标签：手势的6种使用方法
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(20, 30, 280, 430)];
imageView.image = [UIImage imageNamed:@"2.jpg"];
//将用户交互打开，，切记 只有两个UIImage 和UILabel 都要打开交互
[imageView setUserInteractionEnabled:YES];
[self.view addSubview:imageView];
[imageView release];
/*
//手势使用 看继承关系，，，有没有自己的初始化方法
//1.点击
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)];
//1.1设置要点击几次才会触发方法
tap.numberOfTapsRequired = 3;
//1.2需要几个手指点击
tap.numberOfTouchesRequired = 2;
//1.3将手势添加到imageView上
[imageView addGestureRecognizer:tap];
[tap release];
*/
/*
//2.长按
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressAction:)];
//1.1判定为长按手势需要的最短时间
longPress.minimumPressDuration = 3;
//1.2判定为长按的过程中，允许用户手指移动的距离
longPress.allowableMovement = 300;
[imageView addGestureRecognizer:longPress];
[longPress release];
*/
/*
//3.旋转
UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationAction:)];
[imageView addGestureRecognizer:rotation];
[rotation release];
*/
/*
//4.捏合
UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchAction:)];
[imageView addGestureRecognizer:pinch];
[pinch release];
*/
/*
//5.拖拽
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panAction:)];
[imageView addGestureRecognizer:pan];
[pan release];
*/
//6.清扫
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(awipeAction:)];
[imageView addGestureRecognizer:swipe];
//清扫的方向，向左 （如果要四个方向，就只能加四个手势）
swipe.direction = UISwipeGestureRecognizerDirectionLeft;
[swipe release];
}
//6.清扫
- (void)awipeAction:(UISwipeGestureRecognizer *)awipe
{
if (awipe.direction == UISwipeGestureRecognizerDirectionLeft) {
NSLog(@"向左");
}
NSLog(@"清扫");
}
//5.拖拽
- (void)panAction:(UIPanGestureRecognizer *)pan
{
UIImageView *view = (UIImageView *)pan.view;
//获得手势经过的点
CGPoint p = [pan translationInView:view];
//对视图的transform属性改变
view.transform = CGAffineTransformTranslate(view.transform, p.x, p.y);
//对拖拽的位置进行初始化
[pan setTranslation:CGPointZero inView:view];
// NSLog(@"拖拽");
}
//4.捏合
-(void)pinchAction:(UIPinchGestureRecognizer *)pinch
{
//试图的TRanform属性
UIImageView *view = (UIImageView *)pinch.view;
//捏合的x，y的方向
// view.transform = CGAffineTransformMakeScale(pinch.scale, pinch.scale); //捏合后重置
//在原有的基础上在捏合
view.transform = CGAffineTransformScale(view.transform, pinch.scale, pinch.scale);
pinch.scale = 1;
NSLog(@"捏合");
}
//3.旋转
- (void)rotationAction:(UIRotationGestureRecognizer *)rotation
{
//视图的transform属性－－－变形
//1.获得添加手势的视图
UIImageView *imageView = (UIImageView *)rotation.view;
//2.旋转的角度 (属性，角度)
imageView.transform = CGAffineTransformRotate(imageView.transform, rotation.rotation);
rotation.rotation = 0;
// NSLog(@"旋转");
}
//2.长按
- (void)longPressAction:(UILongPressGestureRecognizer *)longPress
{
//长按的方法在手势的各个状态都会触发，所以需要进行判断
// longPress.state
if (longPress .state == UIGestureRecognizerStateBegan) {
NSLog(@"长按开始喽噢！！");
}else if (longPress.state == UIGestureRecognizerStateEnded){
NSLog(@"长按结束了呢！！");
}
}
//1.点击点击手势，的触发方法
- (void)tapAction:(UITapGestureRecognizer *)tap
{
NSLog(@"快看，那是个塔！");
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}本文出自 “小刘_Blog” 博客，请务必保留此出处http://liuyafang.blog.51cto.com/8837978/1548157
标签：手势的6种使用方法
原文地址：http://liuyafang.blog.51cto.com/8837978/1548157
