與截圖後更改URL中的WebView問題已經採取

Question

基本上正如標題所說，我有我的WebViewAppDelegate一些問題

https://github.com/austin4195/Nucleus-iOS/blob/master/Classes/WebViewAppDelegate.m

線5-48，但我相信這個問題是用什麼定義將存儲該值的項目

謝謝！

Answer 1

有很多的問題與您的代碼：

• 你要排隊36 return語句，所以你的代碼不會被調用。
• screenshotTaken應宣佈在application:didFinishLaunchingWithOptions:之外。

• 您應該使用self.webViewController.theWebView而不是webViewController.webView。

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  
      navigationController = [[UINavigationController alloc] init]; 
      navigationController.navigationBar.hidden = YES; 
      navigationController.toolbar.barStyle = UIBarStyleBlack; 
      WebViewController *webViewController = [[WebViewController alloc] init]; 
      webViewController.urlString = @"http://files.austinapps.org/File%20Site"; 
      [navigationController pushViewController:webViewController animated:NO]; 
      [webViewController release]; 
      [self.window setRootViewController:navigationController]; 
      [self.window makeKeyAndVisible]; 
      self.webViewController = webViewController; 
      [[NSNotificationCenter defaultCenter] addObserver:self 
                selector:@selector(screenshotTaken) 
                name:UIApplicationUserDidTakeScreenshotNotification 
                object:application]; 
      return YES; 
  } 
  
  - (void)screenshotTaken{ 
      [self.webViewController.theWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://website.com/"]]]; 
  }