Using Google fit API in Flutter

I need my app to read step count from Google Fit. I'm using health 3.05 package. For now I copied the example code to see if it works and unfortunately it's not. Of course I did every step from this packge readme. I set up OAuth2 Client ID, I changed as they shown and in AndroidManifest.xml I put <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION"/> . However after running app I don't get any permission window and when I click the button to get data I got an error "Authorization not granted" in console. What should I do? Thanks

Here is my code that I copied form package example:

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:health/health.dart';

class DailyStepsScreen extends StatefulWidget {
  _DailyStepsScreenState createState() => _DailyStepsScreenState();

enum AppState {

class _DailyStepsScreenState extends State<DailyStepsScreen> {
  List<HealthDataPoint> _healthDataList = [];
  AppState _state = AppState.DATA_NOT_FETCHED;

  void initState() {

  Future<void> fetchData() async {
    /// Get everything from midnight until now
    DateTime startDate = DateTime(2020, 11, 07, 0, 0, 0);
    DateTime endDate = DateTime(2025, 11, 07, 23, 59, 59);

    HealthFactory health = HealthFactory();

    /// Define the types to get.
    List<HealthDataType> types = [

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

    /// You MUST request access to the data types before reading them
    bool accessWasGranted = await health.requestAuthorization(types);

    int steps = 0;

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

        /// Save all the new data points
      } catch (e) {
        print("Caught exception in getHealthDataFromTypes: $e");

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

      /// Print the results
      _healthDataList.forEach((x) {
        print("Data point: $x");
        steps += x.value.round();

      print("Steps: $steps");

      /// Update the UI to display the results
      setState(() {
        _state =
        _healthDataList.isEmpty ? AppState.NO_DATA : AppState.DATA_READY;
    } else {
      print("Authorization not granted");
      setState(() => _state = AppState.DATA_NOT_FETCHED);

  Widget _contentFetchingData() {
    return Column(
      children: <Widget>[
            padding: EdgeInsets.all(20),
            child: CircularProgressIndicator(
              strokeWidth: 10,
        Text('Fetching data...')

  Widget _contentDataReady() {
    return ListView.builder(
        itemCount: _healthDataList.length,
        itemBuilder: (_, index) {
          HealthDataPoint p = _healthDataList[index];
          return ListTile(
            title: Text("${p.typeString}: ${p.value}"),
            trailing: Text('${p.unitString}'),
            subtitle: Text('${p.dateFrom} - ${p.dateTo}'),

  Widget _contentNoData() {
    return Text('No Data to show');

  Widget _contentNotFetched() {
    return Text('Press the download button to fetch data');

  Widget _authorizationNotGranted() {
    return Text('''Authorization not given.
        For Android please check your OAUTH2 client ID is correct in Google Developer Console.
         For iOS check your permissions in Apple Health.''');

  Widget _content() {
    if (_state == AppState.DATA_READY)
      return _contentDataReady();
    else if (_state == AppState.NO_DATA)
      return _contentNoData();
    else if (_state == AppState.FETCHING_DATA)
      return _contentFetchingData();
    else if (_state == AppState.AUTH_NOT_GRANTED)
      return _authorizationNotGranted();

    return _contentNotFetched();

  Widget build(BuildContext context) {
    return Scaffold(
          appBar: AppBar(
            title: const Text('Plugin example app'),
            actions: <Widget>[
                icon: Icon(Icons.file_download),
                onPressed: () {
          body: Center(
            child: _content(),

How many English words
do you know?
Test your English vocabulary size, and measure
how many words do you know
Online Test
Powered by Examplum