How to Show and Hide the OVRVirtualKeyboard Building Block Prefab

How do you reference the keyboard? GameObject.Find won't work if the keyboard is inactive (it took me like a day to realize it). What I do is to pass it like a public var and then loading it with the keyboard in the unity editor

....
    public OVRVirtualKeyboard virtualKeyboard;
....
    public void openKeyboard()
    {
        virtualKeyboard.gameObject.SetActive(true);
    }
....

Good luck! 

The OVRVirtualKeyboard script has ShowKeyboard() HideKeyboard() methods, which are private, but they're called when the script is enabled/disabled. So maybe just enable/disable the script?

I used the VirtualKeyboard Buildingblock to add the Keyboard to View. The documentation still states to update the "Text Commit Field". This is deprecated! You should add the a `OVRVirtualKeyboardInputFieldTextHandler` to a (legacy) TextField (it does not work with TextmeshPro). Then you can set your TextField as `TextHandler` of your `VirtualKeyboard` Gameobject.

So what I did, I created a `CustomOVRVirtualKeyboardInputFieldTextHandler` inheriting from `OVRVirtualKeyboardInputFieldTextHandler`. This one handles switching your keyboards context.

using UnityEngine;
using UnityEngine.UI;

class CustomOVRVirtualKeyboardInputFieldTextHandler : OVRVirtualKeyboardInputFieldTextHandler
{
    public OVRVirtualKeyboard keyboard;
    
    public new void Start()
    {
        InputField = GetComponent<InputField>();
        keyboard.EnterEvent.AddListener(KeyboardEnter);
        base.Start();
    }
    public void Update()
    {
        if (IsFocused) {
            BindKeyboard();
        }
        // This works in debug mode. But when the game is built, the InputField loses focus on next frame, so the keyboard gets immediatly unbound. 
        //  Tested with Meta XR SDK v60
        // if (!IsFocused && (object)keyboard.TextHandler == this) {
        //     UnbindKeyboard();
        // }
    }

    protected void KeyboardEnter()
    {
        UnbindKeyboard();
    }

    protected void BindKeyboard()
    {
        keyboard.TextHandler = this;
        keyboard.gameObject.SetActive(true);
    }

    protected void UnbindKeyboard()
    {
        InputField.DeactivateInputField();
        keyboard.gameObject.SetActive(false);
        keyboard.TextHandler = null;
    }
}

There is one catch. I noticed that the TextField loses focus on the next frame after clicking it. So I had to remove the `UnbindKeyboard()` from the Update-Method, when it is not focused anymore.
This does not happen when I run the App in Debug Mode (Unity "Play"-Button) and use it on my Quest 3 (via Link Cable). This only happens when I use "Build and Run" in Unity. I did not test it when I copy the app the my Quest 3 via Sideload yet, but I do not expect any difference.

PS: The `InputField` property gets set automatically, as it should of course always be the same InputField the component was added to. But as this field is `private` in the base class, I did not manage to hide it in the Editor. Tips on this is appreciated.