AttiaMo

for family: String in UIFont.familyNames
     {
         print("\(family)")
         for names: String in UIFont.fontNames(forFamilyName: family)
         {
                print("== \(names)")
         }
     }

AttiaMo

 func setupGlobalAppearance(){
        
    //global Appearance settings
     let customFont = UIFont.appRegularFontWith(size: 17)
     UIBarButtonItem.appearance().setTitleTextAttributes([NSAttributedStringKey.font: customFont], for: .normal)
     UITextField.appearance().substituteFontName = Constants.App.regularFont
     UILabel.appearance().substituteFontName = Constants.App.regularFont
     UILabel.appearance().substituteFontNameBold = Constants.App.boldFont
        
  }

AttiaMo

import Foundation
import UIKit
extension UILabel {
    var substituteFontName : String {
        get { return self.font.fontName }
        set {
            if self.font.fontName.range(of:"-Bd") == nil {
                self.font = UIFont(name: newValue, size: self.font.pointSize)
            }
        }

AttiaMo

extension UIFont {
    class func appRegularFontWith( size:CGFloat ) -> UIFont{
        return  UIFont(name: "HelveticaNeueW23forSKY-Reg", size: size)!
    }
    class func appBoldFontWith( size:CGFloat ) -> UIFont{
        return  UIFont(name: "HelveticaNeueW23foSKY-Bd", size: size)!
    }    
}

AttiaMo

//self.statusLabel.font = UIFont.UIFont(name: "HelveticaNeueW23forSKY-Reg", size: 17)
// Or you can replace it with
// You can use it for Labels, TextFields, TextViews ..etc
self.statusLabel.font = UIFont.appRegularFontWith(size: 17)

AttiaMo

class var hasTopNotch: Bool {
    if #available(iOS 11.0, tvOS 11.0, *) {
        // with notch: 44.0 on iPhone X, XS, XS Max, XR.
        // without notch: 20.0 on iPhone 8 on iOS 12+.
        return UIApplication.shared.delegate?.window??.safeAreaInsets.top ?? 0 > 20
    }
    return false
}

AttiaMo

class var isIphoneXOrBigger: Bool {
    // 812.0 on iPhone X, XS.
    // 896.0 on iPhone XS Max, XR.
    return UIScreen.main.bounds.height >= 812
}