Can you send sms without using the native ios application? - ios

Question

I have seen several tutorials to send SMS messages but all open the native iOS message application and what I want is that my application send it without changing application that is sending something invisible to the user.
This is the code I'm using but opens the native application:
#pragma mark - IBAction methods
-(IBAction)sendSMS:(id)sender {
//check if the device can send text messages
if(![MFMessageComposeViewController canSendText]) {
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:#"Advertencia" message:#"Su dispositivo no permite el envio de mensajes SMS" delegate:nil cancelButtonTitle:#"Aceptar" otherButtonTitles:nil];
[alert show];
return;
}
//set receipients - telefonos
NSArray *recipients = [NSArray arrayWithObjects:textNumero.text, nil];
NSLog(#"telefono: %#",recipients);
//set message text
NSString * message = textMensaje.text;
NSLog(#"mensaje: %#",recipients);
MFMessageComposeViewController *messageController = [[MFMessageComposeViewController alloc] init];
messageController.messageComposeDelegate = self;
[messageController setRecipients:recipients];
[messageController setBody:message];
// Present message view controller on screen
[self presentViewController:messageController animated:YES completion:nil];
}
#pragma mark - MFMailComposeViewControllerDelegate methods
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult) result
{
switch (result) {
case MessageComposeResultCancelled:
break;
case MessageComposeResultFailed:
{
UIAlertView *warningAlert = [[UIAlertView alloc] initWithTitle:#"Advertencia" message:#"Ha ocurrido un error en el envio del mensaje" delegate:nil cancelButtonTitle:#"Aceptar" otherButtonTitles:nil];
[warningAlert show];
break;
}
case MessageComposeResultSent:
break;
default:
break;
}
[self dismissViewControllerAnimated:YES completion:nil];
}