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dimohamdy / imageautoLayout
Last active Nov 23, 2015
UIImageView aspect fill
View imageautoLayout
This preserves aspect, fills it up, and then clips overflows:
self.viewTitleImageView.contentMode = UIViewContentModeScaleAspectFill;
[self.viewTitleImageView setClipsToBounds:YES];
dimohamdy / Label Font
Last active Jan 22, 2017
Change Font name Without change font size
View Label Font
UILabel.appearance().defaultFont = UIFont.systemFont(ofSize: 15/*Any Value*/, weight: UIFontWeightThin)
extension UILabel{
dynamic var defaultFont: UIFont? {
get { return self.font }
set {
let sizeOfOldFont = self.font.pointSize
let fontNameOfNewFont = newValue?.fontName
self.font = UIFont(name: fontNameOfNewFont!, size: sizeOfOldFont)
dimohamdy / Array IndexOutOfBoundsException
Created Jan 23, 2017
handle IndexOutOfBoundsException using try catch Swift 3
View Array IndexOutOfBoundsException
enum ArrayError: Error {
case OutOfBounds(min: Int, max: Int)
extension Array {
mutating func set(index:Int, value: Element) throws {
guard self.indices.contains(index) else {
dimohamdy / strong password
Created May 30, 2017
check if password is strong using swift
View strong password
check if the password lenght more than or equal 8
and have lowercase , uppercase ,decimalDigits and special characters like !@#$%^&*()_-+ is optional
Why i not use regular expression ?
Because it's difficult to support reserved characters in regular expression syntax.
func isValidated(_ password: String) -> Bool {
var lowerCaseLetter: Bool = false
dimohamdy / KeyPath.swift
Last active Jun 1, 2017
Accessing Dictionaries with Key Paths
View KeyPath.swift
Thanks for @olebegemann
code of keypath from this link
struct KeyPath {
var segments: [String]
var isEmpty: Bool { return segments.isEmpty }
dimohamdy /
Created Dec 6, 2017
add Version to icon Xcode 9
export PATH=/opt/local/bin/:/opt/local/sbin:$PATH:/usr/local/bin:
convertPath=`which convert`
gsPath=`which gs`
if [[ ! -f ${convertPath} || -z ${convertPath} ]]; then
dimohamdy / Remove Realm
Created Dec 27, 2018
Remove realm to work with watchos
View Remove Realm
pod cache clean Realm
pod cache clean RealmSwift
pod deintegrate || rm -rf Pods
pod install --verbose
rm -rf ~/Library/Developer/Xcode/DerivedData
View UIViewController+RetainCycle.swift
import UIKit
extension UIViewController {
static let classInit: Void = {
let originalSelector = #selector(viewDidDisappear)
let swizzledSelector = #selector(swizzled_viewDidDisappear)
swizzling(UIViewController.self, originalSelector, swizzledSelector)
View Appdelegate.swift
override init() {
dimohamdy / Swizzling.swift
Last active Jan 2, 2019
Generic function to exchange function
View Swizzling.swift
let swizzling: (AnyClass, Selector, Selector) -> Void = { forClass, originalSelector, swizzledSelector in
let originalMethod = class_getInstanceMethod(forClass, originalSelector),
let swizzledMethod = class_getInstanceMethod(forClass, swizzledSelector)
else { return }
method_exchangeImplementations(originalMethod, swizzledMethod)
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