return self;
}


#pragma mark - NSURLConnection Delegate Methods

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
    //NSLog(@"didReceiveResponse");

    if (_receivedData) {
        [_receivedData release];
    }

    _receivedData = [[NSMutableData alloc] init];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    //NSLog(@"didReceiveData");

    [_receivedData appendData:data];

    NSRange endRange = [_receivedData rangeOfData:_endMarkerData 
                                          options:0 
                                            range:NSMakeRange(0, _receivedData.length)];

    long long endLocation = endRange.location + endRange.length;
    if (_receivedData.length >= endLocation) {
        NSData *imageData = [_receivedData subdataWithRange:NSMakeRange(0, endLocation)];
        UIImage *receivedImage = [UIImage imageWithData:imageData];
        if (receivedImage) {
            self.image = receivedImage;
        }
    }
}

@end

---

我怀疑这是因为主线程正忙于用mpjeg图像更新视图，因此无法检测到点击。有人对如何实现这一点有建议吗？

默认情况下，

UIImageView

has

userInteractionEnabled

为false

设置属性

userInteractionEnabled=YES

试试这个

@implementation MjpegView

- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];

    if (self) {

        if (_endMarkerData == nil) {
            uint8_t endMarker[2] = END_MARKER_BYTES;
            _endMarkerData = [[NSData alloc] initWithBytes:endMarker length:2];
        }

        self.contentMode = UIViewContentModeScaleAspectFit;
        self.userInteractionEnabled=YES;

        singleTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onSingleTap:)];
        singleTapRecognizer.numberOfTapsRequired = 1;
        singleTapRecognizer.numberOfTouchesRequired = 1;

        [self addGestureRecognizer:singleTapRecognizer];

       [[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:_url] delegate:self];
    }

    return self;
}

---

您在何处将UITapGestureRecognitor添加到视图中？ops我在这里错过了它，已经编辑了我的问题。这是我在这里犯的一个简单的错误。我以为是代表们造成的。很高兴帮助你……）