fluttermocklocation #

此 Flutter 插件旨在帮助开发者在测试阶段为Android设备设置模拟位置数据。例如，对于地理围栏应用和其他依赖于GPS定位的应用程序来说，这非常有用。

通过启用位置数据的模拟，开发者可以确保他们的应用程序在各种地理环境中表现正常，而无需物理移动设备。这对于彻底测试基于位置的功能至关重要，确保可以在广泛的场景中进行高效和有效的测试。

要使用基于该插件的应用程序，请在您的Android设备上启用开发者选项。

在开发者选项中，选择“选择模拟位置应用”，然后选择您的应用。

示例代码: example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';
import ‘package:flutter/services.dart’;
import ‘package:fluttermocklocation/fluttermocklocation.dart’;
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
String _platformVersion = ‘未知’;
bool _error = false;
String _positionUpdated = ‘’;
String _errorString = ‘’;
final _fluttermocklocationPlugin = Fluttermocklocation();
final TextEditingController _latController = TextEditingController();
final TextEditingController _lngController = TextEditingController();
final TextEditingController _altitudeController = TextEditingController();
final TextEditingController _delayController = TextEditingController();
@override
void initState() {
super.initState();
initPlatformState();
// 监听位置更新
_fluttermocklocationPlugin.locationUpdates.listen((locationData) {
  // 获取当前时间戳
  final DateTime now = DateTime.now();
  final String formattedTimestamp =
      "${now.year}-${now.month.toString().padLeft(2, '0')}-${now.day.toString().padLeft(2, '0')} "
      "${now.hour.toString().padLeft(2, '0')}:${now.minute.toString().padLeft(2, '0')}:${now.second.toString().padLeft(2, '0')}";

  // 格式化位置字符串
  final String positionString = '纬度: ${locationData['latitude']}\n'
      '经度: ${locationData['longitude']}\n'
      '海拔: ${locationData['altitude']}\n'
      '时间戳: $formattedTimestamp';

  // 更新位置信息
  setState(() {
    _positionUpdated = positionString;
  });

  print(_positionUpdated);
});
}
@override
void dispose() {
super.dispose();
}
// 平台消息是异步的，因此我们初始化时使用异步方法。
Future<void> initPlatformState() async {
String platformVersion;
try {
platformVersion = await _fluttermocklocationPlugin.getPlatformVersion() ??
‘未知平台版本’;
} on PlatformException {
platformVersion = ‘获取平台版本失败。’;
}
if (!mounted) return;

setState(() {
  _platformVersion = platformVersion;
});
}
void _updateLocation() async {
try {
setState(() {
_error = false;
_errorString = ‘’;
});
  final double latitude = double.parse(_latController.text);
  final double longitude = double.parse(_lngController.text);
  final double altitude = double.parse(_altitudeController.text);
  final int delay =
      int.tryParse(_delayController.text) ?? 5000; // 默认值为5000毫秒

  try {
    await Fluttermocklocation().updateMockLocation(
      latitude,
      longitude,
      altitude: altitude,
      delay: delay,
    );
    print(
        "模拟位置已更新: $latitude, $longitude, $altitude 延迟 $delay 毫秒");
  } catch (e) {
    print("更新位置时发生错误: $e");
    setState(() {
      _errorString =
          '要使用此应用程序，请在您的Android设备上启用开发者选项。\n\n在开发者选项中选择\n\n"选择模拟位置应用"\n\n并选择此应用。';
      _error = true;
    });
  }
} catch (e) {
  setState(() {
    _errorString = '无效的纬度、经度或延迟。';
    _error = true;
  });
}
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text(‘Flutter 模拟位置’),
),
body: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Center(
child: Text(‘运行在: $_platformVersion\n’),
),
TextField(
controller: _latController,
decoration: const InputDecoration(labelText: ‘纬度’),
keyboardType: TextInputType.number,
),
TextField(
controller: _lngController,
decoration: const InputDecoration(labelText: ‘经度’),
keyboardType: TextInputType.number,
),
TextField(
controller: _altitudeController,
decoration: const InputDecoration(labelText: ‘海拔’),
keyboardType: TextInputType.number,
),
TextField(
controller: _delayController,
decoration: const InputDecoration(labelText: ‘延迟 (毫秒)’),
keyboardType: TextInputType.number,
),
ElevatedButton(
onPressed: _updateLocation,
child: const Text(‘设置模拟位置’),
),
const SizedBox(
height: 20,
),
(_positionUpdated != ‘’)
? Card(
child: Padding(
padding: const EdgeInsets.all(12.0),
child: Text(
_positionUpdated,
),
),
)
: Container(),
_error
? Card(
child: Padding(
padding: const EdgeInsets.all(12.0),
child: Text(
_errorString,
style: const TextStyle(color: Colors.red),
),
),
)
: Container(),
],
),
),
),
);
}
}