Present UIViewController in non-modal way?

Question

I have a UIViewController (called A), but sometimes I need to show a second UIViewController (called B) , cause I dont wanna disturb the UI actions in A( A still need to respond to some touch actions ), so is there any methods to show B in non-modal way?

Answer 1

Try this :

[self addChildViewController:viewControllerB];
[self.view addSubview:viewControllerB.view];

Answer 2

Here's how you can display a view controller in a non-modal way in Swift:

let newController = RegisterController()
self.addChildViewController(newController)
self.view.addSubview(newController.view)

Remove view in a non-modal way:

view.removeFromSuperview()

Answer 3

You can easily embed any viewcontroller in another. check it out:

iOS Nested View Controllers view inside UIViewController's view?

Answer 4

You can embed B in A as a child view.

For an exhaustive description see http://subjective-objective-c.blogspot.co.uk/2011/08/writing-high-quality-view-controller.html, for a simple demo, check out this code: https://github.com/toolmanGitHub/stackedViewControllers

Answer 5

I guess you are talking about presenting view controllers modally in iPhone. In iPad, just for the sake of completeness in the example, you have more ways to show a view controller modally that doesn't fill the whole screen.

You can use UIViewController containment for this. All in all it's just adding a view controller as a child of another while adding it's view to the hierarchy. Check this tutorial at obj.io. This is what @Justafinger is suggesting but complete instead as @Justafinger forgot some important calls.

Answer 6

You can

addChildViewController

like this -

- (void)loadContentView
    {
        CGFloat ht               = 0; // height you want to change;
        HomeAdsTVC_iPhone   *vc1 = [[HomeAdsTVC_iPhone alloc] init];
        [self addChildViewController:vc1];
        CGRect frame             = self.view.bounds;
        frame.origin.y           = ht;
        frame.size.height        -= ht;
        vc1.view.frame           = self.view.bounds;
        [self.view addSubview:vc1.view];
        [vc1 didMoveToParentViewController:self];
    }