iOS轻点、触摸和手势代码开发

四、检测多次轻点

//
// ViewController.m
// TapTaps
//
// Created by Jierism on 16/8/4.
// Copyright © 2016年 Jierism. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UILabel *singleLabel;
@property (weak, nonatomic) IBOutlet UILabel *doubleLabel;
@property (weak, nonatomic) IBOutlet UILabel *tripleLabel;
@property (weak, nonatomic) IBOutlet UILabel *quadrupleLabel;

@end

@implementation ViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
  // 创建4个点击手势识别器
  UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap)];
  singleTap.numberOfTapsRequired = 1;
  singleTap.numberOfTouchesRequired = 1;
  // 附加到视图
  [self.view addGestureRecognizer:singleTap];
  
  UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap)];
  doubleTap.numberOfTapsRequired = 2;
  doubleTap.numberOfTouchesRequired = 1;
  [self.view addGestureRecognizer:doubleTap];
  // 当doubleTap响应“失败”才运行singleTap
  [singleTap requireGestureRecognizerToFail:doubleTap];
  
  UITapGestureRecognizer *tripleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tripleTap)];
  tripleTap.numberOfTapsRequired = 3;
  tripleTap.numberOfTouchesRequired = 1;
  [self.view addGestureRecognizer:tripleTap];
  [doubleTap requireGestureRecognizerToFail:tripleTap];
  
  UITapGestureRecognizer *quadrupleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(quadrupleTap)];
  quadrupleTap.numberOfTapsRequired = 4;
  quadrupleTap.numberOfTouchesRequired = 1;
  [self.view addGestureRecognizer:quadrupleTap];
  [tripleTap requireGestureRecognizerToFail:quadrupleTap];
}

- (void)singleTap
{
  self.singleLabel.text = @"Single Tap Detected";
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    self.singleLabel.text = @"";
  });
}

- (void)doubleTap
{
  self.doubleLabel.text = @"Double Tap Detected";
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    self.doubleLabel.text = @"";
  });
}

- (void)tripleTap
{
  self.tripleLabel.text = @"Triple Tap Detected";
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    self.tripleLabel.text = @"";
  });
}

- (void)quadrupleTap
{
  self.quadrupleLabel.text = @"Quadruple Tap Detected";
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    self.quadrupleLabel.text = @"";
  });
}


@end

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UIGestureRecognizerDelegate>


@end

								 
 3/5   首页 上一页 1 2 3 4 5 下一页 尾页