Plugin focused event

[fabio]

Hi. I wonder if it is possible to implement an event that is called every time the plugin is displayed/focused/activated on the screen. I would like to update a plugin each time it receives focus (I just want to get rid of an eventual Sync button if possible).

MonoBehavior has an OnBecameVisible() event but isn't being called. Any alternative?

 

[everlaster]

You can detect when the UI transform is enabled/disabled:

using UnityEngine;
using System;

class UnityEventsListener : MonoBehaviour
{
    public bool IsEnabled { get; private set; }
    public Action enabledHandlers;
    public Action disabledHandlers;

    private void OnEnable()
    {
        IsEnabled = true;
        enabledHandlers?.Invoke();
    }

    private void OnDisable()
    {
        IsEnabled = false;
        disabledHandlers?.Invoke();
    }
}

// MVRScript:

private UnityEventsListener _pluginUIEventsListener;

public override void InitUI()
{
    base.InitUI();
    if(this.UITransform == null)
    {
        return;
    }

    if(_pluginUIEventsListener == null)
    {
        _pluginUIEventsListener = UITransform.gameObject.AddComponent<UnityEventsListener>();
        _pluginUIEventsListener.enabledHandlers += OnUIEnabled;
        _pluginUIEventsListener.disabledHandlers += OnUIDisabled;
    }
}

private void OnUIEnabled()
{
    // ...
}

private void OnUIDisabled()
{
    // ...
}

private void OnDestroy()
{
    if(_pluginUIEventsListener != null)
    {
        UnityEngine.Object.DestroyImmediate(_pluginUIEventsListener);
        _pluginUIEventsListener = null;
    }
}

 

[fabio]

Thanks so much, Everlaster! The code works like a charm.