Add UINavigationController inside UIViewController

Question

I have a UIViewController with a UIToolbar (on bottom) and I want to add a UINavigationController with UINavigationBar inside. But the UINavigationController is not displayed. MyViewController.m : ``` - (void)viewDidLoad { [super viewDidLoad]; int toolBarHeight = 44; UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, [self.view bounds].size.height-toolBarHeight, [self.view bounds].size.width, toolBarHeight)]; UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:nil action:nil]; toolBar.items = @[button]; [self.view addSubview:toolBar]; MyNavigationController *myNav = [[MyNavigationController alloc] init]; [self addChildViewController:myNav]; } ```

Accepted Answer

Adding a view controller as a child view controller isn't enough. You also need to add the navigation controller's view as a subview of the container view controller's view.

```
[myNav willMoveToParentViewController:self];
myNav.view.frame = navFrame;  //Set a frame or constraints
[self.view addSubview:myNav.view];
[self addChildViewController:myNav];
[myNav didMoveToParentViewController:self];
```

See the View Controller Programming Guide for more details.

Add UINavigationController inside UIViewController

Solution

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