iOS之单、双击事件

来源：互联网发布：sql 执行视图编辑：程序博客网时间：2024/04/30 05:40

提供一下三种方法参考：

方法一：

//单击事件  -(void)fun1  {            NSLog(@"click1");  }  //双击事件  -(void)fun2  {      NSLog(@"click2");  }    //单击和双击方法之一  -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event  {            if ([[touches anyObject] tapCount] == 1) {          [self performSelector:@selector(fun1) withObject:nil afterDelay:1];      }      else if ([[touches anyObject] tapCount] ==2)      {          [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(fun1) object:nil];          [self performSelector:@selector(fun2) withObject:nil afterDelay:1];      }  }

方法二：[线程]

int num = 0;  -(void)fun1  {      [NSThread sleepForTimeInterval:1];      if(num == 1)      {          NSLog(@"click 1");      }  }  -(void)fun2  {      [NSThread sleepForTimeInterval:1];      if(num == 2)      {          NSLog(@"click 2");      }  }  -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event  {      if([[touches anyObject] tapCount] == 1)      {          num = 1;          NSThread * thread = [[NSThread alloc] initWithTarget:self selector:@selector(fun1) object:nil];          [thread start];      }      else if([[touches anyObject] tapCount] == 2)      {          num = 2;          NSThread * thread = [[NSThread alloc] initWithTarget:self selector:@selector(fun2) object:nil];          [thread start];      }  }

方法三：[利用手势控件本身自带的方法]

原理：执行第二个方法的时候，取消第一次的方法操作

- (void)viewDidLoad  {      [super viewDidLoad];      //点击事件      UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(fun1)];      //单点触摸        tap.numberOfTouchesRequired = 1;      //点击几次，如果是1就是单击      tap.numberOfTapsRequired = 1;      [self.view addGestureRecognizer:tap];            UITapGestureRecognizer *tap2 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(fun2)];      tap2.numberOfTapsRequired = 2;      [self.view addGestureRecognizer:tap2];            //如果满足第二次 第一次的就取消      [tap requireGestureRecognizerToFail:tap2];  }

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