Learning from Open Source Using Coordinator

Issue #97

The Coordinator pattern can be useful to manage dependencies and handle navigation for your view controllers. It can be seen from BackchannelSDK-iOS, take a look at BAKCreateProfileCoordinator for example

@implementation BAKCreateProfileCoordinator

- (instancetype)initWithUser:(BAKUser *)user navigationController:(UINavigationController *)navigationController configuration:(BAKRemoteConfiguration *)configuration {
    self = [super init];
    if (!self) return nil;
    
    _navigationController = navigationController;
    _user = user;
    _profileViewController = [[BAKProfileFormViewController alloc] init];
    [self configureProfileForm];
    _configuration = configuration;
    
    return self;
}

- (void)start {
    [self.profileViewController updateDisplayName:self.user.displayName];
    [self.navigationController pushViewController:self.profileViewController animated:YES];
}

- (void)profileViewControllerDidTapAvatarButton:(BAKProfileFormViewController *)profileViewController {
    BAKChooseImageCoordinator *imageChooser = [[BAKChooseImageCoordinator alloc] initWithViewController:self.navigationController];
    imageChooser.delegate = self;
    [self.childCoordinators addObject:imageChooser];
    [imageChooser start];
}

- (void)imageChooserDidCancel:(BAKChooseImageCoordinator *)imageChooser {
    [self.childCoordinators removeObject:imageChooser];
}

Look how it holds navigationController as root element to do navigation, and how it manages childCoordinators

Read more

• Coordinators – Soroush Khanlou