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Changing tab bar font in Swift

Posted by: admin November 30, 2017 Leave a comment

Questions:

I have been trying to change the font for the tab bar items however I haven’t been able to find any Swift examples. I know that this is how you change it in Objective-C:

[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"AmericanTypewriter" size:20.0f], UITextAttributeFont, nil] forState:UIControlStateNormal];

But how can I translate this into Swift?

Answers:

The UITextAttributeFont was deprecated in iOS 7. You should use the NS variant instead:

import UIKit

let appearance = UITabBarItem.appearance()
let attributes = [NSFontAttributeName:UIFont(name: "American Typewriter", size: 20)]
appearance.setTitleTextAttributes(attributes, forState: .Normal)

Questions:
Answers:

Here is Swift 3.0 solution

UITabBarItem.appearance().setTitleTextAttributes([NSFontAttributeName: UIFont(name: "Font-Name", size: 10)!], for: .normal)
UITabBarItem.appearance().setTitleTextAttributes([NSFontAttributeName: UIFont(name: "Font-Name", size: 10)!], for: .selected)

Questions:
Answers:

In addition @Mc.Lover ‘s answer, If you want to aplly this change to all of your tab bar Items in application, I recommand to add the code in application function of AppDelegate class:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    //Just add this line to get it done.       
    UITabBarItem.appearance().setTitleTextAttributes([NSFontAttributeName: UIFont(name: "IranSansMobile", size: 15)!], for: UIControlState.normal)

    return true
}

Questions:
Answers:

Put this under didFinishLaunchingWithOptions:

UITabBarItem.appearance()
    .setTitleTextAttributes(
        [NSAttributedStringKey.font: UIFont(name: "Didot", size: 10)!], 
    for: .normal)

This works in Swift 4