更改位置inview UITouch

发布于 2024-11-18 19:48:25 字数 391 浏览 3 评论 0原文

我正在使用下面的代码在屏幕上拖动图像。我喜欢改变的一件事是图像的位置。现在，每次触摸时位置都会发生变化，因此每次我尝试移动它时，它都会转换为我的手指。我该如何制作它才能相对于我的手指移动？例如，如果图像位于屏幕中间，并且我将手指放在屏幕的右下角，则图像不会转换为我的手指。希望这是有道理的。提前致谢。

// get touch event
UITouch *touch = [[event allTouches] anyObject];

// get the touch location
CGPoint touchLocation = [touch locationInView:touch.view];

// move the image view
image.center = touchLocation;

原文

i'm using this code below to drag an image across the screen. The one thing i like to change is the location of the image. Right now, the location changes to every touch so everytime i try to move it, it translate to my finger. How do i make it so it can move relative to my finger? e.g. if the image is in the middle of the screen, and i put my finger at the bottom right of the screen, the image don't get translate to my finger. Hope that makes sense. Thanks in advance.

// get touch event
UITouch *touch = [[event allTouches] anyObject];

// get the touch location
CGPoint touchLocation = [touch locationInView:touch.view];

// move the image view
image.center = touchLocation;

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