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what is ultimate root of visible UIView hierarchy tree?

原文 2012-11-22 07:30:12 1 1 ios/ uiview

what is ultimate root of visble UIView hierarchy tree? Is that one of UIWindow object that can retrieve by [[UIApplication sharedApplication] windows] ? is that true so for modal UIView ?

1 answers

Yes. Every App consists of MainWindow.xib file. That's the parent of all. If using newer versions of Xcode, A UIWindow will be declared at the start in the AppDelegate's didFinishWithLaunching method.

Also, Modal UIViewController would be added to a Parent UIViewController which is again added on UIWindow

UIView hierarchy

What's the hierarchical relationship with UIView's root layer and root view?

Is the UIView visible?

What is a good way to make references between each UIView in the hierarchy?

How can I make a Sequence to iterate over all the ancestors (superviews) from a UIView up the view hierarchy to the root?

Write the UIView Hierarchy

Make part of UIView visible

Custom UIView not visible on addSubview

UIView not visible in UITableView Header

Getting Visible Rect of UIView

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Related Question UIView hierarchy What's the hierarchical relationship with UIView's root layer and root view? Is the UIView visible? What is a good way to make references between each UIView in the hierarchy? How can I make a Sequence to iterate over all the ancestors (superviews) from a UIView up the view hierarchy to the root? Write the UIView Hierarchy Make part of UIView visible Custom UIView not visible on addSubview UIView not visible in UITableView Header Getting Visible Rect of UIView

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what is ultimate root of visible UIView hierarchy tree?

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solution1 0 ACCPTED 2012-11-22 09:09:35

solution1
0 ACCPTED 2012-11-22 09:09:35