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#import"ViewController.h"
@interfaceViewController ()
/**图片*/
@property(nonatomic,weak)IBOutletUIImageView *imageView;
@end
@implementationViewController
- (void)viewDidLoad {
[superviewDidLoad];
self.imageView.userInteractionEnabled =YES;
[selfsetUpTap];
[selfsetUpLongPress];
[selfsetUpSwipe];
[selfsetUpRotation];
[selfsetPinch];
[selfsetPan];
}
/*------------长按手势----------------*/
- (void)setUpTap {
//创建点击事件
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:selfaction:@selector(tap)];
tap.delegate =self;
[self.imageView addGestureRecognizer:tap];
}
//点击事件
- (void)tap {
NSLog(@"%s",__func__);
}
/*------------长按手势----------------*/
- (void)setUpLongPress {
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:selfaction:@selector(longPress:)];
longPress.delegate =self;
[self.imageView addGestureRecognizer:longPress];
}
//长按手势事件
- (void)longPress:(UILongPressGestureRecognizer *)sender {
//注意：长安手势可以触发两次事件，我们需要判断手势状态，如下
if(sender.state == UIGestureRecognizerStateEnded) {
NSLog(@"%s",__func__);
}
}
/*------------轻扫手势----------------*/
- (void)setUpSwipe {
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:selfaction:@selector(swipe:)];
swipe.delegate =self;
//注意：如果以后想要一个控件支持多个方向的清扫，必须创建多个清扫手势，一个清扫手势只能支持一个方向
//默认清扫手势的方向是向右
swipe.direction = UISwipeGestureRecognizerDirectionRight;
[self.imageView addGestureRecognizer:swipe];
}
//轻扫手势事件
- (void)swipe:(UISwipeGestureRecognizer *)sender {
NSLog(@"%s",__func__);
}
/*------------旋转手势----------------*/
- (void)setUpRotation {
UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:selfaction:@selector(rotation:)];
rotation.delegate =self;
[self.imageView addGestureRecognizer:rotation];
}
//旋转手势事件
- (void)rotation:(UIRotationGestureRecognizer *)sender {
//注意：手势传递的旋转角度都是相对于最开始的位置
CGFloat rotation = sender.rotation;
self.imageView.transform = CGAffineTransformRotate(self.imageView.transform, rotation);
//复位
sender.rotation =0;
NSLog(@"%s",__func__);
}
/*------------捏合手势----------------*/
- (void)setPinch {
UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:selfaction:@selector(pinch:)];
pinch.delegate =self;
[self.imageView addGestureRecognizer:pinch];
}
//捏合手势事件
- (void)pinch:(UIPinchGestureRecognizer *)sender {
CGFloat scale = sender.scale;
self.imageView.transform = CGAffineTransformScale(self.imageView.transform, scale, scale);
//复位
sender.scale =1.0;
NSLog(@"%s",__func__);
}
/*------------拖拽手势----------------*/
- (void)setPan {
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:selfaction:@selector(pan:)];
pan.delegate =self;
[self.imageView addGestureRecognizer:pan];
}
//拖拽手势事件
- (void)pan:(UIPanGestureRecognizer *)sender {
//获取手势的移动，也是相对于最开始的位置
CGPoint transP = [sender translationInView:self.imageView];
self.imageView.transform = CGAffineTransformTranslate(self.imageView.transform, transP.x, transP.y);
//复位
[sender setTranslation:CGPointZero inView:self.imageView];
NSLog(@"%s",__func__);
}
#pragma mark -
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
returnYES;
}
//是否允许同时支持多个手势，默认不支持多个手势
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
returnYES;
}
//是否可以接收手指的触摸点(touch)
//实例:该方法可以控制让一个视图，左边能点击，右边不能点击
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
CGPoint currentPoint = [touch locationInView:self.imageView];
if(currentPoint.x >self.imageView.bounds.size.width *0.5) {
returnYES;
}
returnNO;
}
@end
谢谢!!!
