I want to get user location when the app starts.
This code runs fine when I already have the location enabled before starting the app and then I start the the app. But when it is disabled and then start the app, I am unable to get the location.
Below is what the snippet looks like:
Future<void> _isLocationEnabled() async {
_serviceEnabled = await location.serviceEnabled();
if (!_serviceEnabled) {
_serviceEnabled = await location.requestService();
if (!_serviceEnabled) {
setState(() {
_isLoading = false;
});
showModalBottomSheet(
//showing modal sheet here
});
} else {
try {
locationData = await Location().getLocation();
} catch (e) {
print(e);
}
setState(() {
_isLoading = false;
});
}
} else {
locationData = await Location().getLocation();
setState(() {
_isLoading = false;
});
}
_permissionGranted = await location.hasPermission();
if (_permissionGranted == PermissionStatus.denied) {
_permissionGranted = await location.requestPermission();
if (_permissionGranted != PermissionStatus.granted) {
return;
}
}
}
The thing is that the catch block doesnt run nor I am able to get the location.
I call this function in initState like this:
#override
void initState() {
super.initState();
_isLocationEnabled();
}
Is there something I am missing?
I had a similar issue, try to get the location after a delay.
The below code should do the trick
Future<void> _isLocationEnabled() async {
_serviceEnabled = await location.serviceEnabled();
if (!_serviceEnabled) {
_serviceEnabled = await location.requestService();
if (!_serviceEnabled) {
setState(() {
_isLoading = false;
});
showModalBottomSheet(
//showing modal sheet here
);
} else {
try {
Future.delayed(Duration(seconds: 1), () async {
locationData = await Location().getLocation();
print(locationData);
});
} catch (e) {
print(e);
}
setState(() {
_isLoading = false;
});
}
} else {
locationData = await Location().getLocation();
setState(() {
_isLoading = false;
});
}
_permissionGranted = await location.hasPermission();
if (_permissionGranted == PermissionStatus.denied) {
_permissionGranted = await location.requestPermission();
if (_permissionGranted != PermissionStatus.granted) {
return;
}
}
}
Related
I have created a reset password method but the reset email didn’t arrive to the user mail
this is the method
void forgotPass()async {
if(_emailController.text.isEmpty || !_emailController.text.contains('#')){
Methods.ErrorDailog(subtitle: "Pleas enter a valid email", context: context);
}else{
setState(() {
isLoading= true;
});
try {
await authInstance.sendPasswordResetEmail(email: _emailController.text.toLowerCase());
} on FirebaseAuthException catch (error) {
Methods.ErrorDailog(subtitle: '${error.message}', context: context);
setState(() {
isLoading = true;
});
} catch (error) {
Methods.ErrorDailog(subtitle: '$error', context: context);
setState(() {
isLoading = true;
});
} finally {
setState(() {
isLoading = false;
});
}
}
}
MissingPluginException(No implementation found for method placemarkFromCoordinates on channel flutter.baseflow.com/geocoding)
I want to access the current location of device and I am able to get it locally, but on flutter web and after deployment it gives me the exception above, how to handle this exception please.
Future<Position> _getCurrentLocation() async {
bool serviceEnabled;
LocationPermission permission;
serviceEnabled = await Geolocator.isLocationServiceEnabled();
if (!serviceEnabled) {
return Future.error('Location services are disabled.');
}
permission = await Geolocator.checkPermission();
if (permission == LocationPermission.denied) {
permission = await Geolocator.requestPermission();
if (permission == LocationPermission.denied) {
return Future.error('Location permissions are denied');
}
}
if (permission == LocationPermission.deniedForever) {
// Permissions are denied forever, handle appropriately.
return Future.error(
'Location permissions are permanently denied, we cannot request permissions.');
}
Geolocator.getCurrentPosition(
desiredAccuracy: LocationAccuracy.best,
forceAndroidLocationManager: true)
.then((Position position) {
setState(() {
_currentPosition = position;
_getAddressFromLatLng();
});
}).catchError((e) {
if (kDebugMode) {
print(e);
}
});
return await Geolocator.getCurrentPosition();
}
Here I am converting the LAT LNG to Address.
_getAddressFromLatLng() async {
try {
List<Placemark> placemarks = await placemarkFromCoordinates(
_currentPosition!.latitude, _currentPosition!.longitude);
Placemark place = placemarks[0];
setState(() {
_currentAddress = "${place.locality}, ${place.country}";
});
} catch (e) {
if (kDebugMode) {
print(e);
}
}
}
I am using flutter_sound to record voice(audio).
I can't see any file save on the emulator after the recording stops.
Recorder class:
import 'package:flutter/material.dart';
import 'package:flutter_sound/flutter_sound.dart';
import 'package:permission_handler/permission_handler.dart';
final _pathToAudio = 'myFile.aac';
class Recorder {
FlutterSoundRecorder? _recorder;
bool _isRecorderInitialized = false;
bool get isRecording => _recorder!.isRecording;
Future init() async {
_recorder = FlutterSoundRecorder();
final status = await Permission.microphone.request();
if (status != PermissionStatus.granted) {
throw RecordingPermissionException('Recording permission required.');
}
await _recorder!.openAudioSession();
_isRecorderInitialized = true;
}
void dispose() {
_recorder!.closeAudioSession();
_recorder = null;
_isRecorderInitialized = false;
}
Future record() async {
if (!_isRecorderInitialized) {
return;
}
print('recording....');
await _recorder!.startRecorder(
toFile: _pathToAudio,
codec: Codec.aacADTS,
);
}
Future stop() async {
if (!_isRecorderInitialized) {
return;
}
await _recorder!.stopRecorder();
print('stopped....'); //I GET THIS MESSAGE SO I AM GUESSING THE RECORDING IS HAPPENING BUT CANT FIND THE FILE LATER IN THE EMULATOR.
}
Future toggleRecording() async {
if (_recorder!.isStopped) {
await record();
} else {
await stop();
}
}
}
Function on button click:
void startStopRecording() async {
final isRecordingOn = await recorder.toggleRecording();
setState(() {
_isRecording = recorder.isRecording;
});
if(_isRecording) {
startTimer();
_stopwatch.start();
} else {
stopTimer();
_stopwatch.stop();
}
}
I am using WorkManager for Background Service. My code is as follows
void callbackDispatcher() {
Workmanager.executeTask((task, inputData) async {
switch (task) {
case "uploadLocalData":
print("this method was called from background!");
await BackgroundProcessHandler().uploadLocalData();
print("background Executed!");
return true;
break;
case Workmanager.iOSBackgroundTask:
print("iOS background fetch delegate ran");
return true;
break;
}
return false;
});
}
is there any way to wait for async method in executeTask ?
The way to asyncify non-async things is through completers. You create a completer, await on its future and complete it in the future.
Completer uploadCompleter = Completer();
void callbackDispatcher() {
Workmanager.executeTask((task, inputData) async {
switch (task) {
case "uploadLocalData":
print("this method was called from background!");
await BackgroundProcessHandler().uploadLocalData();
print("background Executed!");
uploadCompleter.complete();
return true;
break;
case Workmanager.iOSBackgroundTask:
print("iOS background fetch delegate ran");
return true;
break;
}
return false;
});
}
// somewhere else
await uploadCompleter.future;
When the map is built for the first time
GoogleMap(
initialCameraPosition: _startPosition,
myLocationEnabled: true,
);
the system asks for permission
How can I catch the moment when the user has made a choice?
You can use hasPermission method of location class using location plugin. From this you can catch the moment.
please look at below :-
final _hasLocationPermission = await location.hasPermission();
if (_hasLocationPermission == PermissionStatus.granted) {
//Code here
} else if (_hasLocationPermission == PermissionStatus.denied) {
final _permissionGranted = await location.requestPermission();
if (_permissionGranted == PermissionStatus.granted) {
//Code here
} else if (_permissionGranted == PermissionStatus.denied) {
//Code here
}
}