几种手势操作的最基本实现

工作太忙，有点懒，直接上代码了。

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

/*

 UITapGestureRecognizer         Tap（点击）

 UIPinchGestureRecognizer       Pinch（捏合）

 UIRotationGestureRecognizer    Rotation（旋转）

 UISwipeGestureRecognizer       Swipe（滑动，快速移动，是用于监测滑动的方向的）

 UIPanGestureRecognizer         Pan （拖移，慢速移动，是用于监测偏移的量的）

 UILongPressGestureRecognizer   LongPress（长按）

 */

- (void)viewDidLoad

{

    [superviewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

    

    UIButton *btn = [UIButtonbuttonWithType:UIButtonTypeRoundedRect];

    [btnsetFrame:CGRectMake(50,50, 100, 100)];

    [btn setBackgroundImage:[UIImageimageNamed:@"1.png"]forState:UIControlStateNormal];

    // 拖移的 Recognizer

   UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizeralloc]initWithTarget:self                                              action:@selector(handlePan:)];

    [btnaddGestureRecognizer:panGestureRecognizer];

    

    

   UIView *tapView = [[UIViewalloc] initWithFrame:CGRectMake(10,50, 300, 300)];

    [tapView setBackgroundColor:[UIColorredColor]];

    // 单击的 Recognizer

   UITapGestureRecognizer* singleRecognizer;

    singleRecognizer = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(SingleTap:)];

    //点击的次数

    singleRecognizer.numberOfTapsRequired =1; // 单击

    //点击的手指数

    singleRecognizer.numberOfTouchesRequired =2;

    

    //给view添加一个手势监测；

    [tapViewaddGestureRecognizer:singleRecognizer];

    

    

    // 双击的 Recognizer

   UITapGestureRecognizer* doubleRecognizer;

    doubleRecognizer = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(DoubleTap:)];

    doubleRecognizer.numberOfTapsRequired =2; // 双击

    //关键语句，给self.view添加一个手势监测；

    [tapViewaddGestureRecognizer:doubleRecognizer];

    

    //关键在这一行，双击手势确定监测失败才会触发单击手势的相应操作

    [singleRecognizerrequireGestureRecognizerToFail:doubleRecognizer];

    

    // 捏合的 Recognizer

   UIPinchGestureRecognizer *pinchGestureRecognizer = [[UIPinchGestureRecognizeralloc] initWithTarget:selfaction:@selector(handlePinch:)];

    [tapViewaddGestureRecognizer:pinchGestureRecognizer];

    

    // 旋转的 Recognizer

    UIRotationGestureRecognizer *rotateRecognizer = [[UIRotationGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleRotate:)];

    [tapViewaddGestureRecognizer:rotateRecognizer];

    

    // 长按的 Recognizer

   UILongPressGestureRecognizer *longPressRecognizer = [[UILongPressGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleLongPress:)];

    //设置长按时间间隔

    [longPressRecognizersetMinimumPressDuration:1.0];

    [tapViewaddGestureRecognizer:longPressRecognizer];

    

    // 滑动的 Recognizer

   UISwipeGestureRecognizer *swipeRecognizer = [[UISwipeGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleSwipe:)];

    //设置滑动方向

    [swipeRecognizer setDirection:UISwipeGestureRecognizerDirectionDown];

    [tapViewaddGestureRecognizer:swipeRecognizer];

    

    

    [self.viewaddSubview:tapView];

    [self.viewaddSubview:btn];

}

- (void)handlePan:(UIPanGestureRecognizer*) recognizer

{

    NSLog(@"拖移，慢速移动");

   CGPoint translation = [recognizer translationInView:self.view];

    recognizer.view.center =CGPointMake(recognizer.view.center.x + translation.x, recognizer.view.center.y + translation.y);

    [recognizer setTranslation:CGPointZeroinView:self.view];

}

-(void)SingleTap:(UITapGestureRecognizer*)recognizer

{

    //处理单击操作

   NSLog(@"单击");

}

-(void)DoubleTap:(UITapGestureRecognizer*)recognizer

{

    //处理双击操作

   NSLog(@"双击");

    

}

- (void) handlePinch:(UIPinchGestureRecognizer*) recognizer

{

   NSLog(@"捏合, %f", recognizer.scale);

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

    recognizer.scale =1;

}

- (void) handleRotate:(UIRotationGestureRecognizer*) recognizer

{

   NSLog(@"旋转, %f", recognizer.rotation);

    recognizer.view.transform =CGAffineTransformRotate(recognizer.view.transform, recognizer.rotation);

    recognizer.rotation =0;

}

-(void)handleLongPress:(UILongPressGestureRecognizer*)recognizer

{

    //处理长按操作

    NSLog(@"长按, %f", recognizer.minimumPressDuration);

}

-(void)handleSwipe:(UISwipeGestureRecognizer*)recognizer

{

    //处理滑动操作

    NSLog(@"滑动，快速移动");

   CGPoint translation = [recognizer locationInView:self.view];

   NSLog(@"Swipe - start location: %f,%f", translation.x, translation.y);

    //    recognizer.view.transform = CGAffineTransformMakeTranslation(translation.x, translation.y);

}