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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