How can I use progressView during URL is loading?

Question

I want the progressView working while my URL is loading. What should I do for that?

here's my .m code:

-(void)openURL{
UIWebView *webView = [[UIWebView alloc] init];
[webView setFrame:CGRectMake(0, 0, 320, 460)];
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"]]];
[[self view] addSubview:webView];
}

- (IBAction)goto:(id)sender {


[self openURL];
}

Answer 1

You could do something like this

[progressView startAnimating];

dispatch_async(dispatch_get_main_queue(), ^{
    [webView loadRequest:yourRequest];

    [progressView stopAnimating];
    [progressView removeFromSuperView];
}

This will start the progress view before the operation begins, and will stop and remove it when it finishes.

Answer 2

Implement UIWebViewDelegate, specifically:

-(void)openURL{
    UIWebView *webView = [[UIWebView alloc] init];
    webView.delegate = self;
    // ... rest of method as above ...
}

- webViewDidStartLoad:(UIWebView *)webView {
    // Start progress.
}

- webViewDidFinishLoad:(UIWebView *)webView {
    // Stop progress.
}