Question

我在UIWebView中加载网址时遇到的问题非常小。我有一个UIButton，点击它后，我添加UIView，其中包含UIWebView，UIButton＆amp; Title bar。使用的代码如下 -

    [self.view addSubview:vwOnline];
    vwOnline.bounds = self.view.bounds;

    //Load webview
    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@", objWine.strOnlineURL]];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [wbvwOnline loadRequest:request];

- (void)webViewDidStartLoad:(UIWebView *)webView
{
    //Show activity indicator
    [indicator startAnimating];
}

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    //Remove Activity indicator
    [indicator stopAnimating];
    [indicator removeFromSuperview];
}

- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{
    NSLog(@"Error - %@", error);

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Find A Vino" message:@"Error while loading request." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [alert show];
    alert.tag = 1;

    //Remove Activity indicator
    [indicator stopAnimating];
    [indicator removeFromSuperview];
}

通过执行上述代码，UIWebView的大部分时间都不会加载我在对象URL中传递的objWine.strOnlineURL。如果我点击后退按钮＆amp;再次单击按钮以加载URL，它将进入- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error UIWebView委托方法。如果有人知道解决方案，请帮助我。

Answer 1

当您返回时，请求nil并将空htmlstring加载到webview。还有一件事，从

中删除[indicator removeFromSuperview];行

- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error 
-(void)webViewDidFinishLoad:(UIWebView *)webView

Answer 2

不是每次都在webview点击上添加button。为什么不在webview点击中将viewDidLoad添加到hide和show以及button。

Answer 3

使用

NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://www.google.com"]];

如果工作正常，请检查objWine.strOnlineURL

否则很清楚：）

UIWebView不加载URL

3 个答案: