iPhone - Get Position of UIView within entire UIWindow

Question

The position of a UIView can obviously be determined by view center or view frame etc  but this only returns the position of the UIView in relation to it s immediate superview   I need to determine the position of the UIView in the entire 320x480 co-ordinate system  For example  if the UIView is in a UITableViewCell it s position within the window could change dramatically irregardless of the superview   Any ideas if and how this is possible   Cheers

User · Accepted Answer

That s an easy one    aView convertPoint localPosition toView nil         converts a point in local coordinate space to window coordinates  You can use this method to calculate a view s origin in window space like this    aView superview convertPoint aView frame origin toView nil     2014 Edit  Looking at the popularity of Matt  C s comment it seems reasonable to point out that the coordinates      don t change when rotating the device  always have their origin in the top left corner of the unrotated screen  are window coordinates  The coordinate system ist defined by the bounds of the window  The screen s and device coordinate systems are different and should not be mixed up with window coordinates

User · Answer

Swift 3  with extension   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

User · Answer

Swift 5   let globalPoint   aView superview  convert aView frame origin  to  nil

User · Answer

For me this code worked best  private func getCoordinate   view  UIView  - gt  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

User · Answer

Here is a combination of the answer by  Mohsenasm and a comment from  Ghigo adopted to Swift extension UIView       var globalFrame  CGRect            let rootView   UIApplication shared keyWindow  rootViewController  view         return self superview  convert self frame  to  rootView

User · Answer

In Swift   let globalPoint   aView superview  convertPoint aView frame origin  toView  nil

[iphone] iPhone - Get Position of UIView within entire UIWindow

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