ios给手势设置优先级

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技术博客达人 2025-03-03 08:49:00

文章标签 ios给手势设置优先级 hg #import 多点触摸 文章分类 iOS 移动开发

//
//  TouchView.m
//  touchnumber
//
//  Created by  liyang on 14-4-26.
//  Copyright (c) 2014年 liyang. All rights reserved.
//

#import "TouchView.h"


@implementation TouchView

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.userInteractionEnabled=YES;//这个作用是设置此视图是否能捕获事件，当上面的视图的都不能捕获事件的时候下面的视图自然就能捕获了。当UIImageView为什么要设置 self.userInteractionEnabled=YES；因为那个视图默认为no不能捕获事件，上面的按钮自己也不能捕获，所以在上面加上按钮的时候必须将这个属性设置为yes
        self.multipleTouchEnabled=YES;//这个作用是设置此视图是否支持多点触摸
    }
    return self;
}
//触摸开始
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
   
  UITouch *touch=  [touches anyObject];
    NSInteger touchnumber=touch.tapCount;
    if (touchnumber==1) {
        //[self singleTab];//这样调用会造成，先执行单击，再双击，所以我们还一种当时来调用
        [self performSelector:@selector(singleTab) withObject:nil afterDelay:0.5];//延迟0.5秒调用这个方法
        
    }else if(touchnumber==2){
        [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(singleTab) object:nil];//取消之间延迟调用的方法
        [self doubleTab];
    }
   
  }
//触摸移动
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *touch=  [touches anyObject];
    CGPoint point=[touch locationInView:self];//拿到点击的坐标
   UIView *view= [[self superview] viewWithTag:100];
    CGRect frame=  view.frame;
    frame.origin=point;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:1.0];
    view.frame=frame;
    [UIView commitAnimations];
    NSLog(@"%@",NSStringFromCGPoint(point));

}
//触摸结束
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{


}
//触摸取消,比如打电话进来了
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{

}
-(void)singleTab{
 NSLog(@"单击");

}

-(void)doubleTab{
    
      NSLog(@"双击");
}

@end

捏合手势，2点距离

//
//  TouchView.m
//  touchnumber
//
//  Created by  liyang on 14-4-26.
//  Copyright (c) 2014年 liyang. All rights reserved.
//

#import "TouchView.h"


@implementation TouchView

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.userInteractionEnabled=YES;//这个作用是设置此视图是否能捕获事件，当上面的视图的都不能捕获事件的时候下面的视图自然就能捕获了。当UIImageView为什么要设置 self.userInteractionEnabled=YES；因为那个视图默认为no不能捕获事件，上面的按钮自己也不能捕获，所以在上面加上按钮的时候必须将这个属性设置为yes
        self.multipleTouchEnabled=YES;//这个作用是设置此视图是否支持多点触摸
    }
    return self;
}
double distince=0;
//触摸开始
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    if ([touches count]==2) {//捏合手势
        NSArray *toucharray= [touches allObjects];
        UITouch * firsttouch=[toucharray objectAtIndex:0];
        UITouch * secondtouch=[toucharray objectAtIndex:1];
        
        
        CGPoint point1=[firsttouch locationInView:self];
        CGPoint point2=[secondtouch locationInView:self];
        //计算2点的距离
        distince=[self distince:point1 point:point2];
        NSLog(@"%f",distince);
    }
    
  }

//计算2点的距离
-(double)distince:(CGPoint)p1 point:(CGPoint)p2{
   return  sqrt(pow(p1.x-p2.x,2)+pow(p1.y-p2.y,2));

}

//触摸移动
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    if ([touches count]==2) {//捏合手势
        NSArray *toucharray= [touches allObjects];
        UITouch * firsttouch=[toucharray objectAtIndex:0];
        UITouch * secondtouch=[toucharray objectAtIndex:1];
        
        
        CGPoint point1=[firsttouch locationInView:self];
        CGPoint point2=[secondtouch locationInView:self];
        //计算2点的距离
       double distince_new=[self distince:point1 point:point2];
        NSLog(@"%f",distince_new/distince);//这个就可以作为放大的倍数了
    }

}
//触摸结束
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{


}
//触摸取消,比如打电话进来了
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{

}

@end

//手势

//
//  RootViewController.m
//  uigesturerecognize
//
//  Created by  liyang on 14-4-26.
//  Copyright (c) 2014年 liyang. All rights reserved.
//

#import "RootViewController.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    //单击
    UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tap:)];
    [self.view addGestureRecognizer:tap];
    //双击
    UITapGestureRecognizer *tap1=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tap1:)];
    tap1.numberOfTapsRequired=2;
    [self.view addGestureRecognizer:tap1];
    [tap requireGestureRecognizerToFail:tap1];//区别双击和单机，估计实现和刚才一样的，因为现在单机明显慢半拍了
    
    
    //清扫
   UISwipeGestureRecognizer *swipe= [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipe:)];
    swipe.numberOfTouchesRequired=2;//清扫用的手指数
    swipe.direction=UISwipeGestureRecognizerDirectionRight;//清扫的方向
    [self.view addGestureRecognizer:swipe];
    
    
    
    //滑动
    UIPanGestureRecognizer *pan= [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(pan:)];
    
    [self.view addGestureRecognizer:pan];
    
    //长按手势
    UILongPressGestureRecognizer *longpress=[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longpress:)];
    longpress.minimumPressDuration=2;//长按的时间
     [self.view addGestureRecognizer:longpress];
    
    
    //旋转手势
   UIRotationGestureRecognizer *rotation= [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationaction:)];
    [self.view addGestureRecognizer:rotation];
    
    
    //捏合手势
    UIPinchGestureRecognizer*pinch= [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchaction:)];
    [self.view addGestureRecognizer:pinch];

}

-(void)tap:(UITapGestureRecognizer *)pangesturerecognizer{
    NSLog(@"单击");
}
-(void)tap1:(UITapGestureRecognizer *)pangesturerecognizer{
    CGPoint p=  [pangesturerecognizer locationInView:self.view];//取得划过的点
    
    NSLog(@"%@", NSStringFromCGPoint(p));
    NSLog(@"双击");
}
-(void)swipe:(UISwipeGestureRecognizer *)swipeGesture{
    NSLog(@"清扫");
}
-(void)pan:(UIPanGestureRecognizer *)pan{
  CGPoint p=  [pan locationInView:self.view];//取得划过的点
    
    NSLog(@"%@", NSStringFromCGPoint(p));
}
-(void)longpress:(UILongPressGestureRecognizer *)pan{
    
    if (pan.state==UIGestureRecognizerStateEnded) {
        return;
    }
    CGPoint p=  [pan locationInView:self.view];//长按也可以获取点取得划过的点，得出结论所有手势都可以获得点
    
    NSLog(@"长按%@", NSStringFromCGPoint(p));
}


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


    NSLog(@"%f",rotation.rotation*(180/M_PI));
}
-(void)pinchaction:(UIPinchGestureRecognizer *)pinchgesturerecognizer{
    if (pinchgesturerecognizer.state==UIGestureRecognizerStateEnded) {
        return;
    }
    if ( pinchgesturerecognizer.scale>1) {
        NSLog(@"放大,%f",pinchgesturerecognizer.scale);
    }else{
        NSLog(@"缩小%f",pinchgesturerecognizer.scale);
    }
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end

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