Tulakshana

import Foundation
import CoreBluetooth
import CoreLocation

class Beacon: NSObject {
    
    static let shared = Beacon()
    
    var localBeacon: CLBeaconRegion!
    var beaconPeripheralData: [String: AnyObject]?

Tulakshana

import UIKit

class CustomSlider: UISlider {

    private var toolTip: ToolTipPopupView?
    
    override func awakeFromNib() {
        super.awakeFromNib()
        
        self.initToolTip()

Tulakshana

//
//  MovieTransitionsVC.swift
//  VideoAnimations
//
//  Created by Tula on 2018-06-14.
//  Copyright © 2018 Tula. All rights reserved.
//

import UIKit
import AVFoundation

Tulakshana

    @IBAction func btnExit0Tapped (sender: UIButton) {
        exit(0) // Not recommended by Apple https://developer.apple.com/library/content/qa/qa1561/_index.html and app crashes
    }
    
    @IBAction func btnSuspendTapped (sender: UIButton) {
        UIControl().sendAction(#selector(URLSessionTask.suspend), to: UIApplication.shared, for: nil) // App exits gracefully
    }
    
    @IBAction func btnFatalErrorTapped (sender: UIButton) {
        fatalError() // App will crash

Tulakshana

    func stringByReplacing(charSet: CharacterSet, with string: String) -> String {
        let components = self.components(separatedBy: charSet)
        return components.joined(separator: string)
    }

Tulakshana

extension UIView {
    
    func frameOfFirstResponder() -> CGRect? {
        if self.isFirstResponder {
            return self.frame
        }
        for view in self.subviews {
            if let frame = view.frameOfFirstResponder() {
                return frame
            }

Tulakshana

class CustomButton: UIButton {
    @IBInspectable private var enabledBackgroundColor: UIColor?
    @IBInspectable private var disabledBackgroundColor: UIColor?
    
    override var isEnabled: Bool {
        set {
            if newValue {
                self.backgroundColor = enabledBackgroundColor
            } else {
                self.backgroundColor = disabledBackgroundColor

Tulakshana

enum FontName: String {
    case timesNewRoman = "TimesNewRomanPSMT"
    case timesNewRomanItalic = "TimesNewRomanPS-ItalicMT"
    case timesNewRomanBold = "TimesNewRomanPS-BoldMT"
}

extension UIFont {
    
    class var sanFranciscoRegular: UIFont {
        if let font = UIFont.init(name: "SFUIText-Regular", size: 15) {

Tulakshana

+ (NSString *) encodeString: (NSString *) string {
	
	NSMutableString *output = [NSMutableString string];
	const unsigned char *source = (const unsigned char *)[string UTF8String];
	int sourceLen = (int)strlen((const char *)source);
	for (int i = 0; i < sourceLen; ++i) {
		const unsigned char thisChar = source[i];
		if (thisChar == ' '){
			[output appendString:@"%20"];
		} else if (thisChar == '.' || thisChar == '-' || thisChar == '_' || thisChar == '~' ||

Tulakshana

import UIKit

@objc class MyAPI: NSObject {
    
    static let keyError: String = "Error"
    static let keyResult: String = "Result"
  
    static let unknownError: String = "Unknown error"
    
    static let notificationMyAPIDidEnd = Notification.Name(rawValue: "notificationMyAPIDidEnd")