Ios 如何在另一个视图中获取视图的框架？

我在

self.view

（主视图）中有一个

UIImageView

，里面有一个

ui按钮。我想知道
self.view
中的
ui按钮的框架是什么，而不是
ui图像视图中的
ui按钮的框架是什么？可能完全错了，力真的想透了；p

CGRect frame = CGRectMake((self.view.frame.origin.x-imageview.frame.origin.x) +btn.frame.origin.x,
                          (self.view.frame.origin.y.imageview.frame.origin.y)+btn.frame.origin.y,
                          btn.frame.size.width,
                          btn.frame.size.height);

我不知道是否有更简单的方法。
我想你正在寻找这种方法


有四种
UIView
方法可以帮助您将
CGPoints
和
CGRects
从一个
UIView
坐标参照转换为另一个：

– convertPoint:toView:
– convertPoint:fromView:
– convertRect:toView:
– convertRect:fromView:

所以你可以试试

CGRect f = [imageView convertRect:button.frame toView:self.view];

或

Swift 3

可以使用以下方法将按钮的框架转换为视图的坐标系：

self.view.convert（myButton.frame，from:myButton.superview）


确保将逻辑放入
viewdilayoutsubviews
中，而不是
viewdiload
。布局子视图后，应执行与几何图形相关的操作，否则这些操作可能无法正常工作

class ViewController: UIViewController {

    @IBOutlet weak var myImageView: UIImageView!
    @IBOutlet weak var myButton: UIButton!

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()

        let buttonFrame = self.view.convert(myButton.frame, from: myButton.superview)
    }
}

在转换帧时，您可以只参考
myButton.superview
而不是
myImageView


以下是转换
CGPoint
或
CGRect
的更多选项

self.view.convert(point: CGPoint, from: UICoordinateSpace)
self.view.convert(point: CGPoint, from: UIView)             
self.view.convert(rect: CGRect, from: UICoordinateSpace)
self.view.convert(rect: CGRect, from: UIView)

self.view.convert(point: CGPoint, to: UICoordinateSpace)
self.view.convert(point: CGPoint, to: UIView)
self.view.convert(rect: CGRect, to: UICoordinateSpace)
self.view.convert(rect: CGRect, to: UIView)


有关转换
CGPoint
或
CGRect
的更多信息，请参阅

self.view.convert(point: CGPoint, from: UICoordinateSpace)
self.view.convert(point: CGPoint, from: UIView)             
self.view.convert(rect: CGRect, from: UICoordinateSpace)
self.view.convert(rect: CGRect, from: UIView)

self.view.convert(point: CGPoint, to: UICoordinateSpace)
self.view.convert(point: CGPoint, to: UIView)
self.view.convert(rect: CGRect, to: UICoordinateSpace)
self.view.convert(rect: CGRect, to: UIView)

self.view.convert(point: CGPoint, from: UICoordinateSpace)
self.view.convert(point: CGPoint, from: UIView)             
self.view.convert(rect: CGRect, from: UICoordinateSpace)
self.view.convert(rect: CGRect, from: UIView)

self.view.convert(point: CGPoint, to: UICoordinateSpace)
self.view.convert(point: CGPoint, to: UIView)
self.view.convert(rect: CGRect, to: UICoordinateSpace)
self.view.convert(rect: CGRect, to: UIView)