切換NavigationItem標題與分段控制

Question

我有一個navigationitem和一個導航欄。導航項具有標題（和按鈕）和導航欄（導航項下方）具有分段控制。

如何在按下分段控件的一側時調整導航項的標題（objective-c）？

下面是從.m文件

if (segmentController.selectedSegmentIndex == 0) { 
      UIWebView *webview6=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)]; 
    NSString *url6=@"http://apple.com"; 
     NSURL *nsurl6=[NSURL URLWithString:url6]; 
      NSURLRequest *nsrequest6=[NSURLRequest requestWithURL:nsurl6]; 
     [webview6 loadRequest:nsrequest6]; 
webview6.scrollView.bounces = NO; 
     [self.view addSubview:webview6]; 
     [self.view bringSubviewToFront: navbar2]; 
    } 
    if (segmentController.selectedSegmentIndex == 1) { 
     UIWebView *webview7=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)]; 
     NSString *url7=@"http://yahoo.com"; 
     NSURL *nsurl7=[NSURL URLWithString:url7]; 
      NSURLRequest *nsrequest7=[NSURLRequest requestWithURL:nsurl7]; 
     [webview7 loadRequest:nsrequest7]; 
     webview7.scrollView.bounces = NO; 
     [self.view addSubview:webview7]; 
     [self.view bringSubviewToFront: navbar2]; 
     } 

代碼這裏是什麼樣子 -

Answer 1

使用self.navigationItem.title設置標題。