Question

我也用过这个：

@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:@"My Alert Title" message:message delegate:self cancelButtonTitle:@"Okay" otherButtonTitles:nil];
    [dialogue show];
}

Answer 1

您必须使用UIAlertView的委托

- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame {
    UIAlertView *dialogue = [[UIAlertView alloc] initWithTitle:@"My Alert Title" message:message delegate:self cancelButtonTitle:@"Okay" otherButtonTitles:nil];
    dialogue.tag = 1;
    [dialogue show];
}


-(void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (alertView.tag == 1) {
         if (buttonIndex == alertView.cancelButtonIndex) {
             //Do something here
         }
    }
}

Answer 2

您可以在Javascript中显示提醒 - 这看起来与UIAlertView完全相同。然后在解除警报时，将用户重定向到Javascript中的“someaction：//”。在设备上，实现UIWebViewDelegate的{{1}}，如下所示：

webView:shouldStartLoadWithRequest:navigationType:

如何处理警报单击从UIWebview生成警报的位置。

2 个答案: