我正在使用Geolocator
插件来获取设备的当前位置,并使用谷歌地图插件将地图小部件集成到颤动中
谷歌地图工作正常,但Geolocator
它给了我这个错误:
D/permissions_handler(10148): No permissions found in manifest for: $permission
D/permissions_handler(10148): No permissions found in manifest for: $permission
而错误仍然出现,任何想法为什么会发生这种情况?
在Androidmanifest.xml
文件中我添加了这些权限
<manifest>:
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
问题是google_maps_flutter包需要访问您的位置的权限,但该包没有本机代码来请求该权限。
因此,您需要编写本机代码或只安装另一个能够获得该权限的包。
安装此:https://pub.dartlang.org/packages/location
然后:
getLocationPermission() async {
final Location location = new Location();
try {
location.requestPermission(); //to lunch location permission popup
} on PlatformException catch (e) {
if (e.code == 'PERMISSION_DENIED') {
print('Permission denied');
}
}
}
或者如果你想要更加可靠的代码,这是我的一些项目的代码(带位置包):
//Show some loading indicator depends on this boolean variable
bool askingPermission = false;
@override
void initState() {
this.getLocationPermission();
super.initState();
}
Future<bool> getLocationPermission() async {
setState(() {
this.askingPermission = true;
});
bool result;
final Location location = Location();
try {
if (await location.hasPermission())
result = true;
else {
result = await location.requestPermission();
}
print('getLocationPermission: '
'${result ? 'Access Allowed' : 'Access Denied'}');
} catch (log, trace) {
result = false;
print('getLocationPermission/log: $log');
print('getLocationPermission/trace: $trace');
} finally {
setState(() {
this.askingPermission = false;
});
}
return result;
}
将此包添加到flutter项目.. - pubspec.yaml
-dependencies:
location: ^2.3.4