[Bug] ARCorePermissionManager should handle requesting and onpause situation

[flankechen]

Describe the bug When requesting permission with ARCorePermissionManager by ARCorePermissionManager.RequestPermission(String, Action<String, Boolean>), if user click home button and resume back to app. Permission requesting window is gone and No granted callback is called. We have no ways to resume permission request or raise another permission request. if call RequestPermission() again, exception like : if (s_CurrentCallback != null) throw new InvalidOperationException("Cannot start a new permissions request before the current one finishes."); happened.

To Reproduce Steps to reproduce the behavior: 1.equesting permission with ARCorePermissionManager by ARCorePermissionManager.RequestPermission(String, Action<String, Boolean>) 2.user click home button go to home screen and resume back to app 3.Permission requesting window is gone and No granted callback is called

Expected behavior permission request window keeps when onpause and onresume. or a callback is called.

Smartphone (please complete the following information):

• Device: Android ARCore
• OS: Android 11
• Unity version: 2019.4.29
• ARFoundation version: 4.1.1

[DavidMohrhardt]

Could you file a bug for this: https://unity3d.com/unity/qa/bug-reporting.

[flankechen]

@DavidMohrhardt done reporting it in unity. it should be easy to reproduce. thanks

[ankur-unity]

@flankechen - Can you post the bug id here?

[ankur-unity]

The bug has been reproduced. Use the following link to follow the progress on a fix: https://issuetracker.unity3d.com/issues/arfoundation-camera-request-permission-window-is-not-shown-when-app-is-minimized-and-opened-again-on-android-device

[andyb-unity]

Added a new API to cancel permission request in Google ARCore XR Plug-in 5.0.0-pre.12: https://docs.unity3d.com/Packages/com.unity.xr.arcore@5.0/changelog/CHANGELOG.html#added-1