在Flutter中使用Google fit API

Question

我需要我的应用程序从Google Fit读取步数。我使用的是health3.05软件包。现在，我复制了示例代码，看看它是否有效，但不幸的是，它不起作用。当然，我完成了这个包装自述中的每一步。我设置了OAuth2客户端ID，如图所示更改了grade.properties，并在AndroidManifest.xml中放入了<uses-permission android:name="android.permission.ACTIVITY_RECOGNITION"/>。然而，在运行应用程序后，我没有得到任何权限窗口，当我点击按钮获取数据时，我得到了一个错误"；未授予授权"；在控制台中。我该怎么办？感谢

这是我从包中复制的代码示例：

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:health/health.dart';
class DailyStepsScreen extends StatefulWidget {
@override
_DailyStepsScreenState createState() => _DailyStepsScreenState();
}
enum AppState {
DATA_NOT_FETCHED,
FETCHING_DATA,
DATA_READY,
NO_DATA,
AUTH_NOT_GRANTED
}
class _DailyStepsScreenState extends State<DailyStepsScreen> {
List<HealthDataPoint> _healthDataList = [];
AppState _state = AppState.DATA_NOT_FETCHED;
@override
void initState() {
super.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 = [
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 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

步骤1使用health: 3.0.4

步骤2正确设置OAuth2客户端ID，下载新的谷歌服务.json

步骤3从Android 10开始。您必须添加ACTIVITY_RECOGNITION才能在AndroidManifest.xml中获得STEP Count权限。

<uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />

步骤4然后使用permission_handler请求权限。

if (Platform.isAndroid) {
final permissionStatus = Permission.activityRecognition.request();
if (await permissionStatus.isDenied ||
await permissionStatus.isPermanentlyDenied) {
showToast(
'activityRecognition permission required to fetch your steps count');
return;
}
}

Answer 2

终于解决了这个问题！！

所以问题不在于我使用的3.4.0版本，但仍然解决了问题

未授予授权。并且卡在加载屏幕中

卡在授权请求屏幕中

当您创建OAuth 2.0同意屏幕时，请尝试将至少2个电子邮件地址添加到测试用户部分，并确保从这些电子邮件登录。

在测试用户中添加2个电子邮件地址

在那之后，确保从谷歌验证你的应用程序，它将工作，直到你测试你的应用一旦你发布应用程序，将不会工作

从谷歌验证您的应用程序

最终结果

Answer 3

步骤1使用健康：3.0.4

步骤2添加权限功能

步骤3在initstate 内部启动您的功能