Objective C - Change text size in Action Sheet for iOS 8

Question

I have an iPad app which already works on iOS 7. I used to reduce the text size in the action sheet buttons with this code:

- (void) willPresentActionSheet:(UIActionSheet *)actionSheet {
  for (UIView *subview in actionSheet.subviews) {
    if ([subview isKindOfClass:[UIButton class]]) {
      UIButton *button = (UIButton *)subview;
      button.titleLabel.font = [UIFont fontWithName:@"HelveticaNeue" size:17.0];
    }
  }
}

I'm looking for a way to do the same on iOS 8 with UIAlertController and UIAlertAction. Although the UIAlertController has a view with subviews, it doesn't seem to have any UIButton or UILabel in it.

You can't do this in iOS 8. It's all different. Better to right your own or find a 3rd party `UIActionSheet` replacement that allows for customizations. — rmaddy, Oct 16 '14 at 23:30
Yes, I ended up creating a view controller with a single button inside of a popover controller. Thank you. — calvillo, Oct 17 '14 at 14:09
This answer may also help you: http://stackoverflow.com/a/26463892/3219089 — Ivan, Oct 20 '14 at 12:26

score 0 · Answer 1 · answered Oct 18 '14 at 17:49

You CAN do that on iOS8. Just subclass UIAlertController, check code below:

@interface AlertController : UIAlertController

@end

@implementation AlertController

- (void)viewWillLayoutSubviews {
  [super viewWillLayoutSubviews];

  // Search for labels and change font
  [self changeLabelsFontInView:self.view];
}

- (void)changeLabelsFontInView:(UIView *)view {
  if (view.subviews.count > 0) {
    for (UIView *subview in view.subviews) {
      [self changeLabelsFontInView:subview];
    }
  } else {
    if ([view isKindOfClass:[UILabel class]]) {
      [(UILabel *)view setFont:[UIFont boldSystemFontOfSize:35.0F]];
    }
  }
}

@end

I'm not sure this works because I believe `UIAlertController` has no `UILabel`'s, but I will give it a try. — calvillo, Oct 22 '14 at 16:06

Objective C - Change text size in Action Sheet for iOS 8

1 Answers1