mahmudahsan

import UIKit
import PlaygroundSupport

//to run serial queue in playground always make the following true
PlaygroundPage.current.needsIndefiniteExecution = true

let mainQueue   = DispatchQueue.main
let globalQueue = DispatchQueue.global()
let serialQueue = DispatchQueue(label: "net.ithinkdiff.app")
let concurQueue = DispatchQueue(label: "net.ithinkdiff.app.concurr", attributes: .concurrent)

mahmudahsan

var score:Int?
score = 100
//if score is nil the if block will not work
/*if score has value, the if block create a new constant score and assign the score value to the new constant score which is unwrapped and available within the if block
*/
if let score = score{
    score
}
score ?? 0 //provide a default value when there is nil
score!  //when u sure the optional must have a value other than nil

mahmudahsan

var x // error

var x:Int // okay

mahmudahsan

struct Device {
    // iDevice detection code
    static let IS_IPAD             = UIDevice.current.userInterfaceIdiom == .pad
    static let IS_IPHONE           = UIDevice.current.userInterfaceIdiom == .phone
    static let IS_RETINA           = UIScreen.main.scale >= 2.0
    
    static let SCREEN_WIDTH        = Int(UIScreen.main.bounds.size.width)
    static let SCREEN_HEIGHT       = Int(UIScreen.main.bounds.size.height)
    static let SCREEN_MAX_LENGTH   = Int( max(SCREEN_WIDTH, SCREEN_HEIGHT) )
    static let SCREEN_MIN_LENGTH   = Int( min(SCREEN_WIDTH, SCREEN_HEIGHT) )

mahmudahsan

#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define IS_RETINA ([[UIScreen mainScreen] scale] >= 2.0)

#define SCREEN_WIDTH ([[UIScreen mainScreen] bounds].size.width)
#define SCREEN_HEIGHT ([[UIScreen mainScreen] bounds].size.height)
#define SCREEN_MAX_LENGTH (MAX(SCREEN_WIDTH, SCREEN_HEIGHT))
#define SCREEN_MIN_LENGTH (MIN(SCREEN_WIDTH, SCREEN_HEIGHT))

mahmudahsan

class Properties{
    static let sharedInstance = Properties()
    private let userDefaults:UserDefaults = UserDefaults()

    var fontSize:Double = 10.0{
        didSet{
            userDefaults.setValue(fontSize, forKey: "FONT_SIZE")
            userDefaults.synchronize()
            print("Font Size Saved")
        }

mahmudahsan

#!/usr/bin/ruby
#XCode modification

require 'xcodeproj'

bundleId = ARGV[0]
path = ARGV[1]

project_path = path + "/XCodeProject.xcodeproj"
puts(project_path)

mahmudahsan

def modifyXCodeProjByRuby(bundleIdentifier, path):
    print("XCode Project Modified by Ruby")
    rubyModifyCommand   = "ruby RUBY_FILE_NAME.rb " + "\"" + bundleIdentifier + "\"" + " " + "\"" + path + "\""
    print(rubyModifyCommand)
    os.system(rubyModifyCommand)

mahmudahsan

import os
import shutil
import subprocess
import plistlib

mahmudahsan

try:
        removeIcons = "/app_directory/app_name/Images.xcassets/AppIcon.appiconset"
        shutil.rmtree(removeIcons)
        print("Icons deleted")
except:
        print("ERROR: Icons not found")