我可以在UIWebViewDelegate中处理警报吗？

解决此问题的更好方法是为该方法创建UIWebView的类别

webView:runJavaScriptAlertPanelWithMessage:initiatedByFrame:

这样您就可以以任何方式处理警报事件.我这样做是因为我不喜欢UIWebView的默认行为,因为它将源文件名放在UIAlertView标题中.类别看起来像这样,

@interface UIWebView (JavaScriptAlert) 

- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame;

@end

@implementation UIWebView (JavaScriptAlert)

- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
    UIAlertView* dialogue = [[UIAlertView alloc] initWithTitle:nil message:message delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil];
    [dialogue show];
    [dialogue autorelease];
}

@end