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[英]stretchableImageWithLeftCapWidth:topCapHeight doesn't work in initWithCoder: of UIImageView subclass
[英]UIImageView subclass doesn't work simultaneously gesture
我正在為iPad開發iOs 6應用程序。 我已經開發了UIImageView子類,它添加了手勢識別功能(縮放,捏和平移),但是我有一個問題:它不能同時接受手勢。 我首先將其編碼為普通的UIImageView,並且效果很好,但是現在使用子類則無法。 我的代碼:
image.m(UIImageView子類)
- (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(我從其中無法同時響應多個手勢的圖像創建一個imageview)
image *img = [[image alloc] initWithImage:imatgetemporal];
img.center = CGPointMake(525/2, 651/2);
[[self.view viewWithTag:2] addSubview:img];
謝謝大家!
我想您可以通過在聲明它們之后將相同的委托添加到UIPanGestureRecognizer
, UIPinchGestureRecognizer
, UIRotationGestureRecognizer
和UITapGestureRecognizer
來解決。 代碼如下:
tapRecognizer.delegate = self;
pinchRecognizer.delegate = self;
rotationRecognizer.delegate = self;
tapRecognizer.delegate = self;
希望能幫助到你。
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