使用StoryBoard在容器视图中加载UIViewController

Question

I have a UIViewController called RootViewController and A UIViewController called NewsViewController . I want to show NewsViewController inside a UIView (the UIView is just a part of the screen) I created inside RootViewController . I'm using StoryBoard and my app needs to support iOS 5 (so I can't use embedded segues aka Containers from the IB)

RootViewController code:

- (void)viewDidLoad
{
    [super viewDidLoad];
    NewsViewController *news = [[NewsViewController alloc]init];
    news.view.frame = self.newsSection.bounds;
    [self.newsSection addSubview:news.view];
    [self addChildViewController:news];
    // Do any additional setup after loading the view.
}

I also connected both UIViewControllers with a segue. The UIView newsSection will stay empty. What Am I doing wrong?

Edit:

This works for me, is that the right approach?

- (void)viewDidLoad
{
    [super viewDidLoad];
    UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    NewsViewController *news = [storyboard instantiateViewControllerWithIdentifier:@"NewsViewControllerID"];
    news.view.frame = self.newsSection.bounds;
    [self.newsSection addSubview:news.view];
    [self addChildViewController:news];
    [news didMoveToParentViewController:self];
}

Answer 1

- (void)viewDidLoad
{
    [super viewDidLoad];
    UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    NewsViewController *news = [storyboard instantiateViewControllerWithIdentifier:@"NewsViewControllerID"];
    news.view.frame = self.newsSection.bounds;
    [self.newsSection addSubview:news.view];
    [self addChildViewController:news];
    [news didMoveToParentViewController:self];
}

Swift

override func viewDidLoad() {
    super.viewDidLoad()
    let news = self.storyboard?.instantiateViewControllerWithIdentifier("NewsViewControllerID") as! NewsViewController
    news.view.frame = newsSection.bounds
    newsSection.addSubview(news.view)
    addChildViewController(news)
    news.didMoveToParentViewController(self)
}

Swift >= 3:

override func viewDidLoad() {
    super.viewDidLoad()
    let news = self.storyboard?.instantiateViewController(withIdentifier: "NewsViewControllerID") as! NewsViewController
    news.view.frame = newsSection.bounds
    newsSection.addSubview(news.view)
    addChildViewController(news)
    news.didMove(toParentViewController: self)
}

Answer 2

Create child, when creating root VC:

-(void)awakeFromNib
{
  [super awakeFromNib];
  // Create news vc from storyboard
  UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"YourStoryboard" bundle:nil];
  NewsViewController *news = [storyboard instantiateViewControllerWithIdentifier:@"News VC ID, you should set it in IB"];
  // Add it as a child to root
  [self addChildViewController:news];
  [news didMoveToParentViewController:self];
  // Save it for future use
  self.news = news;
}

Add child's view when root's view is created:

-(void)viewDidLoad
{
  [super viewDidLoad];
  self.news.view.frame = self.newsSection.bounds;
  [self.newsSection addSubview:self.news.view];
}

Answer 3

Try this:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" 
                                                     bundle:nil];
NewsViewController *rootViewController = 
 [storyboard instantiateViewControllerWithIdentifier:@"NewsViewControllerID"];

Answer 4

Here is the approach the way it worked for me.

I have 3 buttons at the top Purchase,Sale, Rental. now at tapping at any particular button i am loading corresponding UIViewController and i am using storyboard.

I specified Storyboard Id for every UIViewController .

I added two UIView to my Main ViewController which have these 3 buttons(Purchase, Sale ,Rental).

one view i am using for the above three buttons and other i am using for loading a UIViewController.

Now at tapping a specific button i am and in tapping a specific button i am doing following code.

- (IBAction)sellingClicked:(id)sender
{        
    UIStoryboard *storyboard=[UIStoryboard storyboardWithName:@"Main" bundle:nil];

    TestViewController *tvc=[storyboard instantiateViewControllerWithIdentifier:@"test"];

    [self.viewContainer addSubview:tvc.view];
    [self addChildViewController:tvc];       
}

and its working perfectly for me further you can add scrolling View i you want to scroll there.

Answer 5

        otherController!.view.frame = container.bounds;
        self.addChildViewController(otherController!);
        container.addSubview(otherController!.view);
        container.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|[view]|", options: .allZeros, metrics: nil, views: ["view": otherController!.view]))
        container.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|[view]|", options: .allZeros, metrics: nil, views: ["view": otherController!.view]))
        otherController!.didMoveToParentViewController(self);

Don't forget to specify constraint especially if you want to perform animations

Answer 6

You should move your code to - (void) viewDidAppear: (BOOL) animated like this

- (void) viewDidAppear: (BOOL) animated
{
    [super viewDidAppear: animated];

    NewsViewController *news = [[NewsViewController alloc]init];
    news.view.frame = self.newsSection.bounds;
    [self.newsSection addSubview:news.view];
    [self addChildViewController:news];
    // Do any additional setup after loading the view.
}

because frame and bounds in viewDidLoad is {0,0} {0,0}