嘿，我是初学者Flutter，我试图创建一个步计数器应用程序，但我得到这个错误的iOS和Android模拟器和我的物理设备（Galaxy S9）以及。
下面是我的代码：
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:pedometer/pedometer.dart';
void main() => runApp(const MyApp());
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
late String _timeString;
int initSteps = 0;
int initKcals = 0;
double initMiles = 0.0;
int initMinutes = 0;
double progressValue = 0.0;
StreamSubscription<StepCount>? _subscription;
@override
void initState() {
super.initState();
_listenToSteps();
_timeString = _formatDateTime(DateTime.now());
Timer.periodic(const Duration(seconds: 1), (Timer t) => _getTime());
}
String _formatDateTime(DateTime dateTime) {
return '${dateTime.hour.toString().padLeft(2, '0')}:${dateTime.minute.toString().padLeft(2, '0')}';
}
void _getTime() {
final DateTime now = DateTime.now();
final String formattedDateTime = _formatDateTime(now);
setState(() {
_timeString = formattedDateTime;
});
}
void _listenToSteps() {
_subscription = Pedometer.stepCountStream.listen(
_onStepCount,
onError: _onError,
onDone: _onDone,
cancelOnError: true,
);
}
void _onStepCount(StepCount event) {
setState(() {
initSteps = event.steps;
progressValue = event.steps / 10000;
print("Step Count: ${event.steps}");
});
}
void _onDone() {} // Handle when stream is done if needed
void _onError(error) {
print("An error occurred while fetching step count: $error");
}
@override
void dispose() {
_subscription?.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
backgroundColor: Colors.black,
body: Column(
children: [
Container(
padding: const EdgeInsets.fromLTRB(25.0, 65, 25.0, 0.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
const Text('iCounter',
style: TextStyle(
color: Colors.green,
fontSize: 30,
fontWeight: FontWeight.bold)),
Text(_timeString,
style: const TextStyle(
color: Colors.white,
fontSize: 20,
fontWeight: FontWeight.bold)),
],
),
),
const SizedBox(height: 25.0),
LinearProgressIndicator(
value: progressValue, // progress
backgroundColor: Colors.grey, // Color of the track
valueColor: const AlwaysStoppedAnimation<Color>(
Colors.green), // Color of the progress bar
),
const SizedBox(height: 30.0),
const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.keyboard_arrow_left,
color: Colors.grey,
size: 60.0,
),
SizedBox(width: 30.0),
Text(
'Today',
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 35.0,
),
),
SizedBox(width: 30.0),
Icon(
Icons.keyboard_arrow_right,
color: Colors.grey,
size: 60.0,
),
],
),
const SizedBox(height: 48),
Center(
child: Text(
'$initSteps',
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 100.0,
),
),
),
const Text(
'steps today',
style: TextStyle(
color: Colors.grey,
fontSize: 20.0,
),
),
const SizedBox(height: 30.0),
Text(
'$initSteps/10.000s',
style: const TextStyle(
color: Colors.green,
fontSize: 25.0,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 40.0),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Column(
children: [
Text(
'$initKcals',
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 25.0,
),
),
const SizedBox(height: 5.0),
const Text(
'KCAL',
style: TextStyle(
color: Colors.grey,
),
),
],
),
const SizedBox(width: 50.0),
Column(
children: [
Text(
'$initMiles',
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 25.0,
),
),
const SizedBox(height: 5.0),
const Text(
'MILES',
style: TextStyle(
color: Colors.grey,
),
),
],
),
const SizedBox(width: 50.0),
Column(
children: [
Text(
'$initMinutes',
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 25.0,
),
),
const SizedBox(height: 5.0),
const Text(
'Minutes',
style: TextStyle(
color: Colors.grey,
),
),
],
),
],
),
const SizedBox(height: 40.0),
const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'MON',
style: TextStyle(
color: Colors.grey,
),
),
],
),
SizedBox(width: 8.0),
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'TUE',
style: TextStyle(
color: Colors.grey,
),
),
],
),
SizedBox(width: 8.0),
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'WED',
style: TextStyle(
color: Colors.grey,
),
),
],
),
SizedBox(width: 8.0),
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'THU',
style: TextStyle(
color: Colors.grey,
),
),
],
),
SizedBox(width: 8.0),
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'FRI',
style: TextStyle(
color: Colors.grey,
),
),
],
),
SizedBox(width: 8.0),
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'SAT',
style: TextStyle(
color: Colors.grey,
),
),
],
),
SizedBox(width: 8.0),
Column(
children: [
Icon(
Icons.circle_outlined,
color: Colors.white,
size: 50.0,
),
SizedBox(width: 8.0),
Text(
'SUN',
style: TextStyle(
color: Colors.grey,
),
),
],
),
],
),
],
),
),
);
}
}这是我得到的错误：
D/SensorManager( 8584): registerListener fail (1) :: 1, step_counter Non-wakeup, 0, 0,我试过其他设备和其他模拟器，但同样的问题，我不知道是什么问题.我还添加了所有权限的清单和信息为Android和iOS的，如果有人可以
1条答案
按热度按时间ig9co6j11#
确保您的应用具有访问步数计数器的必要权限，例如：通过许可证包
只有到那时，