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I read several answers on the Unity forum, including here and only show how to create a subclass and present my first UIViewController. 

- (void)createViewHierarchyImpl { homeViewController = [[HomeViewController alloc] initWithNibName:@"HomeViewController" bundle:nil]; //_rootView = _unityView; _rootView = homeViewController.view; //_rootController = [[UnityDefaultViewController alloc] init]; _rootController = homeViewController; }

So far, so good.
The problem is that there are no examples for the new version of the Unity plugin that generates XCode, to show a UIViewController with Unity. 

-(void)goToUnity:(id)sender { NSLog(@"touch the button is OK"); UIViewController *app = [[UIViewController alloc] initWithNibName:@"UnityView" bundle:nil]; [self.navigationController pushViewController:app animated:YES]; }

Thus, nothing happens. Is there any way to call the Unity in "default" mode Xcode?

Thank you.

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2 Answers 2

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Read an read and read many times, test and erros many times, i finally do! Touch a UIButton and open or do whatever you imagine with it.

I will share here for those who need a more complete code.
Getting Started:
You need to create your own main file .h and .m to be "overruled" the Unity automatically:

mainAppController.h

#import "UnityAppController.h" #import "UI/UnityView.h" #import "iPhone_View.h" @interface mainAppController : UnityAppController { UnityAppController *_unityAppController; } - (void)createViewHierarchyImpl; @end

You have to import this H headers to controll Unity stuffs.

mainAppController.m

#import "mainAppController.h" @implementation mainAppController -(void)createViewHierarchyImpl { if(_unityAppController == nil) { _unityAppController = [[UnityAppController alloc] init]; NSLog(@"Unity Controller was set NICE!!!!"); } UIStoryboard *storyBoard; if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) { storyBoard = [UIStoryboard storyboardWithName:@"iPadMain" bundle:nil]; } else { storyBoard = [UIStoryboard storyboardWithName:@"iPhoneMain" bundle:nil]; } UIViewController *mainVC = [storyBoard instantiateInitialViewController]; self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.rootViewController = mainVC; _rootController = [self.window rootViewController]; //_rootController.wantsFullScreenLayout = TRUE; _rootController.edgesForExtendedLayout = TRUE; _rootView = _rootController.view; [self.window makeKeyAndVisible]; } @end IMPL_APP_CONTROLLER_SUBCLASS(mainAppController) //THIS IS VERY IMPORTANT!!!

This last line is the Unity which will "read" and use.

So, see, I used the storyboard, so I have more control over the navigation visually. But you can use whatever you want.

In another any UIViewController, I'll call the Unity, as follows:

ShowARViewController.h

#import <UIKit/UIKit.h> #import "UnityAppController.h" #import "UI/UnityView.h" #import "iPhone_View.h" @interface ShowARViewController : UIViewController { UnityAppController *unityController; IBOutlet UIView *viewToUnity; // This is linked on Storyboard } @end

ShowARViewController.m

#import "ShowARViewController.h" @interface ShowARViewController () @end @implementation ShowARViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; unityController = (UnityAppController*)[[UIApplication sharedApplication] delegate]; [viewToUnity addSubview:unityController.unityView]; } // more methods and codes... @end

See, so I can have more control of Unity that I added in UIView and I can do what I want, for example, add a button above this view.

I hope I have helped really. If you have any questions or suggestions to make this code better, feel free to write me.

Regards

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9 Comments

Hello i want to open unity AR view in my current view controller. I am doing the same. But app crashes say Unityview unrecognised selector sent to
@ios-developer what is your Unity version ?
I want to use the Xloudia AR. They provide support in unity. I have unity package and i export it as a Xcode project. Now i want to use it in my existing iOS project.
Do you know how to integrate unity Xcode project in objective c Xcode project?
Hi @Lenin this post has 6 years. I doesnt work with Unity anymore. Good luck
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Try getting the controller like this:

UIViewController* controller = [[UnityDefaultViewController] alloc] init];
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1 Comment

Nothing happend, touch the button, but the view doesnt show up. Trying to addSubview too, but i had "uncaught exception". Any advice ? Thanks

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