mohsinbmwm3

import UIKit

extension UIView {
    func addConstraintToLayoutSubviewInCenter(_ subview: UIView, size: CGSize? = nil) {
        subview.translatesAutoresizingMaskIntoConstraints = false
        subview.centerXAnchor.constraint(equalTo: centerXAnchor, constant: 0).isActive = true
        subview.centerYAnchor.constraint(equalTo: centerYAnchor, constant: 0).isActive = true
        if let _size = size {
            subview.widthAnchor.constraint(equalToConstant: _size.width).isActive = true
            subview.heightAnchor.constraint(equalToConstant: _size.height).isActive = true

mohsinbmwm3

import UIKit

extension NSNotification.Name {
    static var userLoggedInSuccessfully: NSNotification.Name { NSNotification.Name(rawValue: "userLoggedInSuccessfully") }
    static var userLoggedOutSuccessfully: NSNotification.Name { NSNotification.Name(rawValue: "userLoggedOutSuccessfully") }
    static var appEnteredInForeground: NSNotification.Name { NSNotification.Name(rawValue: "appEnteredInForeground") }
}

mohsinbmwm3

import UIKit

extension UIApplication {
    func openSetting() {
        if let _url = URL(string: UIApplication.openSettingsURLString), canOpenURL(_url) {
            open(_url, options: [:], completionHandler: nil)
        }
    }
    func clearNotificationBadge() {
        applicationIconBadgeNumber = 0

mohsinbmwm3

import Foundation

extension Bundle {
    var appName: String? {
        return Bundle.main.infoDictionary?["CFBundleName"] as? String
    }
    var appVersion: String? {
        return Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String
    }
    var bundleVersion: String? {

mohsinbmwm3

import UIKit

extension UIImage {
    func resize(height: CGFloat, width: CGFloat) -> UIImage {
        UIGraphicsBeginImageContext(CGSize(width: width, height: height))
        draw(in: CGRect(x: 0, y: 0, width: width, height: height))
        let resizedImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return resizedImage!
    }

mohsinbmwm3

import Foundation

extension UIAlertController {
    static func showSimpleAlert(title: String, message: String, context: UIViewController) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
        context.present(alert, animated: true, completion: nil)
    }
    static func showSimpleAlert(title: String, message: String, okButtonTitle: String, okButtonAction: (@escaping () -> ()), context: UIViewController) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)

mohsinbmwm3

import Foundation

extension Array {
    var isNotEmpty: Bool {
        return !isEmpty
    }
}

mohsinbmwm3

import UIKit

// Its better to create custom font name as constant to avoid spelling mistakes when using this.
extension String {
    static let appCustomFontRegular = "Montserrat"
    static let appCustomFontBold = "Montserrat-Bold"
}

extension UIFont {
    static func appRegularFont(size: CGFloat) -> UIFont {

mohsinbmwm3

import Foundation

extension DateFormatter {
    static let instance = DateFormatter()
    // You can also add multiple date formatters, creating date formater is very heavy task, 
    // It is not advisable to create instance of it every time you want to use it.
}
extension Calendar {
    // Shorthands for different calendar
    static let gregorianCalendar = Calendar(identifier: .gregorian)

mohsinbmwm3

import Foundation

extension String {
    var wordCount: Int {
        let regex = try? NSRegularExpression(pattern: "\\w+")
        return regex?.numberOfMatches(in: self, range: NSRange(location: 0, length: self.utf16.count)) ?? 0
    }
    func toInt() -> Int? {
        return Int(self)
    }