手势

最新推荐文章于 2025-03-15 15:14:01 发布

疾风哥哥

最新推荐文章于 2025-03-15 15:14:01 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/qq_18399879/article/details/49963023

本文详细介绍了iOS中常见的手势识别器，包括轻拍、轻扫、捏合、旋转和平移等，并提供了具体的实现代码示例。

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手势

addGestureRecognizer:给视图添加手势，然后再实现@selector( )里的方法

轻拍(tap)

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

//设置轻拍次数(默认1)(按2次好使)

tap.numberOfTapsRequired = 2;

//设置轻拍的手指个数（默认1）

// tap.numberOfTouchesRequired = 2;

轻扫(swipe)

//默认从左往右

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

[imageView addGestureRecognizer:swipe];

//要么上下一起要么左右一起（下面的写法只能执行左右）

swipe.direction = UISwipeGestureRecognizerDirectionDown | UISwipeGestureRecognizerDirectionLeft | UISwipeGestureRecognizerDirectionRight | UISwipeGestureRecognizerDirectionUp;

//设置轻扫手指个数

swipe.numberOfTouchesRequired = 2;

捏合（pinch）

UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinch:)];

[imageView addGestureRecognizer:pinch];

旋转（Rotation）

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

[imageView addGestureRecognizer:rotation];

平移（Pan）

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

[imageView addGestureRecognizer:pan];

长按（LongPress）

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

[imageView addGestureRecognizer:longpress];

//长按时间

longpress.minimumPressDuration = 1;