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POShow activity indicator animation when button pressed
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  1. POShow activity indicator animation when button pressed
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    copied!<p>I have a button called "Sync". When tapped / pressed it sends data to a webserver and retrieves the answer by the server (what takes a while and freezes the gui / button) so how do I add a "Please wait" and activity indicator until the data / answer from the server arrives and the text / indicator is deleted and replaced by the answer from the server? </p> <p>This code freezes my app:</p> <pre><code>- (IBAction) syncButtonTapped { [syncButton setEnabled:NO]; //resultText.text= @"Bitte warten ..."; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *docDir = [paths objectAtIndex: 0]; NSString *docFile = [docDir stringByAppendingPathComponent: @"deck.txt"]; NSString *post = [NSString stringWithContentsOfFile:docFile encoding:NSUTF8StringEncoding error:nil]; NSString *post2 = [post stringByReplacingOccurrencesOfString:@"\n" withString:@","]; NSString *post3 = [post2 stringByReplacingOccurrencesOfString:@"\r" withString:@""]; NSString *post4 = [NSString stringWithFormat:@"{\"results\":[%@]}",post3]; NSString *urlString = [NSString stringWithFormat:@"http://storecheck.cortona.de/fetchresults.php?results=%@",[post4 stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding]]; NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:urlString]]; [request setHTTPMethod:@"GET"]; NSString *data4 = @""; [data4 writeToFile: docFile atomically: NO encoding: NSUTF8StringEncoding error:nil]; //send request &amp; get response NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; } </code></pre> <p>i am working on a Mac Mini with iOS 10.6.7</p>
 

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