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iPad用のiOS6アプリを開発しています。ジェスチャ認識（ズーム、ピンチ、パン）を追加するUIImageViewサブクラスを開発しましたが、問題があります。ジェスチャを同時に許可しません。最初は通常のUIImageViewとしてコーディングしましたが、うまく機能しましたが、サブクラスでは機能しません。私のコード：

image.m（UIImageViewサブクラス）

- (id)initWithImage:(UIImage *)image {
self = [super initWithImage:image];

if (self) {

    [self setMultipleTouchEnabled:YES];
    [self setUserInteractionEnabled:YES];

    UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panDetected:)];
    [super addGestureRecognizer:panRecognizer];

    UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchDetected:)];
    [super addGestureRecognizer:pinchRecognizer];

    UIRotationGestureRecognizer *rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationDetected:)];
    [super addGestureRecognizer:rotationRecognizer];

    UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDetected:)];
    tapRecognizer.numberOfTapsRequired = 2;
    [super addGestureRecognizer:tapRecognizer];

    NSLog(@"lkjlkj");
}
return self;}

- (void)panDetected:(UIPanGestureRecognizer *)panRecognizer {
CGPoint translation = [panRecognizer translationInView:self.superview];
CGPoint imageViewPosition = self.center;
imageViewPosition.x += translation.x;
imageViewPosition.y += translation.y;

self.center = imageViewPosition;
[panRecognizer setTranslation:CGPointZero inView: self.superview];}

  - (void)pinchDetected:(UIPinchGestureRecognizer *)pinchRecognizer{    

CGFloat scale = pinchRecognizer.scale;
self.transform = CGAffineTransformScale(self.transform, scale, scale);
pinchRecognizer.scale = 1.0;}

- (void)rotationDetected:(UIRotationGestureRecognizer *)rotationRecognizer{
CGFloat angle = rotationRecognizer.rotation;
self.transform = CGAffineTransformRotate(self.transform, angle);
rotationRecognizer.rotation = 0.0;}

- (void)tapDetected:(UITapGestureRecognizer *)tapRecognizer{
[UIView animateWithDuration:0.25 animations:^{
    self.center = CGPointMake(CGRectGetMidX(self.superview.bounds), CGRectGetMidY(self.superview.bounds));
    self.transform = CGAffineTransformIdentity;
}];}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
return YES;}

viewcontroller.m（複数のジェスチャに同時に応答しない画像からimageviewを作成する場合）

image *img = [[image alloc] initWithImage:imatgetemporal];    
img.center = CGPointMake(525/2, 651/2);


[[self.view viewWithTag:2] addSubview:img];

全てに感謝！！

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1 に答える 1

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UIPanGestureRecognizer同じデリゲートを、、、および宣言した直後にUIPinchGestureRecognizer追加することで解決できると思います。コードは次のようになります。UIRotationGestureRecognizerUITapGestureRecognizer

tapRecognizer.delegate = self;
pinchRecognizer.delegate = self;
rotationRecognizer.delegate = self;
tapRecognizer.delegate = self;

それが役に立てば幸い。

于 2013-02-18T21:09:54.277 に答える