为View添加手势

待我称王封你为后i 2023-10-18 12:04 17阅读 0赞

#import <UIKit/UIKit.h>
    
    @interface TestGestureRecognizerViewController : UIViewController {
        UIView *aView;
    }
    @property(nonatomic,retain)IBOutlet UIView *aView;
    @end
    
    ///
    
    
    #import "TestGestureRecognizerViewController.h"
    #import <QuartzCore/QuartzCore.h>//导入框架
    
    @implementation TestGestureRecognizerViewController
    @synthesize aView;
    
    -(void)handelPan:(UIPanGestureRecognizer*)gestureRecognizer{
        //获取平移手势对象在self.view的位置点，并将这个点作为self.aView的center,这样就实现了拖动的效果
        CGPoint curPoint = [gestureRecognizer locationInView:self.view];
        [self.aView setCenter:curPoint];
    }
    -(void)handelTap:(UITapGestureRecognizer *)gestureRecognizer{
        NSLog(@"%s",__FUNCTION__);
        [NSRunLoop cancelPreviousPerformRequestsWithTarget:self];//双击事件取消延时
    }
    //单击方法
    -(void)handelSingleTap:(UITapGestureRecognizer*)gestureRecognizer{
        NSLog(@"%s",__FUNCTION__);
        [self performSelector:@selector(singleTap:) withObject:nil afterDelay:0.2];
    }
    -(void)singleTap:(id)sender{
        NSLog(@"%s",__FUNCTION__);
    }
    
    - (void)viewDidLoad {
        [super viewDidLoad];
    
        //创建一个平移手势对象，该对象可以调用handelPan：方法
        UIPanGestureRecognizer *panGes = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handelPan:)];
        [self.aView addGestureRecognizer:panGes];
        [panGes release];
    
        //创建一个点击手势对象，该对象可以调用handelTap：方法
        UITapGestureRecognizer *tapGes = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handelTap:)];
        [self.view addGestureRecognizer:tapGes];
        [tapGes release];
        [tapGes setNumberOfTouchesRequired:1];//触摸点个数
        [tapGes setNumberOfTapsRequired:2];//点击次数
    
        //创建一个点击手势对象，该对象可以调用handelSingleTap：方法
        UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handelSingleTap:)];
        [self.view addGestureRecognizer:singleTap];
        [singleTap release];
        [singleTap setNumberOfTouchesRequired:1];//触摸点个数
        [singleTap setNumberOfTapsRequired:1];//点击次数
    }
    
    - (void)dealloc {
        [super dealloc];
    }
    
    @end