iPhone UIWebview Loads on Simulator But not on Device

Question

I have a UIWebview on a Tab Bar that loads properly on the Simulator but not on the Device. Has anyone ever come across this situation? I've been looking all over the Google- machine for the last three days to no avail. Any help would be hugely appreciated.

Answer 1

I faced the same problem. The solution evaded me a lot of time, but what I discovered was that I had:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
    NSLog(@"shouldStartLoadWithRequest Loading: %@", [request URL]);
}

and I did not return any thing from this. When I changed it to

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
    NSLog(@"shouldStartLoadWithRequest Loading: %@", [request URL]);
        return TRUE;

}

it works. Simulator does not care if you returned a BOOL or not, but the actual device, it does not work.

Answer 2

First check your connectivity. Are you able to access both URLs (about and PHP page) from Safari on the device?

Then I suggest you stick some error handling code in your UIWebViewDelegate. So something like :

- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{
    // load error, hide the activity indicator in the status bar
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

    if ([error code] == NSURLErrorCancelled) {
        // don't show the error

        // if you want to know why I ignore these errors
        // check out this question:
        // http://stackoverflow.com/questions/1577670
        return;
    }   

    [webView loadHTMLString:[[[NSString alloc] initWithFormat:@"Failed to load page %@ %08d", [error localizedDescription, [error code]]] autorelease] baseURL:nil];
}

Let us know how you go.