Repository: flutter
Issue: [camera_android_camerax]The torch doesn't turn on back after switching to rear camera even after a manual test set
Labels: platform-android,p: camera,package,has reproducible steps,P2,team-android,triaged-android,found in release: 3.27,found in release: 3.28

### What package does this bug report belong to?

camera

### What target platforms are you seeing this bug on?

Android

### Have you already upgraded your packages?

Yes

### Dependency versions

<details><summary>pubspec.lock</summary>

```lock
# Generated by pub
# See https://dart.dev/tools/pub/glossary#lockfile
packages:
  archive:
    dependency: transitive
    description:
      name: archive
      sha256: "6199c74e3db4fbfbd04f66d739e72fe11c8a8957d5f219f1f4482dbde6420b5a"
      url: "https://pub.dev"
    source: hosted
    version: "4.0.2"
  async:
    dependency: transitive
    description:
      name: async
      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
      url: "https://pub.dev"
    source: hosted
    version: "2.11.0"
  boolean_selector:
    dependency: transitive
    description:
      name: boolean_selector
      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
      url: "https://pub.dev"
    source: hosted
    version: "2.1.1"
  camera:
    dependency: "direct main"
    description:
      name: camera
      sha256: "26ff41045772153f222ffffecba711a206f670f5834d40ebf5eed3811692f167"
      url: "https://pub.dev"
    source: hosted
    version: "0.11.0+2"
  camera_android_camerax:
    dependency: transitive
    description:
      name: camera_android_camerax
      sha256: abcfa1ac32bd03116b4cfda7e8223ab391f01966e65823c064afe388550d1b3d
      url: "https://pub.dev"
    source: hosted
    version: "0.6.10+3"
  camera_avfoundation:
    dependency: transitive
    description:
      name: camera_avfoundation
      sha256: "2e4c568f70e406ccb87376bc06b53d2f5bebaab71e2fbcc1a950e31449381bcf"
      url: "https://pub.dev"
    source: hosted
    version: "0.9.17+5"
  camera_platform_interface:
    dependency: transitive
    description:
      name: camera_platform_interface
      sha256: b3ede1f171532e0d83111fe0980b46d17f1aa9788a07a2fbed07366bbdbb9061
      url: "https://pub.dev"
    source: hosted
    version: "2.8.0"
  camera_web:
    dependency: transitive
    description:
      name: camera_web
      sha256: "595f28c89d1fb62d77c73c633193755b781c6d2e0ebcd8dc25b763b514e6ba8f"
      url: "https://pub.dev"
    source: hosted
    version: "0.3.5"
  characters:
    dependency: transitive
    description:
      name: characters
      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
      url: "https://pub.dev"
    source: hosted
    version: "1.3.0"
  clock:
    dependency: transitive
    description:
      name: clock
      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
      url: "https://pub.dev"
    source: hosted
    version: "1.1.1"
  collection:
    dependency: transitive
    description:
      name: collection
      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
      url: "https://pub.dev"
    source: hosted
    version: "1.18.0"
  cross_file:
    dependency: transitive
    description:
      name: cross_file
      sha256: "7caf6a750a0c04effbb52a676dce9a4a592e10ad35c34d6d2d0e4811160d5670"
      url: "https://pub.dev"
    source: hosted
    version: "0.3.4+2"
  crypto:
    dependency: transitive
    description:
      name: crypto
      sha256: "1e445881f28f22d6140f181e07737b22f1e099a5e1ff94b0af2f9e4a463f4855"
      url: "https://pub.dev"
    source: hosted
    version: "3.0.6"
  fake_async:
    dependency: transitive
    description:
      name: fake_async
      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
      url: "https://pub.dev"
    source: hosted
    version: "1.3.1"
  ffi:
    dependency: transitive
    description:
      name: ffi
      sha256: "16ed7b077ef01ad6170a3d0c57caa4a112a38d7a2ed5602e0aca9ca6f3d98da6"
      url: "https://pub.dev"
    source: hosted
    version: "2.1.3"
  flutter:
    dependency: "direct main"
    description: flutter
    source: sdk
    version: "0.0.0"
  flutter_lints:
    dependency: "direct dev"
    description:
      name: flutter_lints
      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
      url: "https://pub.dev"
    source: hosted
    version: "4.0.0"
  flutter_plugin_android_lifecycle:
    dependency: transitive
    description:
      name: flutter_plugin_android_lifecycle
      sha256: "615a505aef59b151b46bbeef55b36ce2b6ed299d160c51d84281946f0aa0ce0e"
      url: "https://pub.dev"
    source: hosted
    version: "2.0.24"
  flutter_test:
    dependency: "direct dev"
    description: flutter
    source: sdk
    version: "0.0.0"
  flutter_web_plugins:
    dependency: transitive
    description: flutter
    source: sdk
    version: "0.0.0"
  image:
    dependency: "direct main"
    description:
      name: image
      sha256: "8346ad4b5173924b5ddddab782fc7d8a6300178c8b1dc427775405a01701c4a6"
      url: "https://pub.dev"
    source: hosted
    version: "4.5.2"
  leak_tracker:
    dependency: transitive
    description:
      name: leak_tracker
      sha256: "3f87a60e8c63aecc975dda1ceedbc8f24de75f09e4856ea27daf8958f2f0ce05"
      url: "https://pub.dev"
    source: hosted
    version: "10.0.5"
  leak_tracker_flutter_testing:
    dependency: transitive
    description:
      name: leak_tracker_flutter_testing
      sha256: "932549fb305594d82d7183ecd9fa93463e9914e1b67cacc34bc40906594a1806"
      url: "https://pub.dev"
    source: hosted
    version: "3.0.5"
  leak_tracker_testing:
    dependency: transitive
    description:
      name: leak_tracker_testing
      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
      url: "https://pub.dev"
    source: hosted
    version: "3.0.1"
  lints:
    dependency: transitive
    description:
      name: lints
      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
      url: "https://pub.dev"
    source: hosted
    version: "4.0.0"
  matcher:
    dependency: transitive
    description:
      name: matcher
      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
      url: "https://pub.dev"
    source: hosted
    version: "0.12.16+1"
  material_color_utilities:
    dependency: transitive
    description:
      name: material_color_utilities
      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
      url: "https://pub.dev"
    source: hosted
    version: "0.11.1"
  meta:
    dependency: transitive
    description:
      name: meta
      sha256: bdb68674043280c3428e9ec998512fb681678676b3c54e773629ffe74419f8c7
      url: "https://pub.dev"
    source: hosted
    version: "1.15.0"
  path:
    dependency: transitive
    description:
      name: path
      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
      url: "https://pub.dev"
    source: hosted
    version: "1.9.0"
  petitparser:
    dependency: transitive
    description:
      name: petitparser
      sha256: c15605cd28af66339f8eb6fbe0e541bfe2d1b72d5825efc6598f3e0a31b9ad27
      url: "https://pub.dev"
    source: hosted
    version: "6.0.2"
  plugin_platform_interface:
    dependency: transitive
    description:
      name: plugin_platform_interface
      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
      url: "https://pub.dev"
    source: hosted
    version: "2.1.8"
  posix:
    dependency: transitive
    description:
      name: posix
      sha256: a0117dc2167805aa9125b82eee515cc891819bac2f538c83646d355b16f58b9a
      url: "https://pub.dev"
    source: hosted
    version: "6.0.1"
  sky_engine:
    dependency: transitive
    description: flutter
    source: sdk
    version: "0.0.99"
  source_span:
    dependency: transitive
    description:
      name: source_span
      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
      url: "https://pub.dev"
    source: hosted
    version: "1.10.0"
  stack_trace:
    dependency: transitive
    description:
      name: stack_trace
      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
      url: "https://pub.dev"
    source: hosted
    version: "1.11.1"
  stream_channel:
    dependency: transitive
    description:
      name: stream_channel
      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
      url: "https://pub.dev"
    source: hosted
    version: "2.1.2"
  stream_transform:
    dependency: transitive
    description:
      name: stream_transform
      sha256: ad47125e588cfd37a9a7f86c7d6356dde8dfe89d071d293f80ca9e9273a33871
      url: "https://pub.dev"
    source: hosted
    version: "2.1.1"
  string_scanner:
    dependency: transitive
    description:
      name: string_scanner
      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
      url: "https://pub.dev"
    source: hosted
    version: "1.2.0"
  term_glyph:
    dependency: transitive
    description:
      name: term_glyph
      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
      url: "https://pub.dev"
    source: hosted
    version: "1.2.1"
  test_api:
    dependency: transitive
    description:
      name: test_api
      sha256: "5b8a98dafc4d5c4c9c72d8b31ab2b23fc13422348d2997120294d3bac86b4ddb"
      url: "https://pub.dev"
    source: hosted
    version: "0.7.2"
  typed_data:
    dependency: transitive
    description:
      name: typed_data
      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
      url: "https://pub.dev"
    source: hosted
    version: "1.4.0"
  vector_math:
    dependency: transitive
    description:
      name: vector_math
      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
      url: "https://pub.dev"
    source: hosted
    version: "2.1.4"
  vm_service:
    dependency: transitive
    description:
      name: vm_service
      sha256: f652077d0bdf60abe4c1f6377448e8655008eef28f128bc023f7b5e8dfeb48fc
      url: "https://pub.dev"
    source: hosted
    version: "14.2.4"
  web:
    dependency: transitive
    description:
      name: web
      sha256: cd3543bd5798f6ad290ea73d210f423502e71900302dde696f8bff84bf89a1cb
      url: "https://pub.dev"
    source: hosted
    version: "1.1.0"
  xml:
    dependency: transitive
    description:
      name: xml
      sha256: b015a8ad1c488f66851d762d3090a21c600e479dc75e68328c52774040cf9226
      url: "https://pub.dev"
    source: hosted
    version: "6.5.0"
sdks:
  dart: ">=3.5.0 <4.0.0"
  flutter: ">=3.24.0"

```

</details>


### Steps to reproduce

1. Select the rear camera
2. Turn on the torch
3. Switch to the front camera
4. Switch to the rear camera
5. Try to turn on the torch

### Expected results

Step 3 turns off the torch because the front camera has no torch. After step 4, the torch turns on again. After step 5, we try to "manually" turn it on.

### Actual results

Step 3 turns off the torch because the front camera has no torch, but the torch doesn't turn on after either step 4 or step 5.

### Code sample

<details open><summary>Code sample</summary>

The example is taken from https://pub.dev/packages/camera/example, except for the video_player-related features that are commented out.

```dart
import 'dart:async';
import 'dart:io';

import 'package:camera/camera.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart';
//import 'package:video_player/video_player.dart';

/// Camera example home widget.
class CameraExampleHome extends StatefulWidget {
  /// Default Constructor
  const CameraExampleHome({super.key});

  @override
  State<CameraExampleHome> createState() {
    return _CameraExampleHomeState();
  }
}

/// Returns a suitable camera icon for [direction].
IconData getCameraLensIcon(CameraLensDirection direction) {
  switch (direction) {
    case CameraLensDirection.back:
      return Icons.camera_rear;
    case CameraLensDirection.front:
      return Icons.camera_front;
    case CameraLensDirection.external:
      return Icons.camera;
  }
  // This enum is from a different package, so a new value could be added at
  // any time. The example should keep working if that happens.
  // ignore: dead_code
  return Icons.camera;
}

void _logError(String code, String? message) {
  // ignore: avoid_print
  print('Error: $code${message == null ? '' : '\nError Message: $message'}');
}

class _CameraExampleHomeState extends State<CameraExampleHome>
    with WidgetsBindingObserver, TickerProviderStateMixin {
  CameraController? controller;
  XFile? imageFile;
  XFile? videoFile;
  //VideoPlayerController? videoController;
  VoidCallback? videoPlayerListener;
  bool enableAudio = true;
  double _minAvailableExposureOffset = 0.0;
  double _maxAvailableExposureOffset = 0.0;
  double _currentExposureOffset = 0.0;
  late AnimationController _flashModeControlRowAnimationController;
  late Animation<double> _flashModeControlRowAnimation;
  late AnimationController _exposureModeControlRowAnimationController;
  late Animation<double> _exposureModeControlRowAnimation;
  late AnimationController _focusModeControlRowAnimationController;
  late Animation<double> _focusModeControlRowAnimation;
  double _minAvailableZoom = 1.0;
  double _maxAvailableZoom = 1.0;
  double _currentScale = 1.0;
  double _baseScale = 1.0;

  // Counting pointers (number of user fingers on screen)
  int _pointers = 0;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);

    _flashModeControlRowAnimationController = AnimationController(
      duration: const Duration(milliseconds: 300),
      vsync: this,
    );
    _flashModeControlRowAnimation = CurvedAnimation(
      parent: _flashModeControlRowAnimationController,
      curve: Curves.easeInCubic,
    );
    _exposureModeControlRowAnimationController = AnimationController(
      duration: const Duration(milliseconds: 300),
      vsync: this,
    );
    _exposureModeControlRowAnimation = CurvedAnimation(
      parent: _exposureModeControlRowAnimationController,
      curve: Curves.easeInCubic,
    );
    _focusModeControlRowAnimationController = AnimationController(
      duration: const Duration(milliseconds: 300),
      vsync: this,
    );
    _focusModeControlRowAnimation = CurvedAnimation(
      parent: _focusModeControlRowAnimationController,
      curve: Curves.easeInCubic,
    );
  }

  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    _flashModeControlRowAnimationController.dispose();
    _exposureModeControlRowAnimationController.dispose();
    super.dispose();
  }

  // #docregion AppLifecycle
  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    final CameraController? cameraController = controller;

    // App state changed before we got the chance to initialize.
    if (cameraController == null || !cameraController.value.isInitialized) {
      return;
    }

    if (state == AppLifecycleState.inactive) {
      cameraController.dispose();
    } else if (state == AppLifecycleState.resumed) {
      _initializeCameraController(cameraController.description);
    }
  }
  // #enddocregion AppLifecycle

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Camera example'),
      ),
      body: Column(
        children: <Widget>[
          Expanded(
            child: Container(
              decoration: BoxDecoration(
                color: Colors.black,
                border: Border.all(
                  color:
                      controller != null && controller!.value.isRecordingVideo
                          ? Colors.redAccent
                          : Colors.grey,
                  width: 3.0,
                ),
              ),
              child: Padding(
                padding: const EdgeInsets.all(1.0),
                child: Center(
                  child: _cameraPreviewWidget(),
                ),
              ),
            ),
          ),
          _captureControlRowWidget(),
          _modeControlRowWidget(),
          Padding(
            padding: const EdgeInsets.all(5.0),
            child: Row(
              children: <Widget>[
                _cameraTogglesRowWidget(),
                //_thumbnailWidget(),
              ],
            ),
          ),
        ],
      ),
    );
  }

  /// Display the preview from the camera (or a message if the preview is not available).
  Widget _cameraPreviewWidget() {
    final CameraController? cameraController = controller;

    if (cameraController == null || !cameraController.value.isInitialized) {
      return const Text(
        'Tap a camera',
        style: TextStyle(
          color: Colors.white,
          fontSize: 24.0,
          fontWeight: FontWeight.w900,
        ),
      );
    } else {
      return Listener(
        onPointerDown: (_) => _pointers++,
        onPointerUp: (_) => _pointers--,
        child: CameraPreview(
          controller!,
          child: LayoutBuilder(
              builder: (BuildContext context, BoxConstraints constraints) {
            return GestureDetector(
              behavior: HitTestBehavior.opaque,
              onScaleStart: _handleScaleStart,
              onScaleUpdate: _handleScaleUpdate,
              onTapDown: (TapDownDetails details) =>
                  onViewFinderTap(details, constraints),
            );
          }),
        ),
      );
    }
  }

  void _handleScaleStart(ScaleStartDetails details) {
    _baseScale = _currentScale;
  }

  Future<void> _handleScaleUpdate(ScaleUpdateDetails details) async {
    // When there are not exactly two fingers on screen don't scale
    if (controller == null || _pointers != 2) {
      return;
    }

    _currentScale = (_baseScale * details.scale)
        .clamp(_minAvailableZoom, _maxAvailableZoom);

    await controller!.setZoomLevel(_currentScale);
  }

  /// Display the thumbnail of the captured image or video.
  // Widget _thumbnailWidget() {
  //   final VideoPlayerController? localVideoController = videoController;

  //   return Expanded(
  //     child: Align(
  //       alignment: Alignment.centerRight,
  //       child: Row(
  //         mainAxisSize: MainAxisSize.min,
  //         children: <Widget>[
  //           if (localVideoController == null && imageFile == null)
  //             Container()
  //           else
  //             SizedBox(
  //               width: 64.0,
  //               height: 64.0,
  //               child: (localVideoController == null)
  //                   ? (
  //                       // The captured image on the web contains a network-accessible URL
  //                       // pointing to a location within the browser. It may be displayed
  //                       // either with Image.network or Image.memory after loading the image
  //                       // bytes to memory.
  //                       kIsWeb
  //                           ? Image.network(imageFile!.path)
  //                           : Image.file(File(imageFile!.path)))
  //                   : Container(
  //                       decoration: BoxDecoration(
  //                           border: Border.all(color: Colors.pink)),
  //                       child: Center(
  //                         child: AspectRatio(
  //                             aspectRatio:
  //                                 localVideoController.value.aspectRatio,
  //                             child: VideoPlayer(localVideoController)),
  //                       ),
  //                     ),
  //             ),
  //         ],
  //       ),
  //     ),
  //   );
  // }

  /// Display a bar with buttons to change the flash and exposure modes
  Widget _modeControlRowWidget() {
    return Column(
      children: <Widget>[
        Row(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: <Widget>[
            IconButton(
              icon: const Icon(Icons.flash_on),
              color: Colors.blue,
              onPressed: controller != null ? onFlashModeButtonPressed : null,
            ),
            // The exposure and focus mode are currently not supported on the web.
            ...!kIsWeb
                ? <Widget>[
                    IconButton(
                      icon: const Icon(Icons.exposure),
                      color: Colors.blue,
                      onPressed: controller != null
                          ? onExposureModeButtonPressed
                          : null,
                    ),
                    IconButton(
                      icon: const Icon(Icons.filter_center_focus),
                      color: Colors.blue,
                      onPressed:
                          controller != null ? onFocusModeButtonPressed : null,
                    )
                  ]
                : <Widget>[],
            IconButton(
              icon: Icon(enableAudio ? Icons.volume_up : Icons.volume_mute),
              color: Colors.blue,
              onPressed: controller != null ? onAudioModeButtonPressed : null,
            ),
            IconButton(
              icon: Icon(controller?.value.isCaptureOrientationLocked ?? false
                  ? Icons.screen_lock_rotation
                  : Icons.screen_rotation),
              color: Colors.blue,
              onPressed: controller != null
                  ? onCaptureOrientationLockButtonPressed
                  : null,
            ),
          ],
        ),
        _flashModeControlRowWidget(),
        _exposureModeControlRowWidget(),
        _focusModeControlRowWidget(),
      ],
    );
  }

  Widget _flashModeControlRowWidget() {
    return SizeTransition(
      sizeFactor: _flashModeControlRowAnimation,
      child: ClipRect(
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: <Widget>[
            IconButton(
              icon: const Icon(Icons.flash_off),
              color: controller?.value.flashMode == FlashMode.off
                  ? Colors.orange
                  : Colors.blue,
              onPressed: controller != null
                  ? () => onSetFlashModeButtonPressed(FlashMode.off)
                  : null,
            ),
            IconButton(
              icon: const Icon(Icons.flash_auto),
              color: controller?.value.flashMode == FlashMode.auto
                  ? Colors.orange
                  : Colors.blue,
              onPressed: controller != null
                  ? () => onSetFlashModeButtonPressed(FlashMode.auto)
                  : null,
            ),
            IconButton(
              icon: const Icon(Icons.flash_on),
              color: controller?.value.flashMode == FlashMode.always
                  ? Colors.orange
                  : Colors.blue,
              onPressed: controller != null
                  ? () => onSetFlashModeButtonPressed(FlashMode.always)
                  : null,
            ),
            IconButton(
              icon: const Icon(Icons.highlight),
              color: controller?.value.flashMode == FlashMode.torch
                  ? Colors.orange
                  : Colors.blue,
              onPressed: controller != null
                  ? () => onSetFlashModeButtonPressed(FlashMode.torch)
                  : null,
            ),
          ],
        ),
      ),
    );
  }

  Widget _exposureModeControlRowWidget() {
    final ButtonStyle styleAuto = TextButton.styleFrom(
      foregroundColor: controller?.value.exposureMode == ExposureMode.auto
          ? Colors.orange
          : Colors.blue,
    );
    final ButtonStyle styleLocked = TextButton.styleFrom(
      foregroundColor: controller?.value.exposureMode == ExposureMode.locked
          ? Colors.orange
          : Colors.blue,
    );

    return SizeTransition(
      sizeFactor: _exposureModeControlRowAnimation,
      child: ClipRect(
        child: ColoredBox(
          color: Colors.grey.shade50,
          child: Column(
            children: <Widget>[
              const Center(
                child: Text('Exposure Mode'),
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  TextButton(
                    style: styleAuto,
                    onPressed: controller != null
                        ? () =>
                            onSetExposureModeButtonPressed(ExposureMode.auto)
                        : null,
                    onLongPress: () {
                      if (controller != null) {
                        controller!.setExposurePoint(null);
                        showInSnackBar('Resetting exposure point');
                      }
                    },
                    child: const Text('AUTO'),
                  ),
                  TextButton(
                    style: styleLocked,
                    onPressed: controller != null
                        ? () =>
                            onSetExposureModeButtonPressed(ExposureMode.locked)
                        : null,
                    child: const Text('LOCKED'),
                  ),
                  TextButton(
                    style: styleLocked,
                    onPressed: controller != null
                        ? () => controller!.setExposureOffset(0.0)
                        : null,
                    child: const Text('RESET OFFSET'),
                  ),
                ],
              ),
              const Center(
                child: Text('Exposure Offset'),
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_minAvailableExposureOffset.toString()),
                  Slider(
                    value: _currentExposureOffset,
                    min: _minAvailableExposureOffset,
                    max: _maxAvailableExposureOffset,
                    label: _currentExposureOffset.toString(),
                    onChanged: _minAvailableExposureOffset ==
                            _maxAvailableExposureOffset
                        ? null
                        : setExposureOffset,
                  ),
                  Text(_maxAvailableExposureOffset.toString()),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }

  Widget _focusModeControlRowWidget() {
    final ButtonStyle styleAuto = TextButton.styleFrom(
      foregroundColor: controller?.value.focusMode == FocusMode.auto
          ? Colors.orange
          : Colors.blue,
    );
    final ButtonStyle styleLocked = TextButton.styleFrom(
      foregroundColor: controller?.value.focusMode == FocusMode.locked
          ? Colors.orange
          : Colors.blue,
    );

    return SizeTransition(
      sizeFactor: _focusModeControlRowAnimation,
      child: ClipRect(
        child: ColoredBox(
          color: Colors.grey.shade50,
          child: Column(
            children: <Widget>[
              const Center(
                child: Text('Focus Mode'),
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  TextButton(
                    style: styleAuto,
                    onPressed: controller != null
                        ? () => onSetFocusModeButtonPressed(FocusMode.auto)
                        : null,
                    onLongPress: () {
                      if (controller != null) {
                        controller!.setFocusPoint(null);
                      }
                      showInSnackBar('Resetting focus point');
                    },
                    child: const Text('AUTO'),
                  ),
                  TextButton(
                    style: styleLocked,
                    onPressed: controller != null
                        ? () => onSetFocusModeButtonPressed(FocusMode.locked)
                        : null,
                    child: const Text('LOCKED'),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }

  /// Display the control bar with buttons to take pictures and record videos.
  Widget _captureControlRowWidget() {
    final CameraController? cameraController = controller;

    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
      children: <Widget>[
        IconButton(
          icon: const Icon(Icons.camera_alt),
          color: Colors.blue,
          onPressed: cameraController != null &&
                  cameraController.value.isInitialized &&
                  !cameraController.value.isRecordingVideo
              ? onTakePictureButtonPressed
              : null,
        ),
        IconButton(
          icon: const Icon(Icons.videocam),
          color: Colors.blue,
          onPressed: cameraController != null &&
                  cameraController.value.isInitialized &&
                  !cameraController.value.isRecordingVideo
              ? onVideoRecordButtonPressed
              : null,
        ),
        IconButton(
          icon: cameraController != null &&
                  cameraController.value.isRecordingPaused
              ? const Icon(Icons.play_arrow)
              : const Icon(Icons.pause),
          color: Colors.blue,
          onPressed: cameraController != null &&
                  cameraController.value.isInitialized &&
                  cameraController.value.isRecordingVideo
              ? (cameraController.value.isRecordingPaused)
                  ? onResumeButtonPressed
                  : onPauseButtonPressed
              : null,
        ),
        IconButton(
          icon: const Icon(Icons.stop),
          color: Colors.red,
          onPressed: cameraController != null &&
                  cameraController.value.isInitialized &&
                  cameraController.value.isRecordingVideo
              ? onStopButtonPressed
              : null,
        ),
        IconButton(
          icon: const Icon(Icons.pause_presentation),
          color:
              cameraController != null && cameraController.value.isPreviewPaused
                  ? Colors.red
                  : Colors.blue,
          onPressed:
              cameraController == null ? null : onPausePreviewButtonPressed,
        ),
      ],
    );
  }

  /// Display a row of toggle to select the camera (or a message if no camera is available).
  Widget _cameraTogglesRowWidget() {
    final List<Widget> toggles = <Widget>[];

    void onChanged(CameraDescription? description) {
      if (description == null) {
        return;
      }

      onNewCameraSelected(description);
    }

    if (_cameras.isEmpty) {
      SchedulerBinding.instance.addPostFrameCallback((_) async {
        showInSnackBar('No camera found.');
      });
      return const Text('None');
    } else {
      for (final CameraDescription cameraDescription in _cameras) {
        toggles.add(
          SizedBox(
            width: 90.0,
            child: RadioListTile<CameraDescription>(
              title: Icon(getCameraLensIcon(cameraDescription.lensDirection)),
              groupValue: controller?.description,
              value: cameraDescription,
              onChanged: onChanged,
            ),
          ),
        );
      }
    }

    return Row(children: toggles);
  }

  String timestamp() => DateTime.now().millisecondsSinceEpoch.toString();

  void showInSnackBar(String message) {
    ScaffoldMessenger.of(context)
        .showSnackBar(SnackBar(content: Text(message)));
  }

  void onViewFinderTap(TapDownDetails details, BoxConstraints constraints) {
    if (controller == null) {
      return;
    }

    final CameraController cameraController = controller!;

    final Offset offset = Offset(
      details.localPosition.dx / constraints.maxWidth,
      details.localPosition.dy / constraints.maxHeight,
    );
    cameraController.setExposurePoint(offset);
    cameraController.setFocusPoint(offset);
  }

  Future<void> onNewCameraSelected(CameraDescription cameraDescription) async {
    if (controller != null) {
      return controller!.setDescription(cameraDescription);
    } else {
      return _initializeCameraController(cameraDescription);
    }
  }

  Future<void> _initializeCameraController(
      CameraDescription cameraDescription) async {
    final CameraController cameraController = CameraController(
      cameraDescription,
      kIsWeb ? ResolutionPreset.max : ResolutionPreset.medium,
      enableAudio: enableAudio,
      imageFormatGroup: ImageFormatGroup.jpeg,
    );

    controller = cameraController;

    // If the controller is updated then update the UI.
    cameraController.addListener(() {
      if (mounted) {
        setState(() {});
      }
      if (cameraController.value.hasError) {
        showInSnackBar(
            'Camera error ${cameraController.value.errorDescription}');
      }
    });

    try {
      await cameraController.initialize();
      await Future.wait(<Future<Object?>>[
        // The exposure mode is currently not supported on the web.
        ...!kIsWeb
            ? <Future<Object?>>[
                cameraController.getMinExposureOffset().then(
                    (double value) => _minAvailableExposureOffset = value),
                cameraController
                    .getMaxExposureOffset()
                    .then((double value) => _maxAvailableExposureOffset = value)
              ]
            : <Future<Object?>>[],
        cameraController
            .getMaxZoomLevel()
            .then((double value) => _maxAvailableZoom = value),
        cameraController
            .getMinZoomLevel()
            .then((double value) => _minAvailableZoom = value),
      ]);
    } on CameraException catch (e) {
      switch (e.code) {
        case 'CameraAccessDenied':
          showInSnackBar('You have denied camera access.');
        case 'CameraAccessDeniedWithoutPrompt':
          // iOS only
          showInSnackBar('Please go to Settings app to enable camera access.');
        case 'CameraAccessRestricted':
          // iOS only
          showInSnackBar('Camera access is restricted.');
        case 'AudioAccessDenied':
          showInSnackBar('You have denied audio access.');
        case 'AudioAccessDeniedWithoutPrompt':
          // iOS only
          showInSnackBar('Please go to Settings app to enable audio access.');
        case 'AudioAccessRestricted':
          // iOS only
          showInSnackBar('Audio access is restricted.');
        default:
          _showCameraException(e);
          break;
      }
    }

    if (mounted) {
      setState(() {});
    }
  }

  void onTakePictureButtonPressed() {
    takePicture().then((XFile? file) {
      if (mounted) {
        setState(() {
          imageFile = file;
          //videoController?.dispose();
          //videoController = null;
        });
        if (file != null) {
          showInSnackBar('Picture saved to ${file.path}');
        }
      }
    });
  }

  void onFlashModeButtonPressed() {
    if (_flashModeControlRowAnimationController.value == 1) {
      _flashModeControlRowAnimationController.reverse();
    } else {
      _flashModeControlRowAnimationController.forward();
      _exposureModeControlRowAnimationController.reverse();
      _focusModeControlRowAnimationController.reverse();
    }
  }

  void onExposureModeButtonPressed() {
    if (_exposureModeControlRowAnimationController.value == 1) {
      _exposureModeControlRowAnimationController.reverse();
    } else {
      _exposureModeControlRowAnimationController.forward();
      _flashModeControlRowAnimationController.reverse();
      _focusModeControlRowAnimationController.reverse();
    }
  }

  void onFocusModeButtonPressed() {
    if (_focusModeControlRowAnimationController.value == 1) {
      _focusModeControlRowAnimationController.reverse();
    } else {
      _focusModeControlRowAnimationController.forward();
      _flashModeControlRowAnimationController.reverse();
      _exposureModeControlRowAnimationController.reverse();
    }
  }

  void onAudioModeButtonPressed() {
    enableAudio = !enableAudio;
    if (controller != null) {
      onNewCameraSelected(controller!.description);
    }
  }

  Future<void> onCaptureOrientationLockButtonPressed() async {
    try {
      if (controller != null) {
        final CameraController cameraController = controller!;
        if (cameraController.value.isCaptureOrientationLocked) {
          await cameraController.unlockCaptureOrientation();
          showInSnackBar('Capture orientation unlocked');
        } else {
          await cameraController.lockCaptureOrientation();
          showInSnackBar(
              'Capture orientation locked to ${cameraController.value.lockedCaptureOrientation.toString().split('.').last}');
        }
      }
    } on CameraException catch (e) {
      _showCameraException(e);
    }
  }

  void onSetFlashModeButtonPressed(FlashMode mode) {
    setFlashMode(mode).then((_) {
      if (mounted) {
        setState(() {});
      }
      showInSnackBar('Flash mode set to ${mode.toString().split('.').last}');
    });
  }

  void onSetExposureModeButtonPressed(ExposureMode mode) {
    setExposureMode(mode).then((_) {
      if (mounted) {
        setState(() {});
      }
      showInSnackBar('Exposure mode set to ${mode.toString().split('.').last}');
    });
  }

  void onSetFocusModeButtonPressed(FocusMode mode) {
    setFocusMode(mode).then((_) {
      if (mounted) {
        setState(() {});
      }
      showInSnackBar('Focus mode set to ${mode.toString().split('.').last}');
    });
  }

  void onVideoRecordButtonPressed() {
    startVideoRecording().then((_) {
      if (mounted) {
        setState(() {});
      }
    });
  }

  void onStopButtonPressed() {
    stopVideoRecording().then((XFile? file) {
      if (mounted) {
        setState(() {});
      }
      if (file != null) {
        showInSnackBar('Video recorded to ${file.path}');
        videoFile = file;
        //_startVideoPlayer();
      }
    });
  }

  Future<void> onPausePreviewButtonPressed() async {
    final CameraController? cameraController = controller;

    if (cameraController == null || !cameraController.value.isInitialized) {
      showInSnackBar('Error: select a camera first.');
      return;
    }

    if (cameraController.value.isPreviewPaused) {
      await cameraController.resumePreview();
    } else {
      await cameraController.pausePreview();
    }

    if (mounted) {
      setState(() {});
    }
  }

  void onPauseButtonPressed() {
    pauseVideoRecording().then((_) {
      if (mounted) {
        setState(() {});
      }
      showInSnackBar('Video recording paused');
    });
  }

  void onResumeButtonPressed() {
    resumeVideoRecording().then((_) {
      if (mounted) {
        setState(() {});
      }
      showInSnackBar('Video recording resumed');
    });
  }

  Future<void> startVideoRecording() async {
    final CameraController? cameraController = controller;

    if (cameraController == null || !cameraController.value.isInitialized) {
      showInSnackBar('Error: select a camera first.');
      return;
    }

    if (cameraController.value.isRecordingVideo) {
      // A recording is already started, do nothing.
      return;
    }

    try {
      await cameraController.startVideoRecording();
    } on CameraException catch (e) {
      _showCameraException(e);
      return;
    }
  }

  Future<XFile?> stopVideoRecording() async {
    final CameraController? cameraController = controller;

    if (cameraController == null || !cameraController.value.isRecordingVideo) {
      return null;
    }

    try {
      return cameraController.stopVideoRecording();
    } on CameraException catch (e) {
      _showCameraException(e);
      return null;
    }
  }

  Future<void> pauseVideoRecording() async {
    final CameraController? cameraController = controller;

    if (cameraController == null || !cameraController.value.isRecordingVideo) {
      return;
    }

    try {
      await cameraController.pauseVideoRecording();
    } on CameraException catch (e) {
      _showCameraException(e);
      rethrow;
    }
  }

  Future<void> resumeVideoRecording() async {
    final CameraController? cameraController = controller;

    if (cameraController == null || !cameraController.value.isRecordingVideo) {
      return;
    }

    try {
      await cameraController.resumeVideoRecording();
    } on CameraException catch (e) {
      _showCameraException(e);
      rethrow;
    }
  }

  Future<void> setFlashMode(FlashMode mode) async {
    if (controller == null) {
      return;
    }

    try {
      await controller!.setFlashMode(mode);
    } on CameraException catch (e) {
      _showCameraException(e);
      rethrow;
    }
  }

  Future<void> setExposureMode(ExposureMode mode) async {
    if (controller == null) {
      return;
    }

    try {
      await controller!.setExposureMode(mode);
    } on CameraException catch (e) {
      _showCameraException(e);
      rethrow;
    }
  }

  Future<void> setExposureOffset(double offset) async {
    if (controller == null) {
      return;
    }

    setState(() {
      _currentExposureOffset = offset;
    });
    try {
      offset = await controller!.setExposureOffset(offset);
    } on CameraException catch (e) {
      _showCameraException(e);
      rethrow;
    }
  }

  Future<void> setFocusMode(FocusMode mode) async {
    if (controller == null) {
      return;
    }

    try {
      await controller!.setFocusMode(mode);
    } on CameraException catch (e) {
      _showCameraException(e);
      rethrow;
    }
  }

  // Future<void> _startVideoPlayer() async {
  //   if (videoFile == null) {
  //     return;
  //   }

  //   final VideoPlayerController vController = kIsWeb
  //       ? VideoPlayerController.networkUrl(Uri.parse(videoFile!.path))
  //       : VideoPlayerController.file(File(videoFile!.path));

  //   videoPlayerListener = () {
  //     if (videoController != null) {
  //       // Refreshing the state to update video player with the correct ratio.
  //       if (mounted) {
  //         setState(() {});
  //       }
  //       videoController!.removeListener(videoPlayerListener!);
  //     }
  //   };
  //   vController.addListener(videoPlayerListener!);
  //   await vController.setLooping(true);
  //   await vController.initialize();
  //   await videoController?.dispose();
  //   if (mounted) {
  //     setState(() {
  //       imageFile = null;
  //       videoController = vController;
  //     });
  //   }
  //   await vController.play();
  // }

  Future<XFile?> takePicture() async {
    final CameraController? cameraController = controller;
    if (cameraController == null || !cameraController.value.isInitialized) {
      showInSnackBar('Error: select a camera first.');
      return null;
    }

    if (cameraController.value.isTakingPicture) {
      // A capture is already pending, do nothing.
      return null;
    }

    try {
      final XFile file = await cameraController.takePicture();
      return file;
    } on CameraException catch (e) {
      _showCameraException(e);
      return null;
    }
  }

  void _showCameraException(CameraException e) {
    _logError(e.code, e.description);
    showInSnackBar('Error: ${e.code}\n${e.description}');
  }
}

/// CameraApp is the Main Application.
class CameraApp extends StatelessWidget {
  /// Default Constructor
  const CameraApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: CameraExampleHome(),
    );
  }
}

List<CameraDescription> _cameras = <CameraDescription>[];

Future<void> main() async {
  // Fetch the available cameras before initializing the app.
  try {
    WidgetsFlutterBinding.ensureInitialized();
    _cameras = await availableCameras();
  } on CameraException catch (e) {
    _logError(e.code, e.description);
  }
  runApp(const CameraApp());
}
```

</details>


### Screenshots or Videos

_No response_

### Logs

<details open><summary>Logs</summary>
https://pastebin.com/dH9JpDC8

</details>


### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
[✓] Flutter (Channel stable, 3.24.0, on Ubuntu 24.04.1 LTS 6.8.0-51-generic, locale en_US.UTF-8)
    • Flutter version 3.24.0 on channel stable at /home/enery/snap/flutter/common/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 80c2e84975 (5 months ago), 2024-07-30 23:06:49 +0700
    • Engine revision b8800d88be
    • Dart version 3.5.0
    • DevTools version 2.37.2

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /home/enery/Android/Sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /snap/android-studio/157/jbr/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.10+0-17.0.10b1087.21-11572160)
    • All Android licenses accepted.

[✓] Chrome - develop for the web
    • Chrome at google-chrome

[✓] Linux toolchain - develop for Linux desktop
    • clang version 10.0.0-4ubuntu1
    • cmake version 3.16.3
    • ninja version 1.10.0
    • pkg-config version 0.29.1

[✓] Android Studio (version 2023.3)
    • Android Studio at /snap/android-studio/157
    • Flutter plugin version 80.0.1
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.10+0-17.0.10b1087.21-11572160)

[✓] VS Code (version 1.96.2)
    • VS Code at /snap/code/current/usr/share/code
    • Flutter extension version 3.102.0

[✓] Connected device (3 available)
    • Mi A2 Lite (mobile) • 07fa33550705 • android-arm64  • Android 10 (API 29)
    • Linux (desktop)     • linux        • linux-x64      • Ubuntu 24.04.1 LTS 6.8.0-51-generic
    • Chrome (web)        • chrome       • web-javascript • Google Chrome 131.0.6778.85

[✓] Network resources
    • All expected network resources are available.

• No issues found!
```

</details>