覆蓋func viewDidLoad

Question

我該如何解決這個問題？告訴我，viewDidLoad被宣佈2次，但我可以統一整個過程？

import UIKit 
import MessageUI 
import CoreData 
import MediaPlayer 
import AVFoundation 

class ViewController: UIViewController, UISearchBarDelegate, MFMailComposeViewControllerDelegate, MPMediaPickerControllerDelegate, AVAudioPlayerDelegate { 
     override func viewDidLoad() { 
     super.viewDidLoad() 

     title = "Media picker..." 

     buttonPickAndPlay = UIButton.buttonWithType(.System) as? UIButton 

     if let pickAndPlay = buttonPickAndPlay{ 
      pickAndPlay.frame = CGRect(x: 0, y: 0, width: 200, height: 37) 
      pickAndPlay.center = CGPoint(x: view.center.x, y: view.center.y - 50) 
      pickAndPlay.setTitle("Pick and Play", forState: .Normal) 
      pickAndPlay.addTarget(self, 
       action: "displayMediaPickerAndPlayItem", 
       forControlEvents: .TouchUpInside) 
      view.addSubview(pickAndPlay) 
     } 

     buttonStopPlaying = UIButton.buttonWithType(.System) as? UIButton 

     if let stopPlaying = buttonStopPlaying{ 
      stopPlaying.frame = CGRect(x: 0, y: 0, width: 200, height: 37) 
      stopPlaying.center = CGPoint(x: view.center.x, y: view.center.y + 50) 
      stopPlaying.setTitle("Stop Playing", forState: .Normal) 
      stopPlaying.addTarget(self, 
       action: "stopPlayingAudio", 
       forControlEvents: .TouchUpInside) 
      view.addSubview(stopPlaying) 
     } 
    } 

    @IBOutlet weak var Subject: UITextField! 


    @IBOutlet weak var Body: UITextView! 

    @IBOutlet weak var searchBar: UISearchBar! 

    @IBOutlet weak var webView: UIWebView! 


    override func viewDidLoad() { 
     super.viewDidLoad() 


     searchBar?.delegate = self 

     let url = NSURL(string: "http://www.google.com") 
     let request = NSURLRequest(URL: url!) 

     webView?.scalesPageToFit = true 
     webView?.loadRequest(request) 

    } 

}

Answer 1

一個兩個的身體剛剛進入另外一個，除了這行super.viewDidLoad()，必須調用一次：

override func viewDidLoad() { 
    super.viewDidLoad() 

    title = "Media picker..." 

    buttonPickAndPlay = UIButton.buttonWithType(.System) as? UIButton 

    if let pickAndPlay = buttonPickAndPlay{ 
     pickAndPlay.frame = CGRect(x: 0, y: 0, width: 200, height: 37) 
     pickAndPlay.center = CGPoint(x: view.center.x, y: view.center.y - 50) 
     pickAndPlay.setTitle("Pick and Play", forState: .Normal) 
     pickAndPlay.addTarget(self, 
      action: "displayMediaPickerAndPlayItem", 
      forControlEvents: .TouchUpInside) 
     view.addSubview(pickAndPlay) 
    } 

    buttonStopPlaying = UIButton.buttonWithType(.System) as? UIButton 

    if let stopPlaying = buttonStopPlaying{ 
     stopPlaying.frame = CGRect(x: 0, y: 0, width: 200, height: 37) 
     stopPlaying.center = CGPoint(x: view.center.x, y: view.center.y + 50) 
     stopPlaying.setTitle("Stop Playing", forState: .Normal) 
     stopPlaying.addTarget(self, 
      action: "stopPlayingAudio", 
      forControlEvents: .TouchUpInside) 
     view.addSubview(stopPlaying) 
    } 

    /// 

    searchBar?.delegate = self 

    let url = NSURL(string: "http://www.google.com") 
    let request = NSURLRequest(URL: url!) 

    webView?.scalesPageToFit = true 
    webView?.loadRequest(request) 
} 

只是珍玩，爲什麼你是否宣佈這種方法兩次？