结合长按手势和拖动手势

问题描述

我正在移动我的观点

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(moveRight:)];
[panRecognizer setMinimumNumberOfTouches:1];
[panRecognizer setMaximumNumberOfTouches:1];
[panRecognizer setDelegate:self];
[bubbleView[rightCnt] addGestureRecognizer:panRecognizer];
[panRecognizer release];

现在，我希望通过长按拖动来做同样的事情。

Now , I want to do same thing by drag with long press.

任何想法？

推荐答案

UILongPressGestureRecognizer 已经做了你想要的。看一下 UIGestureRecognizerState 属性。来自：

UILongPressGestureRecognizer already does what you want for you. Take a look at the UIGestureRecognizerState property. From the documentation:

因此，基本上在调用 UILongPressGestureRecognizer 选择器之后，您将收听UIGestureRecognizerStateBegan，UIGestureRecognizerStateChanged，UIGestureRecognizerStateEnded。在 UIGestureRecognizerStateChanged 期间继续更改视图框架。

So essentially after your UILongPressGestureRecognizerselector is called you listen to UIGestureRecognizerStateBegan, UIGestureRecognizerStateChanged, UIGestureRecognizerStateEnded. Keep changing your views frame during UIGestureRecognizerStateChanged.

- (void)moveRight:(UILongPressGestureRecognizer *)gesture
{
    if(gesture.state == UIGestureRecognizerStateBegan)
    {
        //if needed do some initial setup or init of views here
    }
    else if(gesture.state == UIGestureRecognizerStateChanged)
    {
        //move your views here.
        [yourView setFrame:];
    }
    else if(gesture.state == UIGestureRecognizerStateEnded)
    {
        //else do cleanup
    }
}

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