viewWillAppear is called if navigationItem is set in viewDidLoad

Originator:stephan.diederich
Number:rdar://12214613 Date Originated:
Status: Resolved:
Product:Developer Tools Product Version:iOS 6 beta 4 (10A5376e)
Classification:Serious Bug Reproducible:Always
 
Summary:
If the appearance of UIBarButtonItems is adjusted via setTitleTextAttributes and a ViewController sets it's navigationItem's UIBarButtons in viewDidLoad, this adjustment triggers a call to viewWillAppear.

The appearance adjustments dictionary must contain the following key-value pair:
[UIFont boldSystemFontOfSize:0.f], UITextAttributeFont

Steps to Reproduce:
* customize appearance of UIBarButtonItem's titleTextAttributes but keep the default font size ([UIFont boldSystemFontOfSize:0.f], UITextAttributeFont)
* set navigationItem's barbutton in viewDidLoad e.g. via self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:nil];

Expected Results:
Setting the navigationItem should not call viewWillAppear before viewDidLoad finished.

Actual Results:
viewWillAppear is called during viewDidLoad

Regression:
Does not happen in 5.1.1

Notes:
A sample project is available https://dl.dropbox.com/u/858897/iPhone/TestProjects/NaviationItemTriggersViewWillAppear.zip

Comments

Have you had any success on this? On the Golden Master, I still have the problem discussed here (https://openradar.appspot.com/12067615) which seems related.

I set a navbar's title font characteristics in didFinishLaunching ... . The font size changes, but the label it is contained does not resize, leaving an indented title. If I leave the view and return, it looks right.

By jeremy at Sept. 13, 2012, 4:17 a.m. (reply...)

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