Flutter HEALTH 包从用户获取步骤始终返回 null？

Question

我正在开发一个个人项目，我正在使用 flutter 开发一个应用程序（跨平台），该应用程序从 google fit (Android) 或 Apple Health 读取用户的健康数据。 我正在使用这个包，甚至与文档中的代码完全相同（我目前仅在 Android 上进行测试）：

Future fetchStepData() async {
    int? steps;

    // get steps for today (i.e., since midnight)
    final now = DateTime.now();
    final midnight = DateTime(now.year, now.month, now.day);

    bool requested = await health.requestAuthorization([HealthDataType.STEPS]);

    if (requested) {
      try {
        steps = await health.getTotalStepsInInterval(midnight, now);
      } catch (error) {
        print("Caught exception in getTotalStepsInInterval: $error");
      }

      print('Total number of steps: $steps');

      setState(() {
        _nofSteps = (steps == null) ? 0 : steps;
        _state = (steps == null) ? AppState.NO_DATA : AppState.STEPS_READY;
      });
    } else {
      print("Authorization not granted - error in authorization");
      setState(() => _state = AppState.DATA_NOT_FETCHED);
    }
  }

然后我用await调用这个函数，并且我还在所有Android清单文件中插入了正确的权限：

我还为该项目设置了 OAuth2 客户端 ID，并将我的 google 帐户添加为测试用户。

但是该函数将变量步骤始终设置为空？布尔变量“requested”为 true，所以看起来实际连接正在工作？

我对自己真的很失望，伙计们，我真的需要帮助 - 谢谢！

我尝试添加正确的android权限，明确请求权限，不同的时间间隔，但对我来说没有任何作用，我总是得到一个空值。

Answer 1

我也有类似的问题。添加具有指定范围的 Google 登录信息会有所帮助。我首先使用代码登录用户：

class LoginController extends GetxController {
  final _googleSignIn = GoogleSignIn(scopes: ["https://www.googleapis.com/auth/fitness.activity.read"]);
  var googleAccount = Rx<GoogleSignInAccount?>(null);

  login() async {
    googleAccount.value = await _googleSignIn.signIn();
  }
}

然后我使用代码检索数据：

  getSteps() async {
    await Permission.activityRecognition.request();

    HealthFactory health = HealthFactory();

    // define the types to get
    var types = [
      HealthDataType.STEPS,
    ];

    // requesting access to the data types before reading them
    bool requested = await health.requestAuthorization(types);

    var now = DateTime.now();
    var steps = await health.getTotalStepsInInterval(now.subtract(Duration(days: 1)), now);
  }

Answer 2

我正在使用上述内容，但仍未获得健康数据的许可。

还有其他方法可以得到正确的回应吗？

  Future fetchData() async {
// Example: Check and request permissions
await _checkAndRequestPermissions();
await ref.read(googleLoginProvider.notifier).login();

// configure the health plugin before use.
// HealthFactory().configure();

/// Get everything from midnight until now
final DateTime startDate = DateTime(2020, 11, 07, 0, 0, 0);
final DateTime endDate = DateTime(2025, 11, 07, 23, 59, 59);

final HealthFactory health = HealthFactory();
// final HealthFactory health = HealthFactory(useHealthConnectIfAvailable: true);

/// Define the types to get.
final List<HealthDataType> types = [
  HealthDataType.STEPS,
  HealthDataType.HEIGHT,
  // HealthDataType.WEIGHT,
  // HealthDataType.BLOOD_GLUCOSE,
  // HealthDataType.DISTANCE_WALKING_RUNNING,
];

setState(() => _state = AppState.FETCHING_DATA);

/// You MUST request access to the data types before reading them
final bool accessWasGranted = await health.requestAuthorization(types);
log("Authorization result: $accessWasGranted");
int steps = 0;

if (accessWasGranted) {
  try {
    /// Fetch new data
    final List<HealthDataPoint> healthData =
        await health.getHealthDataFromTypes(startDate, endDate, types);

    /// Save all the new data points
    _healthDataList.addAll(healthData);
  } catch (e) {
    log("Caught exception in getHealthDataFromTypes: $e");
  }

  /// Filter out duplicates
  _healthDataList = HealthFactory.removeDuplicates(_healthDataList);

  /// log the results
  for (final x in _healthDataList) {
    log("Data point: $x");
    steps += x.value.round();
  }

  log("Steps: $steps");

  /// Update the UI to display the results
  setState(() {
    _state =
        _healthDataList.isEmpty ? AppState.NO_DATA : AppState.DATA_READY;
  });
} else if (!accessWasGranted) {
  log("Authorization not granted");
  log("User did not grant access to health data. Please enable permissions 
        in the settings.");
  setState(() => _state = AppState.DATA_NOT_FETCHED);
 }
}

&检查请求权限是

Future<void> _checkAndRequestPermissions() async {
if (Platform.isAndroid) {
  final PermissionStatus activityRecognitionStatus =
      await Permission.activityRecognition.status;
  final PermissionStatus bodySensorsStatus =
      await Permission.sensors.status;
  if (activityRecognitionStatus.isDenied || bodySensorsStatus.isDenied) {
    // If permissions are denied, request them
    await [
      Permission.activityRecognition,
      Permission.sensors,
    ].request();
  }
 }
}