iOS：ccTouchesBegan 可以包含多个触摸吗？答案

【问题标题】：iOS: can ccTouchesBegan contain more than one touch?iOS：ccTouchesBegan 可以包含多个触摸吗？
【发布时间】：2013-06-23 16:57:24
【问题描述】：

我想知道 ccTouchesBegan 中的 NSSet 触摸是否可以包含多个触摸。我做了一些测试，触摸次数始终为 1。

任何人都可以证实这一点？如果只有一次触摸，为什么会有一套？

-(void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

【问题讨论】：

标签： ios cocos2d-iphone touch touch-event

【解决方案1】：

看看这个

-(void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
     NSSet *set = [event allTouches];

     if (set.count == 1) { //first touch

     }
     if (set.count == 2) { //second touch
     } //etc.

【讨论】：

【解决方案2】：

给你，伙计。

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch =[[[event allTouches] allObjects] lastObject];

    //NSLog(@"touchesBegan ...");

    switch ([touch tapCount]) 
    {
        case 1:
            [self performSelector:@selector(oneTap) withObject:nil afterDelay:.5];
            break;

        case 2:
            [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(oneTap) object:nil];
            [self performSelector:@selector(twoTaps) withObject:nil afterDelay:.5];
            break;

        case 3:
            [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(twoTaps) object:nil];
            [self performSelector:@selector(threeTaps) withObject:nil afterDelay:.5];
            break;

        default:
            break;
    }

};



- (IBAction)oneTap
{
    NSLog(@"oneTap ...");


}
- (IBAction)twoTaps
{
    NSLog(@"twoTaps ...");


}

- (IBAction)threeTaps
{
    NSLog(@"threeTaps ...");

}

【讨论】：