Question

如果有人可以帮助我，那就太棒了！

我需要获取滑动的坐标。我可以从locationInNode等获取初始触摸的坐标，但是如何才能获得滑动释放点上的坐标？

func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    touched = true

    for touch in touches {
        location = touch.locationInNode(self)
        print(location)
    }
}

这就是我获取初始坐标的方法，我也为touchesMoved

做了这个

override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
    for touch in touches {
        location = touch.locationInNode(self)
        print(location)
    }

使用此代码时，它不会在触摸时打印释放的最终坐标。

基本上我想锻炼第一次触摸和用坐标释放滑动点之间的距离。谢谢你的帮助!!

Answer 1

捕捉滑动的状态，从began到ended：

let point: CGPoint = recognizer.location(in: recognizer.view!)
if recognizer.state == .began {
    print(NSCoder.string(for: point))
}
else if recognizer.state == .ended {
    print(NSCoder.string(for: point))
}

Answer 2

-(IBAction)swipe:(UIGestureRecognizer*)sender
{
    UIView *view1 = sender.view;

    if (sender.state == UIGestureRecognizerStateEnded) {
           CGPoint touchUpPoint = [sender locationInView:view1];
        NSLog(@"x=%f, y=%f",touchUpPoint.x,touchUpPoint.y);
    }

}

使用spritekit检测swipe swift释放时的坐标

2 个答案: