这很简单:

[aView convertPoint:localPosition toView:nil];

．.． 将局部坐标空间中的点转换为窗口坐标。你可以使用这个方法来计算视图在窗口空间中的原点，如下所示:

[aView.superview convertPoint:aView.frame.origin toView:nil];

2014编辑:看看Matt__C的评论的受欢迎程度，似乎有理由指出坐标…

转动设备时不要改变。 始终让它们的原点位于未旋转屏幕的左上角。 是窗口坐标:由窗口边界定义的坐标系统。屏幕和设备的坐标系统是不同的，不应该与窗口坐标混淆。

迅速:

let globalPoint = aView.superview?.convertPoint(aView.frame.origin, toView: nil)

斯威夫特5 +:

let globalPoint = aView.superview?.convert(aView.frame.origin, to: nil)

Swift 3，扩展:

extension UIView{
    var globalPoint :CGPoint? {
        return self.superview?.convert(self.frame.origin, to: nil)
    }

    var globalFrame :CGRect? {
        return self.superview?.convert(self.frame, to: nil)
    }
}

以下是@Mohsenasm的回答和@Ghigo对Swift的评论

extension UIView {
    var globalFrame: CGRect? {
        let rootView = UIApplication.shared.keyWindow?.rootViewController?.view
        return self.superview?.convert(self.frame, to: rootView)
    }
}

对我来说，这段代码效果最好:

private func getCoordinate(_ view: UIView) -> CGPoint {
    var x = view.frame.origin.x
    var y = view.frame.origin.y
    var oldView = view

    while let superView = oldView.superview {
        x += superView.frame.origin.x
        y += superView.frame.origin.y
        if superView.next is UIViewController {
            break //superView is the rootView of a UIViewController
        }
        oldView = superView
    }

    return CGPoint(x: x, y: y)
}

这对我很有效

view.layoutIfNeeded() // this might be necessary depending on when you need to get the frame

guard let keyWindow = UIApplication.shared.windows.first(where: { $0.isKeyWindow }) else { return }

let frame = yourView.convert(yourView.bounds, to: keyWindow)

print("frame: ", frame)

对我来说很有用:)

extension UIView {
    var globalFrame: CGRect {
        return convert(bounds, to: window)
    }
}