How can I integrate Google FIT in Flutter app? - flutter

Question

I want steps count and calories burned data in my flutter app. I am using health: ^3.1.1+1 package but I'm getting "Authorization not granted" even after giving all permission. I even used permission handler for permission and I was successfully getting permission with permission handler, still I am not getting data from health package. Please help me with the process to authorize my app to fetch data from Google Fit API.
I have successfully generate my OAuth client id from google console and added the json file in my project. Please let me know if there is any other place where I need to add my client id.
I am using given below sample code provided in with the package.
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:health/health.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
#override
_MyAppState createState() => _MyAppState();
}
enum AppState {
DATA_NOT_FETCHED,
FETCHING_DATA,
DATA_READY,
NO_DATA,
AUTH_NOT_GRANTED
}
class _MyAppState extends State<MyApp> {
List<HealthDataPoint> _healthDataList = [];
AppState _state = AppState.DATA_NOT_FETCHED;
#override
void initState() {
super.initState();
}
/// Fetch data from the healt plugin and print it
Future 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 = [
HealthDataType.STEPS,
HealthDataType.WEIGHT,
HealthDataType.HEIGHT,
HealthDataType.BLOOD_GLUCOSE,
HealthDataType.DISTANCE_WALKING_RUNNING,
];
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
_healthDataList.addAll(healthData);
} 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: $steps");
// update the UI to display the results
setState(() {
_state =
_healthDataList.isEmpty ? AppState.NO_DATA : AppState.DATA_READY;
});
} else {
print("Authorization not granted");
setState(() => _state = AppState.DATA_NOT_FETCHED);
}
}
Widget _contentFetchingData() {
return Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
padding: EdgeInsets.all(20),
child: CircularProgressIndicator(
strokeWidth: 10,
)),
Text('Fetching data...')
],
);
}
Widget _contentDataReady() {
return ListView.builder(
itemCount: _healthDataList.length,
itemBuilder: (_, index) {
HealthDataPoint p = _healthDataList[index];
return ListTile(
title: Text("${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();
}
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
actions: <Widget>[
IconButton(
icon: Icon(Icons.file_download),
onPressed: () {
fetchData();
},
)
],
),
body: Center(
child: _content(),
)),
);
}
}

Answer 1

Go to Google Cloud Platform > Apis & Services > OAuth consent screen and check if your app is in Testing mode and add gmails to allow user to use the Oauth
Remember to upload the android debug key sha1!

Answer 2

New version of the health package solved my problem.