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Xcode – iOS: How to detect if "Larger Accessibility sizes" switch in device accessibility settings is on/off

I am implementing accessibility dynamic fonts for UILabel with custom font in my iOS project.

Looks like this:

let pointSize = UIFontDescriptor.preferredFontDescriptor(withTextStyle: .footnote).pointSize
myLabel.font = UIFont(name: "my-custom-font", size: pointSize)

The issue is that this code is applied even if Larger Accessibility sizes is disabled in device settings, which is no good for me.

How could I apply this code only if Larger Accessibility sizes is enabled?

Tags:

2

Answers


  1. 0

    You can check it in the following way:

    Objective-C code, you can convert it to swift. and have your own check as you need.

     +(BOOL)isCurrentPreferredContentSizeCategoryIsAccessibilityLarge
{
    NSString *contentSize = [UIApplication sharedApplication].preferredContentSizeCategory;
    if([contentSize isEqualToString:UIContentSizeCategoryExtraExtraExtraLarge]
       || [contentSize isEqualToString:UIContentSizeCategoryAccessibilityMedium]
       || [contentSize isEqualToString:UIContentSizeCategoryAccessibilityLarge]
       || [contentSize isEqualToString:UIContentSizeCategoryAccessibilityExtraLarge]
       || [contentSize isEqualToString:UIContentSizeCategoryAccessibilityExtraExtraLarge]
       || [contentSize isEqualToString:UIContentSizeCategoryAccessibilityExtraExtraExtraLarge]) {
        return YES;
    }
    return NO;
}

    The second way around it is to check this with, trait collections’s preferredContentSizeCategory property. You can respond to these changes in traitCollectionDidChange and make UI change accordingly.

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  2. 0

    There is an easier way actually:

    func isLargerTextEnabled() {
   
    let contentSize = UIApplication.shared.preferredContentSizeCategory;
    let accessibilitySizeEnabled = contentSize.isAccessibilityCategory;
    print("Larger text: (contentSize) accessibility: (accessibilitySizeEnabled)")
}
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