我需要我的应用程序从 Google Fit 读取步数。我正在使用健康 3.05 包。现在我复制了示例代码以查看它是否有效，不幸的是它不是。当然，我从这个包自述文件中完成了每一步。我设置了 OAuth2 客户端 ID，我更改了 gradle.properties，因为它们显示在 AndroidManifest.xml 中<uses-permission android:name="android.permission.ACTIVITY_RECOGNITION"/> 。但是，在运行应用程序后，我没有获得任何权限窗口，当我单击按钮获取数据时，我在控制台中收到错误“未授予授权”。我应该怎么办？谢谢
这是我从包示例中复制的代码：
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(),
)
);
}
}
