1

这是 panGesture 的实例。

   pangstr = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];

- (void)handlePan:(UIPanGestureRecognizer *)recognizer{

    CGPoint translation = [recognizer translationInView:baseView];
    recognizer.view.center = CGPointMake(recognizer.view.center.x + translation.x, recognizer.view.center.y);
    [recognizer setTranslation:CGPointMake(0, 0) inView:baseView];


    if (recognizer.state == UIGestureRecognizerStateEnded) {


        CGPoint velocity = [recognizer velocityInView:baseView];
        CGFloat magnitude = sqrtf((velocity.x * velocity.x));
        CGFloat slideMult = magnitude / 1000;
        NSLog(@"magnitude: %f, slideMult: %f", magnitude, slideMult);
        float slideFactor = 0.15 * slideMult;

        CGPoint finalPoint = CGPointMake(recognizer.view.center.x + (velocity.x * slideFactor),
                                         recognizer.view.center.y + (velocity.y * slideFactor));
}

现在我的问题是如何在 - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event 函数中使用 (panGestureRecogniser *)recogniser 参数。我特别想要这个，因为我想在我的 TouchesMoved 函数中获取 finalPoint 的值，而 CGPoint finalPoint 使用 *recogniser 参数。

如果有人能给我一个解决方案，那就太好了谢谢

4

1 回答 1

0

为什么不直接使用识别器状态？

if (recognizer.state == UIGestureRecognizerStateChanged) 
{
    //Save whatever information you need here
}

关于共享变量，使用不同的变量StateChanged并将它们同步到StateEnded？

于 2012-11-29T12:03:12.230 回答