六種手勢(shì)如下:

UITapGestureRecognizer

[UIPinchGestureRecognizer]（捏合)

[UIRotationGestureRecognizer]（旋轉(zhuǎn)）

([UISwipeGestureRecognizer]滑動(dòng)，快速移動(dòng)）

[UIPanGestureRecognizer]（平移，慢速移動(dòng)）

[UILongPressGestureRecognizer]（長(zhǎng)按）

以上六種只是常用的一些手勢(shì),在這里作此簡(jiǎn)述

創(chuàng)建圖片對(duì)象

// 創(chuàng)建圖片對(duì)象

UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 100, 100)];

// 設(shè)置圖片內(nèi)容

imageView.image = [UIImage imageNamed:@“自己圖片名”];

// 設(shè)置圖片居中

imageView.center = self.view.center;

// 設(shè)置用戶交互

imageView.userInteractionEnabled = YES;

// 添加到視圖上

[self.view addSubview:imageView];
UITapGestureRecognizer (點(diǎn)擊手勢(shì))

//1.創(chuàng)建手勢(shì)對(duì)象

UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapClick:)];

//2.手勢(shì)相關(guān)的屬性

//點(diǎn)擊次數(shù)（默認(rèn)1）

tapGesture.numberOfTapsRequired = 1;

//手指的個(gè)數(shù)（默認(rèn)1）

tapGesture.numberOfTouchesRequired = 1;

//3.把手勢(shì)與視圖相關(guān)聯(lián)

[imageView addGestureRecognizer:tapGesture];
// 點(diǎn)擊事件

-(void)tapClick:(UITapGestureRecognizer *)tap{

NSLog(@“點(diǎn)擊圖片了”);

}
UIPinchGestureRecognizer (捏合手勢(shì))

//捏合手勢(shì)

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

[imageView addGestureRecognizer:pinchGesture];

// 捏合事件

-(void)pichClick:(UIPinchGestureRecognizer *)pinch{

//縮放的系數(shù)

NSLog(@"%.2lf",pinch.scale);

//固定寫法

pinch.view.transform = CGAffineTransformScale(pinch.view.transform, pinch.scale, pinch.scale);

//重置縮放系數(shù)（否則系數(shù)會(huì)累加）

pinch.scale = 1.0;

}
UIRotationGestureRecognizer (旋轉(zhuǎn)手勢(shì))

//旋轉(zhuǎn)手勢(shì)

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

[imageView addGestureRecognizer:rotationGesture];

-(void)rotationClick:(UIRotationGestureRecognizer *)rotation{

NSLog(@“qqq”);

}
UISwipeGestureRecognizer (滑動(dòng)手勢(shì))

// 滑動(dòng)手勢(shì)

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

// 設(shè)置輕掃的方向

leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;

[self.view addGestureRecognizer:leftSwipe];

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

// 右掃

rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;

[self.view addGestureRecognizer:rightSwipe];

// 滑動(dòng)事件

-(void)swipeClick:(UISwipeGestureRecognizer *)swpie{

// 如果是左掃

if (swpie.direction == UISwipeGestureRecognizerDirectionLeft ) {

NSLog(@“左掃!”);

}else{

NSLog(@“右掃!”);

}
}

UIPanGestureRecognizer (平移手勢(shì))

//平移手勢(shì)

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

[imageView addGestureRecognizer:panGesture];

// 平移事件

-(void)panClick:(UIPanGestureRecognizer *)pan{

NSLog(@“響應(yīng)了。。。”);

//通過pan手勢(shì)，能夠獲取到pan.view在self.view上的偏移量

CGPoint point = [pan translationInView:self.view];

NSLog(@“x=%.2lf y=%.2lf”,point.x,point.y);

//改變中心點(diǎn)坐標(biāo)（原來的中心點(diǎn)+偏移量=當(dāng)前的中心點(diǎn)）

CGPoint newCenter = CGPointMake(pan.view.center.x + point.x, pan.view.center.y + point.y);

// CGPointZero<==>CGPointMake(0,0)

//限制拖動(dòng)范圍

newCenter.y = MAX(pan.view.frame.size.height/2, newCenter.y);

newCenter.y = MIN(self.view.frame.size.height - pan.view.frame.size.height/2, newCenter.y);

newCenter.x = MAX(pan.view.frame.size.width/2, newCenter.x);

newCenter.x = MIN(self.view.frame.size.width - pan.view.frame.size.width/2, newCenter.x);

pan.view.center = newCenter;

//每次調(diào)用之后，需要重置手勢(shì)的偏移量，否則偏移量會(huì)自動(dòng)累加

[pan setTranslation:CGPointZero inView:self.view];

}
UILongPressGestureRecognizer (長(zhǎng)按手勢(shì))

//長(zhǎng)按手勢(shì)

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

//用幾個(gè)手指觸屏，默認(rèn)1

longPressGesture.numberOfTouchesRequired = 1;

//設(shè)置最短長(zhǎng)按時(shí)間，單位為秒（默認(rèn)0.5）

longPressGesture.minimumPressDuration = 1;

//設(shè)置手勢(shì)識(shí)別期間所允許的手勢(shì)可移動(dòng)范圍

longPressGesture.allowableMovement = 10;

[imageView addGestureRecognizer:longPressGesture];

// 長(zhǎng)按事件

-(void)longPressClick:(UILongPressGestureRecognizer *)press{

//state屬性是所有手勢(shì)父類提供的方法，用于記錄手勢(shì)的狀態(tài)

if(press.state == UIGestureRecognizerStateBegan){

NSLog(@“長(zhǎng)按手勢(shì)開始響應(yīng)!”);

}else if (press.state == UIGestureRecognizerStateChanged){

NSLog(@“長(zhǎng)按手勢(shì)狀態(tài)發(fā)生改變!”);

}else{

NSLog(@“長(zhǎng)按手勢(shì)結(jié)束!”);

}
}

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