参考文档 Using and Creating Error Objects
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error {
NSString *errorMsg;
if ([[error domain] isEqualToString:NSURLErrorDomain]) {
switch ([error code]) {
case NSURLErrorCannotFindHost:
errorMsg = NSLocalizedString(@"Cannot find specified host. Retype URL.", nil);
break;
case NSURLErrorCannotConnectToHost:
errorMsg = NSLocalizedString(@"Cannot connect to specified host. Server may be down.", nil);
break;
case NSURLErrorNotConnectedToInternet:
errorMsg = NSLocalizedString(@"Cannot connect to the internet. Service may not be available.", nil);
break;
default:
errorMsg = [error localizedDescription];
break;
}
} else {
errorMsg = [error localizedDescription];
}
UIAlertView *av = [[UIAlertView alloc] initWithTitle:
NSLocalizedString(@"Error Loading Page", nil)
message:errorMsg delegate:self
cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
[av show];
}
