– (void)loadView
{
UIView *aView = [[[UIView alloc] initWithFrame:[UIScreen mainScreen].bounds] autorelease];
aView.backgroundColor = [UIColor whiteColor];
self.view = aView;
[aView release];
_imageView=[[UIImageView alloc]initWithFrame:CGRectMake(10, 20, 300, 400)];
_imageView.userInteractionEnabled=YES;
_imageView.image=[UIImage imageNamed:@”h1.jpeg”];
[self.view addSubview:_imageView];
[_imageView release];
/*
//轻触手势(单击,双击)
UITapGestureRecognizer *tapCgr=nil;
tapCgr=[[UITapGestureRecognizer alloc]initWithTarget:self
action:@selector(tap:)];
tapCgr.numberOfTapsRequired=2;
[_imageView addGestureRecognizer:tapCgr];
[tapCgr release];
//长按手势
UILongPressGestureRecognizer *longGnizer=nil;
longGnizer=[[UILongPressGestureRecognizer alloc]initWithTarget:self
action:@selector(longGo:)];
[self.view addGestureRecognizer:longGnizer];
[longGnizer release];
//轻扫手势
UISwipeGestureRecognizer *swi=nil;
swi=[[UISwipeGestureRecognizer alloc]initWithTarget:self
action:@selector(swie:)];
[self.view addGestureRecognizer:swi];
[swi release];
//旋转手势
UIRotationGestureRecognizer *ro=nil;
ro=[[UIRotationGestureRecognizer alloc]initWithTarget:self
action:@selector(roro:)];
[self.view addGestureRecognizer:ro];
[ro release];
//捏合
UIPinchGestureRecognizer *pin=nil;
pin=[[UIPinchGestureRecognizer alloc]initWithTarget:self
action:@selector(pinp:)];
[self.view addGestureRecognizer:pin];
[pin release];
*/
UIPanGestureRecognizer *pan=nil;
pan=[[UIPanGestureRecognizer alloc]initWithTarget:self
action:@selector(panp:)];
[self.view addGestureRecognizer:pan];
[pan release];
}
-(void)panp:(UIPanGestureRecognizer *)agre{
CGPoint beginPoint;
CGPoint endPoint;
if (agre.state==UIGestureRecognizerStateBegan) {
beginPoint=[agre locationInView:_imageView];
}
endPoint=[agre locationInView:_imageView];
CGFloat dx=endPoint.x-beginPoint.x;
CGFloat dy=endPoint.y-beginPoint.y;
_imageView.center=CGPointMake(_imageView.center.x+dx, _imageView.center.y+dy);
}
-(void)pinp:(UIPinchGestureRecognizer *)agre{
_imageView.transform=CGAffineTransformMakeScale(agre.scale, agre.scale);
}
-(void)roro:(UIRotationGestureRecognizer *)ager{
_imageView.transform=CGAffineTransformMakeRotation(ager.rotation);
NSLog(@”%s”,__func__);
}
-(void)swie:(UISwipeGestureRecognizer *)Ager{
_imageView.image=[UIImage imageNamed:@”h2.jpeg”];
NSLog(@”%s”,__func__);
}
-(void)longGo:(UILongPressGestureRecognizer *)aGer{
if (aGer.state==UIGestureRecognizerStateBegan) {
NSLog(@”%s”,__func__);
}
}
-(void)tap:(UITapGestureRecognizer *)aGRer{
NSLog(@”%s”,__func__);
}
五种常用手势
原文作者:五大常用算法
原文地址: https://blog.csdn.net/ylm0302/article/details/13766327
本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。
原文地址: https://blog.csdn.net/ylm0302/article/details/13766327
本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。