Question

我正在尝试推送到新视图并在该视图中向webview发送网址，但它没有获取网址请求。 storyLink是在早些时候声明的，但即使我尝试请求http://www.google.com它也不起作用，所以我知道问题是由于某种原因它不接受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的下一个视图中声明一个属性，并从父视图设置值。

例如，在DetailViewController.h文件中设置以下代码

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

在DetailViewController.m文件中...... @synthesize请求;

并修改您当前的代码，如下所示......

    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];

参考您的代码......：

以下是您必须在代码中修改的一些遗漏内容，它将开始正常工作。

为UIWebview控件设置委托。

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

在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

在DetailViewController.m中添加UIWebview的委托方法，如下所示...

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

替换

中的以下代码

- (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];
    }
}

UITableView推送到URL帮助

1 个答案: