Question

Hi I tried using this to open the maps app with current location and get directions to whatever I put for the directions. When I click the button on my iPhone nothing happens but it’s being clicked. What am I doing wrong?

NSString *url = [NSString stringWithFormat: @"http://maps.google.com/maps?saddr=Current+Location&daddr=%@ %@ %@ %@",
                     streetString , cityString, stateString, zipString];
    [[UIApplication sharedApplication] openURL: [NSURL URLWithString: url]];

Answer 1

Make sure you’re escaping the the NSString using stringByAddingPercentEscapesUsingEncoding

NSString *url = [NSString stringWithFormat: @"http://maps.google.com/mapssaddr=Current+Location&daddr=%@ %@ %@ %@", streetString , cityString, stateString, zipString];
url = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString: url]];