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iosuitextfieldcellcoordinate

Get UITextField Y coordinate on UIView level?

Currently I have a UITextField in a custom cell and I want to get the Y coordinate of that UITextField on the level of the View Controller's view (UIView). Currently I am trying to do something like this:

if (thetextField.superview.superview.superview.frame.origin.y >= keyboardY) {

}

But it seems that the Y coordinate is always 0 when it is in fact not. Is there any way to achieve this?

I am doing this because I want to detect whether the UIKeyboard is blocking the UITextField on the UIView level so that I can re-arrange my cells accordingly.

Thanks!

Solution

  • Check convertPoint:* methods in UIView documentation. These methods allow you to map point to or from other views coordinates.

    Provided that self is a view controller, this line returns text field's origin in view controller's view coordinates:

    [thetextField convertPoint:thetextField.frame.origin toView:self.view];

    You can also convert rects in a similar fashion using convertRect:* methods.