iOS cannot change frame of UIButton

Question

I am currently stuck with a very weird problem. I am using iOS 6 and Xcode 4.5. I have a storyboard with a UIViewController and a UIButton in it. I made a weak UIButton outlet to my .h file.

In the .m file I want to change the frame of the button but nothing happens. Yet I have an UIImageView created and connected the same way as the UIButton but I can change the UIImageView's frame without any problems.

When I do this:

NSLog(@"%@", button) 

I get this output:

<UIButton: 0xa185a40; frame = (191 330; 73 44); opaque = NO; autoresize = TM+BM; layer = <CALayer: 0xa185640>>

And these are the relevant parts of my code:

-(void)viewDidLayoutSubviews{
    [self addStampGrid];
}

-(void)addStampGrid {

    // ...

    [_button setFrame:CGRectMake(10,10,10,10)];
}

Answer 1

You can use this

[_button setTranslatesAutoresizingMaskIntoConstraints:YES];

after this you can set frame of your button.

It may give some warnings in log about constraints, as this property override constraints you gave in autolayout.

Answer 2

I had the same weird problem using XCode 4.5 and iOS 6 as deployment target. I am not using story board though. I managed to solve it by disabling the option "Use Autolayout" in the Interface Builder. (In the file inspector->Interface builder document.

Hope this helps

Answer 3

You can change frame of your UIButton by changing layer's frame of UIButton

 [self.button.layer setFrame:] 

import QuartzCore framework in your class header before using this. This will work with auto layout also.