How do I resume a script after pausing? [Vuforia issue]

Archived Forums Questions & Answers
1

I am working on an app for android. I use the Handheld.PlayFullScreenMovie which pauses the app to play the video. However when the app returns the camera will no longer auto-focus.

I am using this script on my camera.

using UnityEngine;
using System.Collections;

public class Autofocus : MonoBehaviour {

    private bool EnableAutofocus = false;

    // Use this for initialization
    void Start() {

      EnableAutofocus = true;
   
  }
    
    // Update is called once per frame
    void Update () {
        if (EnableAutofocus) {

                 bool success = CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);

                if (success) {

                  Debug.Log("Successfully set the continuous autofocus");

                }

               else {

                        Debug.Log("Unable to set the continuous autofocus");

               }

                 EnableAutofocus = false;

        }
    }
}

After pausing the camera runs however the script does not seem to reload.

How do I make sure this script runs when the app starts up again?

I am also using the vuforia sdk if that matters?

2

This seems to be a vuforia issue in my case.

https://developer.vuforia.com/forum/ios/camera-loses-auto-focus

https://developer.vuforia.com/forum/unity-3-extension-technical-discussion/camera-auto-focus-stop-after-open-and-close-androids-na

They don’t have a fix yet so I just added a UI button that sets auto focuses on devices that can handle it and manually focuses on devices that lack continual auto focus and reactivate it on devices that can handle it.

If I called the script after a 5 second pause (seams like a long time on a mobile app) it may work but a simple onscreen button is working for now.