CODEWITHSUNDEEP
iosobjective-cxcodeautolayoutxib
Nic Hubbard
Nic Hubbard

Reputation: 42139

UIView in XIB using Autolayout is always 600x600

I created a separate .xib because I wanted to design a UIView with autolayout outside of a viewController. I created the .xib, added the UIView and the constraints, using wCompact hRegular. Simple.

enter image description here

Then add it to my viewController in viewDidLoad:

UIView *header = [[[NSBundle mainBundle] loadNibNamed:@"HeaderSearch" owner:self options:nil] lastObject];
NSLog(@"%@", NSStringFromCGRect(header.frame));
[self.view addSubview:header];

But, when it is added, the frame size is 600x600 and I cannot figure out why.

What have I done wrong here that is forcing this strange size?

Upvotes: 14

Views: 6680

Answers (5)

Igor
Igor

Reputation: 12303

I think, this is the best of correct ways:

- (void)willMoveToParentViewController:(UIViewController *)parent {
    [super willMoveToParentViewController:parent];

    self.view.frame = parent.view.frame;
    [self.view layoutIfNeeded];

    // adjust subviews here
}

View will get correct frame and adjustments will called only once on initialization.

Upvotes: 0

Michal Cichon
Michal Cichon

Reputation: 1409

I had a similar problem but in my case I didn't like to turn off trait variations or size classes. I also loading some views from XIBs but I use this handy helper category:

@implementation UIView (Initialization)

+ (instancetype)instantiateFromNib {
    return [[[NSBundle mainBundle] loadNibNamed:NSStringFromClass(self.class) owner:nil options:nil] firstObject];
}

@end

I didn't want to introduce constraints written in a code so added a overriden viewWillLayoutSubviews method to my view controller like following:

- (void)viewWillLayoutSubviews {
    [super viewWillLayoutSubviews];
    [self.firstView setFrame:self.view.bounds];
    [self.secondView setFrame:self.view.bounds];
}

In my case firstView and secondView are just an overlay to the whole view controller.

Upvotes: 0

Milap Kundalia
Milap Kundalia

Reputation: 1606

If it is Xcode 8 disable "Use Trait Variations"

enter image description here

Upvotes: 2

nano
nano

Reputation: 2521

You need to uncheck 'Use size classes' in your xib

uncheck size classes

and the view frame size will be the one you set and not 600x600

Upvotes: 10

gabbler
gabbler

Reputation: 13766

Please refer to this.

header.translatesAutoresizingMaskIntoConstraints = NO;
[self.view addSubview:header];

NSLayoutConstraint *widthConstraint = [NSLayoutConstraint constraintWithItem:self.view attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:header attribute:NSLayoutAttributeWidth multiplier:1.0 constant:0];
[self.view addConstraint:widthConstraint];

NSLayoutConstraint *heightConstraint = [NSLayoutConstraint constraintWithItem:header attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:130.0];
[self.view addConstraint:widthConstraint];
[self.view addConstraint:heightConstraint];

Upvotes: 3

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