I added a view with app delegate class's button click. Like this:

In UnifeyeMobile\_templateAppDelegate.mm : 

```
- (IBAction)onBtnImageTracking:(id)sender {

// create our UnifeyeMobileViewController and present it
UnifeyeMobileImageTrackingViewController* unifeyeMobileViewController = [[UnifeyeMobileImageTrackingViewController alloc] initWithNibName:@"UnifeyeMobileImageTrackingViewController" bundle:nil];
unifeyeMobileViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[viewController presentModalViewController:unifeyeMobileViewController animated:YES];
[unifeyeMobileViewController release];
}

```

And I want to back from added UnifeyeMobileImageTrackingViewController's view to main app delegate class view. I put a button for back. But I dont know how to do this? Please help me.