手势学习

蔚落 2022-08-01 15:38 197阅读 0赞

//
    //  GestureViewController.m
    //  AppUI组件学习
    //
    //  Created by 麦子 on 15/6/29.
    //  Copyright (c) 2015年 麦子. All rights reserved.
    //
    
    #import "GestureViewController.h"
    
    @interface GestureViewController ()
    
    @end
    
    @implementation GestureViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        self.title = @"手势识别";
        self.view.backgroundColor = [UIColor whiteColor];
        // 识别手势类
        [self testPan];
       
        
    }
    
    // 点击类测试
    - (void)testTap{
        // 点击
        UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(grEvent:)];
        gr.numberOfTapsRequired = 1;
        [self.view addGestureRecognizer:gr];
        
        UITapGestureRecognizer *gr2 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dbGrEvent:)];
        gr2.numberOfTapsRequired = 2;
        [self.view addGestureRecognizer:gr2];
        
        // 当单击失败的时候，才双机
        [gr requireGestureRecognizerToFail:gr2];// 区分单机和双击问题。
    
    }
    
    // 滑动
    - (void)testSwipe{
        UISwipeGestureRecognizer *sw = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swEvent:)];
        [sw setDirection:UISwipeGestureRecognizerDirectionLeft];//分别4个方向
        [self.view addGestureRecognizer:sw];
    
    }
    
    // 长按
    - (void)testLogTap{
        UILongPressGestureRecognizer *longPr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longTap:)];
        longPr.minimumPressDuration = 3;// 最小3秒时间
        [self.view addGestureRecognizer:longPr];
    }
    
    // 捏合  放大缩小
    - (void)testPin{
        UIPinchGestureRecognizer *pin = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinEvent:)];
        [self.view addGestureRecognizer:pin];
    }
    
    
    // 旋转
    - (void)testRota{
        UIRotationGestureRecognizer *rota = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotaEvent:)];
        [self.view addGestureRecognizer:rota];
    }
    
    
    // 拖拽
    - (void)testPan{
        UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panEvent:)];
        [self.view addGestureRecognizer:pan];
    }
    
    
    // 拖拽
    - (void)panEvent:(UIPanGestureRecognizer *)sender{
        // 这一点到前面一点的移动的距离
        CGPoint point = [sender translationInView:self.view];
        // 调整视图的中心位置
        sender.view.center = CGPointMake(sender.view.center.x+point.x, sender.view.center.y+point.y);
        // 恢复位置
        [sender setTranslation:CGPointZero inView:self.view];
        
    }
    
    
    
    // 这个是两个之间的距离
    - (void)rotaEvent:(UIRotationGestureRecognizer *)obj{
        
        NSLog(@"旋转。。。。%g度",obj.rotation*180/M_PI); // 相对上一次的增量。
    }
    
    
    // 这个是两个之间的距离
    - (void)pinEvent:(UIPinchGestureRecognizer *)obj{
        
        NSLog(@"捏合。。。。%f",obj.scale);
    }
    
    // 长按监听－－－长按会进来方法两次，所以要通过状态来进行区别
    - (void)longTap:(UILongPressGestureRecognizer *)longTapEvent{
        NSLog(@"3秒显示一次，抬起的时候，显示一次。");
        if (longTapEvent.state == UIGestureRecognizerStateBegan) {
            
            NSLog(@"时间到，触发吧");
            
        }else if(longTapEvent.state == UIGestureRecognizerStateEnded){
        
            NSLog(@"时间到，消失吧");
        }
        
        
    
    }
    
    - (void)swEvent:(id)obj{
    
        NSLog(@"滑动监听。。。。。");
    }
    
    
    
    - (void)grEvent:(id)obj{
      
        NSLog(@"单击了。。。。。");
    
    }
    
    - (void)dbGrEvent:(id)obj{
    
        NSLog(@"双击了。。。。");
    
    }
    
    
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    
     触摸开始
    //- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    //    
    //    // 位置
    //    UITouch  *touch = [touches anyObject];
    //    long count = [touch tapCount]; // 点击的个数
    //    
    //    
    //    NSLog(@"触摸开始－－－－手指个数－%ld-----点击个数%ld",touches.count,count);
    //   
    //}
    
     触摸结束
    //- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
    //    
    //    NSLog(@"触摸结束－－－－%ld",touches.count); // 手指个数
    //    
    //    
    //}
    //
     移动
    //- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    //    UITouch *touch = [touches anyObject];
    //    CGPoint point = [touch locationInView:self.view];
    //    
    //    NSLog(@"触摸移动－－－－%ld",touches.count);
    //    NSLog(@"触摸移动--X:--%f----Y:--%f",point.x,point.y);
    //}
    //
     触摸事件取消
    //- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{
    //    
    //    NSLog(@"触摸取消");
    //    
    //}
    
    
    @end