Convert a UIView origin point to its Window coordinate system

Question

I want to get the origin of scrollView in the window coordinate system. For Example, presently, scollView origin is (0,51). But in window coordinate system it should be 51 +

Answer 1

Note that these functions will only work after view controller finished laying out subviews. So if you want that when view loads, you can use viewDidLayoutSubviews / viewDidAppear, but not in viewDidLoad / viewWillAppear etc...

This code worked for me:

- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];

    CGPoint originInSuperview = [self.view.superview convertPoint:CGPointZero fromView:self.scrollView];
}