hossamghareeb

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
   //.. do other setup

    CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;
    
    // Transition neatly from splash screen
    
    // Very odd, on iPhone 5 you need to position the splash screen differently..

hossamghareeb

Converting your screencast/screen recording to Gif is not a big deal. All you need:
1. QuickTime Player to record your screen OR video file if you already have the video that you wanna convert
2. ffmpeg installed in mac

First of all, install HomeBrew using the following command

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Then install ffmpeg using the following commmand:

hossamghareeb

extension String {
    var ascii: Int {
        guard let u = UnicodeScalar(self) else { return -1 }
        return Int(u.value)
    }
}

"a".ascii // 97
"A".ascii // 65

hossamghareeb

extension Decimal {
    var intValue: Int {
        return NSDecimalNumber(decimal: self).intValue
    }
}

extension Int {
    func digitAt(i: Int) -> Int {
        let div = pow(10, i).intValue
        let x = self / div

hossamghareeb

var dic = [String: Int]()
dic["hello", default: 0] += 1
dic // ["hello": 1]

func parse(_ string: String) -> String {
    switch Int(string) {
    case .some(7): return "SEVEN"
    case 5?: return "FIVE"
    case let x? where x < 10: return "1-9"
    default: return "Not valid INT"

hossamghareeb

/**
 Returns index of item if found. Otherwise returns -1 * position where the item should be insertd to
 */
func binarySearch(arr: [Int], start: Int, end: Int, k: Int) -> Int {
    var start = start
    var end = end
    var mid = 0
    while start <= end {
        mid = start + (end - start) / 2
        if arr[mid] == k {

hossamghareeb

var arr = [1, 2, 5, 5, 6, 7, 10]
let pivot = arr.partition { $0 % 2 == 0 }
arr // [1, 7, 5, 5, 6, 2, 10]
let part1 = arr[..<pivot] // odd numbers
let part2 = arr[pivot...] // even numbers

hossamghareeb

    private func swizzle(method: String, of class: String, to newMethod: String) {
        
        let original: Method
        let swizzled: Method
        guard let aClass = objc_getClass(`class`) as? AnyClass else { return }
        original = class_getInstanceMethod(aClass, Selector((method)))!
        swizzled = class_getInstanceMethod(aClass, Selector((newMethod)))!
        method_exchangeImplementations(original, swizzled)
    }
    

hossamghareeb

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        updateTableViewHeaderHeight()
    }
    
    private func updateTableViewHeaderHeight() {
        guard let headerView = tableView.tableHeaderView else { return }
        /// Get the size that should meet the constraints
        let size = headerView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
        guard size.height != headerView.frame.height else { return }

hossamghareeb

struct Player {
    let name: String
    var score: Int = 0
}

let p1 = Player(name: "John")
let p2 = Player(name: "Sam", score: 100)