iOS UI里面五大手势使用

最新推荐文章于 2025-08-15 16:40:34 发布

原创最新推荐文章于 2025-08-15 16:40:34 发布 · 436 阅读

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#手势

本文深入探讨了iOS开发中的Swift编程语言，包括基础语法、常用框架、性能优化及实战案例解析，帮助开发者提升开发效率与应用质量。

单击

1.1初始化以及使用：

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget：self action：@selector（tapAction：）];

设置点击手指的个数

tap.numberOfTouchesRequired = 1;

// 设置手指点击的个数

tap.numberOfTapsRequired = 1;

[self.view addGestureRecognizer:tap];

点击触发的方法：

- (void) tapAction:(UITapGestureRecognizer *) sender{

// self.view.backgroundColor = [UIColor brownColor];

iamgeView.transform = CGAffineTransformIdentity;

CGPoint point = [sender locationInView:self.view];

[UIView animateWithDuration:0.5 animations:^{

iamgeView.center = point;

}]；

}

1.2 长按

1.2.1：初始化以及使用：

UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]initWithTarget: self action:@selector( longpress: )];

longPress.minimumPressDuration = 0.5;

[self.view addGestureRecognizer: longPress];

长按触发的方法：

- (void) longPress:(UILongPressGestureRecognizer *)longPress

{

// iamgeView.center = CGPointMake(20, 20);

// 获得手势的触摸点

CGPoint point = [longPress locationInView:self.view];

NSLog(@"%f %f",point.x,point.y);

[UIView animateWithDuration:0.2 animations:^{

iamgeView.center = point;

}];

}

拖拽

1.初始化以及使用：

UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget: self action: @selector (panAction:)];

pan.miniNumberOfTouches = 1;

[self.view addGestureRecognizer: pan];

拖拽触发的方法：

- (void) panAction:(UIPanGestureRecognizer *) sender{

// 获取位置信息

CGPoint point = [sender locationInView:self.view]；

iamgeView.center = point;

}

清扫

1.初始化以及使用

UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc]initWithTarget: self action: @selector ( swipe: )];

swipe.direction = UISwipeGestureRecognizerDirectionLeft;

[pan requireGestureRecognizerToFail:swipe];

用来处理拖拽和清扫手势的冲突，判断哪个手势时间段，就让哪个手势先执行

[self.view addGestureRecognizer:swipe];

拖拽触发的方法：

- (void) swipe:(UISwipeGestureRecognizer *)sender{

self.view.frame = CGRectMake(CGRectGetWidth([UIScreen mainScreen].bounds), 0, CGRectGetWidth([UIScreen mainScreen].bounds), CGRectGetHeight([UIScreen mainScreen].bounds));

[UIView animateWithDuration:1 animations:^{

self.view.frame = CGRectMake(0, 0, CGRectGetWidth([UIScreen mainScreen].bounds), CGRectGetHeight([UIScreen mainScreen].bounds));

}];

}

捏合

UIPichGestureRecognizer *pich = [ [UIPichGestureRecognizer alloc] initWithTarget: self action: @selector (pichAction:)];

[self.view addGestureRecognizer：pich];

捏合触发的方法：

- (void) pichAction:(UIPinchGestureRecognizer *)sender{

// 通过手势得到的变化比例让imageView的形态发生改变

iamgeView.transform = CGAffineTransformScale(iamgeView.transform, sender.scale, sender.scale);

}

旋转

1.初始化以及使用：

UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget: self action: @selector(retationAction:)];

[self.view addGestureRecognizer: rotation];

旋转触发的方法：

- (void) rotationAction:(UIRotationGestureRecognizer *)sender{

iamgeView.transform = CGAffineTransformMakeRotation(sender.rotation);

}