如何分配自己到另一个类的对象，而导航与出赛格瑞

Question

我使用下面的代码导航到另一个视图控制器中的另一个视图控制器，我要分配给此自另一个类的委托，我该怎么办它呢？

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 

UINavigationController *controller = [storyboard instantiateViewControllerWithIdentifier:@"storyBoardID"]; 

self.navigationController presentViewController:controller animated:YES completion:nil]; 

Answer 1

的导航控制器让您的视图控制器

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 

UINavigationController *controller = [storyboard instantiateViewControllerWithIdentifier:@"navigationControllerID"]; 

TargetVC *targetVC = (TargetVC *)controller.viewControllers.firstObject 
    //OR 
TargetVC *targetVC = (TargetVC *)controller.topViewController; 

targetVC.mydelegate = self; 

[self.navigationController presentViewController:controller animated:YES completion:nil]; 

从的TabBar控制器让您的视图控制器

UITabBarController *homeTabBar=[[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"homeTabBarID"]; 

    TargetVC *targetVC =nil; 

    UINavigationController *nav = [homeTabBar.viewControllers objectAtIndex:0]; 

    //if you have multiple tab then you can give Index as per your ViewController 
    targetVC =(TargetVC*)[nav.viewControllers objectAtIndex:0]; 

    targetVC.mydelegate = self; 

    [self.navigationController presentViewController:homeTabBar animated:YES completion:nil];