具有警报弹出的URL在UIWebview中不起作用，但适用于内置的iOS Safari

Question

我正在尝试打开一个从javascript弹出警报的网址。我在我的应用程序中有一个UIWebview调用url。我无法在UIWebview中加载该URL。我可以在哪种方式显示UIAlertview？请帮帮我。我在我的viewcontroller中完成了这些步骤

在我的.h文件中

@interface ViewController : UIViewController<UIWebViewDelegate>
@property (weak, nonatomic) IBOutlet UIWebView *webView;

@end

在我的.m文件中      - （void）viewDidLoad     {         [super viewDidLoad];         //在加载视图后进行任何其他设置，通常是从笔尖。

        NSString * strUrl  =  @"https://something-stg1.euw.abc.net/";
  //  NSString * strUrl  =  @"https://gmail.com";


        NSURLRequest * REQ =  [NSURLRequest requestWithURL:[NSURL URLWithString:strUrl]];

        _webView.delegate = self;

        [_webView loadRequest:REQ];


}


-(BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
    NSURL *url = request.URL;
    NSString *urlString = url.absoluteString;

    NSLog(@"urlstring is %@", urlString);

    // Only catching links without "mobile" in the url (i.e. stories)

    return YES;

}


- (void)loadRequest:(NSURLRequest *)request
{
}

- (void)webViewDidStartLoad:(UIWebView *)webView
{
    NSLog(@"webViewDidStartLoad");

}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    NSLog(@"webViewDidFinishLoad");

}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{

    NSLog(@"%@",[error description]);
}


- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}