Unhandled Exception: A CameraController was used after being disposed.

[PrabeshPP]

What

Unhandled Exception: A CameraController was used after being disposed.

Steps to reproduce the behavior

1. After the app opens ,click on the profile icon on the bottom bar.
2. And then click on the History Icon.
   3.After that Click on the Search Icon again.
3. See error

Note: This error does not always show up.
I got his this error two times,but after restarting the app I did the same but was not able to re-produce.

Why

• I guess this error should be solved , since a user can face the same error after moving between the pages back and forth.

Screenshot/Mockup/Before-After

Don't have screenshot,but here is the log for that error.

E/flutter (29950): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: A CameraController was used after being disposed.
E/flutter (29950): Once you have called dispose() on a CameraController, it can no longer be used.
E/flutter (29950): #0      ChangeNotifier._debugAssertNotDisposed.<anonymous closure>
package:flutter/…/foundation/change_notifier.dart:114
E/flutter (29950): #1      ChangeNotifier._debugAssertNotDisposed
package:flutter/…/foundation/change_notifier.dart:120
E/flutter (29950): #2      ChangeNotifier.notifyListeners
package:flutter/…/foundation/change_notifier.dart:288
E/flutter (29950): #3      ValueNotifier.value=
package:flutter/…/foundation/change_notifier.dart:412
E/flutter (29950): #4      CameraController.startImageStream
package:camera/src/camera_controller.dart:442
E/flutter (29950): <asynchronous suspension>
E/flutter (29950):

Smartphone model

• Device: OnePlus 7
• OS:Android 11

Part of

• 🤳🥫 Scanning (tracker) #526

[teolemon]

@PrabeshPP @g123k This one is probably solved

[g123k]

+1 I think so

[alxlion]

I fixed the issue by disposing the camera controller in didUpdateWidget instead of deactivate.