UITableView推送到URL幫助

Question

我想推到一個新的視圖，併發送一個網址到該視圖中的網絡視圖，但它沒有得到網址請求。 storyLink是早些時候宣佈的，但即使我嘗試請求http://www.google.com它甚至不工作，所以我知道問題是由於某種原因它不接受url。

DetailViewController *newviewController=[[[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil]autorelease]; 
      NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:storyLink]]; 
      [newviewController.rssview loadRequest:request]; 
      [self.navigationController pushViewController:newviewController animated:YES]; 

Answer 1

最好在NSURL的下一個視圖中聲明一個屬性並設置父視圖的值。

例如，在您的DetailViewController.h設置以下代碼文件

@interface DetailViewController : UIViewController 
    { 
      NSURL *request; 
    } 
    @property (nonatomic, assign) NSURL *request; 

在你DetailViewController.m文件... @synthesize請求;

並修改如下當前的代碼......

DetailViewController *newviewController=[[[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil]autorelease]; 
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:storyLink]]; 
    newviewController.request = request; 
    //[newviewController.rssview loadRequest:request]; 
    [self.navigationController pushViewController:newviewController animated:YES]; 

關於你的代碼...：

下面是一些你已經在你的代碼來修改缺少的東西，它會開始工作正常。

1. 設置UIWebview控件的委託。

   self.rssview.delegate = self; 
   [self.rssview loadRequest:self.request]; 
   

2. 在你的DetailViewController.h中，修改以下行。

   @interface DetailViewController : UIViewController <UIWebViewDelegate> 
   { 
       IBOutlet UIWebView *rssview; 
       NSURLRequest *request; 
   } 
   @property(nonatomic, retain, readonly)UIWebView *rssview; 
   @property (nonatomic, assign) NSURLRequest *request; 
   @end 
   

3. 在DetailViewController.m添加一個UIWebView的委託方法如下...

   - (BOOL)webView:(UIWebView *)myWebView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType 
   { 
       return YES; 
   } 
   

4. 更換繼

   - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
   { 
       int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; 
       NSString * storyLink = [[stories objectAtIndex: storyIndex] objectForKey: @"link"]; 
       // clean up the link - get rid of spaces, returns, and tabs... 
       storyLink = [storyLink stringByReplacingOccurrencesOfString:@" " withString:@""]; 
       storyLink = [storyLink stringByReplacingOccurrencesOfString:@"\n" withString:@""]; 
       storyLink = [storyLink stringByReplacingOccurrencesOfString:@" " withString:@""]; 
       storyLink = [storyLink stringByAddingPercentEscapesUsingEncoding: NSStringEncodingConversionAllowLossy]; 
       NSLog(@"link: %@", storyLink); 
       if(indexPath.row==0) 
       {  
        DetailViewController *newviewController=[[[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil]autorelease]; 
        NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:storyLink]]; 
        //[newviewController.rssview loadRequest:request]; 
        newviewController.request = request; 
        [self.navigationController pushViewController:newviewController animated:YES]; 
       } 
       else 
       { 
        DetailViewController *newviewController=[[[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil]autorelease]; 
        NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:storyLink]]; 
        //[newviewController.rssview loadRequest:request]; 
        newviewController.request = request; 
        [self.navigationController pushViewController:newviewController animated:YES]; 
       } 
   }