Xcode Debug View Hierarchy finding viewcontroller

Question

Does the Debug View Hierarchy in Xcode allow me to see what view controller owns a view?

wolfrevo · Accepted Answer · 2017-07-21 22:22:57Z

17

Update: Starting with Xcode 9, view controllers are listed right along the view hierarchy in the visual debugger.

You can get the memory address of the selected view from the inspector in Xcode and then use the console to get the view's view controller using -nextResponder.

http://developer.apple.com/library/ios/documentation/uikit/reference/UIResponder_Class/Reference/Reference.html#//apple_ref/occ/instm/UIResponder/nextResponder

UIView implements this method by returning the UIViewController object that manages it (if it has one) or its superview (if it doesn’t)

edited Jul 21, 2017 at 22:22

answered Aug 19, 2016 at 18:41

wolfrevo

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4 Comments

Dali Over a year ago

An example would be (lldb) po [0x0123456789ab nextResponder], right?

wolfrevo Over a year ago

That should work, you may need to cast the pointer to (id) if lldb complains.

mfaani Over a year ago

what exactly works in during view debug hierarchy? When I use it, I can see the pointer to UIlabels, but when I try to do something like po 0x7fb1de6e2030.text I get an error. I was hoping somehow I could cast it to UILabel but had no success there. Any solution?

wolfrevo Over a year ago

This is unrelated to view controllers, but po [(UILabel *)0x7fb1de6e2030 text] should work.

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