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copied!<p>You have to establish connection with your server e retrieve the value, following the sample cose</p> <p>test.php contains this instruction:</p> <pre><code><?php echo 40; ?> </code></pre> <p>here sample viewController.m with progress view linked via Interface Builder</p> <pre><code>#import "ViewController.h" @interface ViewController () { IBOutlet UIProgressView *progressView; NSMutableData *receivedData; } @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; progressView.progressTintColor = [UIColor lightGrayColor]; progressView.trackTintColor = [UIColor grayColor]; progressView.progress = 0.0f; NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://192.168.0.29/test.php"] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10.0]; NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if (!theConnection) { UIAlertView *connectFailMessage = [[UIAlertView alloc] initWithTitle:@"NSURLConnection " message:@"Failed in viewDidLoad" delegate: self cancelButtonTitle:@"Ok" otherButtonTitles: nil]; [connectFailMessage show]; } } #pragma mark NSURLConnection Methods - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { receivedData = [NSMutableData data]; [receivedData setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [receivedData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { // inform the user UIAlertView *didFailWithErrorMessage = [[UIAlertView alloc] initWithTitle: @"NSURLConnection " message: @"didFailWithError" delegate: self cancelButtonTitle: @"Ok" otherButtonTitles: nil]; [didFailWithErrorMessage show]; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSString *dataString = [[NSString alloc] initWithData: receivedData encoding:NSUTF8StringEncoding]; progressView.progress = [dataString floatValue] / 100; } @end </code></pre>

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