iphone - UIButton - Frame and Bounds Zero - Page Based Application -

there similar unresolved question bound , frame uibutton

i using storyboards autolayout , "page based application template"

i able reproduce problem making standard page based application adding button storyboard , referencing in

viewdidappear of dataviewcontroller.m

- (void)viewdidappear:(bool)animated {     nslog(@"view did appear");     nslog(@"self.mybutton.bounds = %@",nsstringfromcgrect(self.mybutton.bounds));     nslog(@"self.mybutton.frame = %@",nsstringfromcgrect(self.mybutton.frame));     nslog(@"self.mybutton = %@",self.mybutton); } 

output
2013-05-14 19:37:45.954 frametest4[10777:c07] view did appear 2013-05-14 19:37:45.966 frametest4[10777:c07] self.mybutton.bounds = {{0, 0}, {0, 0}} 2013-05-14 19:37:45.968 frametest4[10777:c07] self.mybutton.frame = {{0, 0}, {0, 0}} 2013-05-14 19:37:45.970 frametest4[10777:c07] self.mybutton = >

the header file

#import <uikit/uikit.h>     @interface dataviewcontroller : uiviewcontroller @property (strong, nonatomic) iboutlet uilabel *datalabel; @property (strong, nonatomic) id dataobject; @property (weak, nonatomic) iboutlet uibutton *mybutton; 

when run same code single view application autolayout , storyboards works fine.

the reason need information need run animation ends @ button. ryan

i kind of thing in new ios 5 method viewdidlayoutsubviews.

be careful though, method potentially called more once, yo might have keep flag around track this.