Flutter -使用AndroidAlarmManager和location获取位置
Flutter -使用AndroidAlarmManager和location获取位置
提问于 2021-03-16 18:23:39
我目前正在寻找一种解决方案，每隔一分钟左右发送一次设备位置。
我正在尝试使用AndroidAlarmManager和Location库来完成此任务。下面是我的代码片段：
import 'package:android_alarm_manager/android_alarm_manager.dart';
import 'package:flutter/material.dart';
import 'package:jardiparc/services/sync.dart';
import 'package:location/location.dart';
import 'package:provider/provider.dart';
import 'jardiparc.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await AndroidAlarmManager.initialize();
runApp(Provider(create: (_) => SyncService(), lazy: false, child: JardiParc()));
await AndroidAlarmManager.periodic(Duration(seconds: 5), 1, sendLocation, exact: true);
}
void sendLocation() async {
print(DateTime.now().minute.toString() + ':' + DateTime.now().second.toString());
print('send location');
Location location = new Location();
var currentPosition = await location.getLocation();
}当我运行这段代码时，我一直收到这样的错误：
E/flutter (14488): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: MissingPluginException(No implementation found for method getLocation on channel lyokone/location)
E/flutter (14488): #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:156:7)
E/flutter (14488): <asynchronous suspension>
E/flutter (14488): #1 Location.getLocation (package:location/location.dart:135:10)我试着做了一个flutter clean，但是它不起作用。
在这方面的任何帮助都将受到高度的感谢。
干杯
回答 1
Stack Overflow用户
发布于 2021-03-16 18:51:02
检查您是否已正确初始化插件：follow this link
- Check
- ：
Location location = new Location();
bool _serviceEnabled;
PermissionStatus _permissionGranted;
LocationData _locationData;
_serviceEnabled = await location.serviceEnabled();
if (!_serviceEnabled) {
_serviceEnabled = await location.requestService();
if (!_serviceEnabled) {
return;
}
}
_permissionGranted = await location.hasPermission();
if (_permissionGranted == PermissionStatus.denied) {
_permissionGranted = await location.requestPermission();
if (_permissionGranted != PermissionStatus.granted) {
return;
}
}
_locationData = await location.getLocation();- Change
await AndroidAlarmManager.periodic(Duration(seconds: 5), 1, sendLocation, exact: true);至
await AndroidAlarmManager.periodic(Duration(seconds: 5), sendLocation, exact: true);您已将参数1设置为不应为
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原文链接：
https://stackoverflow.com/questions/66653268
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