Những thứ cần thiết khi học lập trình iOS

Cơ bản: Action, Outlet, Closure (Block)  -> Callback
UITableView (indexPath), Custom
UIWebView
AutoLayout
Vòng đời UIViewController, AppDelegate


     super.viewWillAppear(animated)
        self.navigationController?.navigationBarHidden = false
        let notificationCenter = NSNotificationCenter.defaultCenter()
        notificationCenter.addObserver(self, selector: #selector(handleKeyboardWillShowNotification(_:)), name: UIKeyboardWillShowNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(handleKeyboardWillHideNotification(_:)), name: UIKeyboardWillHideNotification, object: nil)

        profileSettingViewTable.reloadData()
    }

    override func viewDidDisappear(animated: Bool) {
        super.viewDidDisappear(animated)
        let notificationCenter = NSNotificationCenter.defaultCenter()
        notificationCenter.removeObserver(self, name: UIKeyboardWillShowNotification, object: nil)
        notificationCenter.removeObserver(self, name: UIKeyboardWillHideNotification, object: nil)
    }


        func handleKeyboardWillShowNotification(notification: NSNotification) {
        if let userInfo = notification.userInfo where isHandleWhenShowKeyboard == true {
            if let keyboard = userInfo[UIKeyboardFrameEndUserInfoKey] as? NSValue{
                let keyBoardRect = keyboard.CGRectValue()
                let heightKeyboard = keyBoardRect.size.height
                let heightScreen = UIScreen.mainScreen().bounds.height
  				// ...
            }
        }
    }

    func handleKeyboardWillHideNotification(notification: NSNotification) {
        topTableViewConstraint.constant = 0
    }

Thư viện hay sử dụng: AFNetworking (Alamofire), SDWebImage

Project Example: https://github.com/framgia/fels_137/tree/develop
https://viblo.asia/u/nguyen.van.thieub

Quản lý bộ nhớ: http://laptrinhios.vn/quan-ly-bo-nho-trong-ios-memory-management/

UIViewController Life Cycle https://i.stack.imgur.com/g19fw.png
Application Life Cycle https://i.stack.imgur.com/URh6p.png