How does autoresizing mask work? - objective-c

Question

I've found a lot of information on autoresizing but none has been able to solve my problem. I have a ViewController (RAViewController) who calls a view in its loadView method like so:
- (void)loadView
{
// Set Navigation Bar Title
self.navigationItem.title = #"RA";
// Add Background view
self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Add RAView
RAView *rAView = [[RAView alloc] initWithFrame:self.view.frame Controller:self];
[self.view rAView];
}
The view it calls (RAView) looks like this:
- (id)initWithFrame:(CGRect)frame Controller:(RAViewController *)Controller
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
self.autoresizesSubviews = YES;
self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.backgroundColor = [[UIColor alloc] initWithRed:1.0 green:1.0 blue:1.0 alpha:1.0];
controller = Controller;
// Draw Architecture View
[self drawArchitectureView];
}
return self;
}
-(void)drawArchitectureView {
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 10, self.frame.size.width - 20, 50);
[button setBackgroundColor:[UIColor grayColor]];
[button setTitle:#"Overview" forState:UIControlStateNormal];
[self addSubview:button];
}
For some reason I can't get autoresizing mask to resize the button width when the device is landscape. Any help is greatly appreciated.

Answer 1

If you want it to keep the same height, but just stay fully centered, 10.0 from the left and right, try:
-(void)drawArchitectureView {
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 10, self.frame.size.width - 20, 50);
button.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin;
[button setBackgroundColor:[UIColor grayColor]];
[button setTitle:#"Overview" forState:UIControlStateNormal];
[self addSubview:button];
}