//
//  TwoViewController.swift
//  OJASwiftKitDemo
//
//  Created by luxiaoming on 2017/3/7.
//  Copyright © 2017年 luxiaoming. All rights reserved.
//

import UIKit


class TwoViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        self.view.backgroundColor = UIColor.blue
        // Do any additional setup after loading the view.
        
        NSLog("it is \(self)")
        
        let testButton = UIButton(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
        testButton.backgroundColor = UIColor.gray
        self.view.addSubview(testButton)
        testButton.addCallback { [weak self] (sender) in
            NSLog("it is \(String(describing: self?.presentingViewController))")
            
            
            if let strongSelf = self {
                strongSelf.title = "two"
                let threeViewController = ThreeViewController()
                strongSelf.present(threeViewController, animated: true, completion: {
                    
                })
            }
            
            
            
            
            
        }
        
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}