My Camera

my_camera.dart

import 'dart:io';

import 'package:camera/camera.dart';
import 'package:path_provider/path_provider.dart';

class MyCamera {

  ///
  ///
  ///
  static Future<bool> init() async {
    bool _success = false;

    CameraController cameraController = await _getController();

    if (cameraController != null) {
      await cameraController.initialize();
      _success = true;
    }

    await cameraController.dispose();

    return _success;
  }

  ///
  ///
  ///
  static Future<String> takePicture() async {
    Directory appDocDir = await getApplicationDocumentsDirectory();

    CameraController cameraController = await _getController();

    if (cameraController != null) {
      await cameraController.initialize();

      await Future.delayed(Duration(milliseconds: 1000));

      String file =
          '${appDocDir.path}/foto_${DateTime.now().millisecondsSinceEpoch}.jpg';

      await cameraController.takePicture(file);

      return file;
    }

    return null;
  }

  ///
  ///
  ///
  static Future<CameraController> _getController() async {
    List<CameraDescription> cameras = await availableCameras();

    CameraController cameraController;

    for (CameraDescription camera in cameras) {
      if (camera.lensDirection == CameraLensDirection.front &&
          cameraController == null) {
        cameraController = CameraController(camera, ResolutionPreset.medium);
      }
    }

    return cameraController;
  }
}