Question

Is there a way to set all UILabels as hidden in Objective-C? I’m showing and hiding labels based on if statements and feel like I’m writing really bulky code. Is there a way to select all UILabels to setHidden:YES a la CSS?

Edit: I need one of them visible at a time, not all hidden at once.

Thanks!

Answer 1

If all your labels lay at the same view you can use it’s subviews property:

for (UIView *subview in self.view.subviews) {
    if ([subview isKindOfClass:[UILabel class]]) {
        subview.hidden = YES;
    }
}

And if there are numerous of views with labels you can even add a category to the whole UIView.

@interface UIView (HideLabels)

- (void)hideAllLabels:(BOOL)hide withExcludedLabel:(UILabel *)label;

@end

@implementation UIView (HideLabels)

- (void)hideAllLabels:(BOOL)hide withExcludedLabel:(UILabel *)label
{
    for (UIView *subview in self.view.subviews) {
        if (subview != label && [subview isKindOfClass:[UILabel class]]) {
            subview.hidden = YES;
        }
    }
}

@end

There’s no other way to do this.

Edit: the code above updated according to your needs.