Open NSURL

gistfile1.txt

    NSURL *url = [NSURL URLWithString:@"http://maps.google.com/maps?q=pizza"];  [[UIApplication sharedApplication]openURL:url];
    
    NSString *url = @"mailto:846745250@qq.com?subject=User Feedback!&body=fuck you";

    url = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
    
    
     [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://itunesconnect.apple.com"]];