I want my app run even app close. or just run when location coordinates changed.
I used appState but it doesnt help me because it works just when appState change.
also I used react-native-background-task but it runs every 7m30s
I use this now but it doesnt help me too. what should I do ?
location(){
this.watchId = navigator.geolocation.watchPosition(
(position) => {
console.log(position.coords.latitude);
var latitude = position.coords.latitude;
var longitude = position.coords.longitude;
this.setState({latitude: latitude, longitude: longitude});
},
(error) => this.setState({ error: error.message }),
{ enableHighAccuracy: true, timeout: 200000, maximumAge: 1000},
);
}
componentDidMount() {
this.location()
}
componentWillUnmount() {
navigator.geolocation.clearWatch(this.watchId);
}
Related
I'm implementing this code it is showing error like "undefined is not an object (evaluating 'navigator.geolocation.clearWatch')"
watchLocation = () => {
const { coordinate } = this.state;
this.watchID = navigator.geolocation.watchPosition(
position => {
const { latitude, longitude } = position.coords;
const newCoordinate = {
latitude,
longitude,
};
if (Platform.OS === 'android') {
if (this.marker) {
this.marker._component.animateMarkerToCoordinate(newCoordinate, 500); // 500 is the duration to animate the marker
}
} else {
coordinate.timing(newCoordinate).start();
}
this.setState({
latitude,
longitude,
});
},
error => console.log(error),
{
enableHighAccuracy: true,
timeout: 20000,
maximumAge: 1000,
distanceFilter: 30,
}
);
};
Can anyone let me know how to solve this? Im referring this tutorial.
Link
First install :
npm i #react-native-community/geolocation
Then -
import Geolocation from '#react-native-community/geolocation';
watchLocation = () => {
const { coordinate } = this.state;
this.watchID = Geolocation.watchPosition(
//Your Code
);
}
For reference checkout - https://www.npmjs.com/package/#react-native-community/geolocation
I've gone through the blog which you are following so according to that you'll have to do a change likewise :
componentWillUnmount() {
Geolocation.clearWatch(this.watchID);
}
Which library will be most suitable for Android and iOS to be able to track user location continuously even if the app is running in background.
I need to track user's location to send notification that the user has entered a specific location and upon exiting the user has left the location.
You can use geolocation like this way:
getUserCurrentLocation = async () => {
return new Promise((resolve, reject) => {
try {
navigator.geolocation.getCurrentPosition(position => {
const { latitude, longitude } = position.coords;
resolve({ lat: latitude, lng: longitude })
}, error => {
console.log(`ERROR(${error.code}): ${error.message}`);
resolve({ error })
} // , { enableHighAccuracy: true, timeout: 10000, maximumAge: 1000 }
);
setTimeout(() => { resolve({ error: { code: 3 } }) }, 5000);
} catch (e) {
resolve({ error: { code: 3 } })
}
})
};
I am building a React Native app and trying to get my current geocodes using navigator.geolocation It shows me an error of Location request Time out. Basically I am building a tracking app and I need to configure the exact location latitude longitude. To start tracking there is one button and click of this tracking would be start and it should be the initial point for tracking. I am using default react native geolocation API, Link https://facebook.github.io/react-native/docs/geolocation
Function to get my current location::
getLocation() {
navigator.geolocation.getCurrentPosition(response => {
console.log(response);
if (response && response.coords) {
this.saveLogs(response.coords);
}
},
(error) => {
this.onGeolocationErrorOccurCallback(error);
},
GeolocationOptions
)
}
It shows me an Error::
{"TIMEOUT":3,"POSITION_UNAVAILABLE":2,"PERMISSION_DENIED":1,"message":"Location
request timed out", "code":3}
I have added permission for Android device, and also checking by set enableHighAccuracy value to false. But it's not working for me. And I need to set enableHighAccuracy to true because I want exact geocodes to track someone. Please suggest why Location request timed out is occurring here??
UPDATE: 2021 June 12,
This approach works for me in Android Emulator. "react-native": "0.64.1" and Android API 30
import Geolocation from "#react-native-community/geolocation";
const getGeoLocaation = () => {
const config = {
enableHighAccuracy: true,
timeout: 2000,
maximumAge: 3600000,
};
Geolocation.getCurrentPosition(
info => console.log("INFO", info),
error => console.log("ERROR", error),
config,
);
};
The code below worked for me:
componentDidMount(){
if(Platform.OS === 'android'){
this.requestLocationPermission()
}else{
this._getCurrentLocation()
}
}
async requestLocationPermission() {
try {
const granted = await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION,
{
'title': 'Location Permission',
'message': 'MyMapApp needs access to your location'
}
)
if (granted === PermissionsAndroid.RESULTS.GRANTED) {
this._getCurrentLocation()
console.log("Location permission granted")
} else {
console.log("Location permission denied")
}
} catch (err) {
console.warn(err)
}
}
_getCurrentLocation = () =>{
navigator.geolocation.getCurrentPosition(
(position) => {
this.setState({
latitude: position.coords.latitude,
longitude: position.coords.longitude,
})
},
(error) => {
this.setState({ error: error.message })},
{ enableHighAccuracy: true, timeout: 200000, maximumAge: 1000 },
);
}
Permission in Manifest file:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Just make sure your location is enabled.
Try to use:
enableHighAccuracy: false
Worked for me!
const getUserCurrentLocation = () => {
let latitude, longitude
Geolocation.getCurrentPosition(
info => {
const { coords } = info
latitude = coords.latitude
longitude = coords.longitude
setLat(latitude)
setLng(longitude)
getUserCurrentAddress(latitude, longitude)
},
error => console.log(error),
{
enableHighAccuracy: false,
timeout: 2000,
maximumAge: 3600000
}
)
}
I add the same issue ({"TIMEOUT":3,"POSITION_UNAVAILABLE":2,"PERMISSION_DENIED":1,"message":"Location request timed out", "code":3})
After reading the following documents,
https://developer.android.com/training/location/permissions#java
https://github.com/react-native-geolocation/react-native-geolocation/blob/master/example/GeolocationExample.js'
I understood that, I need to add:
in the manifest AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
And increment the timeout as follow
{
enableHighAccuracy: false,
timeout: 2000,
maximumAge: 3600000
}
-- code snipet
Geolocation.getCurrentPosition(
position => {
const initialPosition = JSON.stringify(position);
console.log(initialPosition)
// this.setState({initialPosition});
},
error => console.log('Error', JSON.stringify(error)),
{enableHighAccuracy: true, timeout: 20000, maximumAge: 1000},
);
I want to keep track of the location of user using watchposition in react native and send that location to server is it possible?
I would recommend you to use this https://github.com/mauron85/react-native-background-geolocation its pretty simple to use.
I have used this plugin react-native-background-timer to enable my app to run in background as well and get device location here is the sample code
BackgroundTimer.setInterval(() => {
navigator.geolocation.getCurrentPosition((position) => {
this.setState({
startDrive: true,
latitude: position.coords.latitude,
longitude: position.coords.longitude
});
this.offlineHistoryManager(position.coords.latitude, position.coords.longitude);
}, (error) => {
LocationSwitch.enableLocationService(1000, true, () => { //
}, () => { //
},);
}, {enableHighAccuracy: false, timeout: 20000});
}, 30000);
I have a React Native app using redux and I'd like my action to set the GPS coordinates so I have them available in the store. You can see my console logs in the code, and 'action returning' is logged before 'has coordinates', which is the problem.
Component:
<TouchableOpacity style={{flex:1}} onPress={() => {
this.props.setLocation();
}}>
Action.js
export function setLocation(){
let coords = {
latitude:0,
longitude:0,
navigatorError:''
};
navigator.geolocation.getCurrentPosition(
(position) => {
console.log('has coordinates');
coords['latitude'] = position.coords.latitude
coords['longitude'] = position.coords.longitude
coords['navigatorError'] = null
},
(error) => coords['navigatorError'] = error.message,
{ enableHighAccuracy: true, timeout: 20000, maximumAge: 1000 },
);
console.log('action returning');
return {
type: 'set_location',
payload: coords
};
};
Reducer.js
export default (state = null, action) => {
switch(action.type){
case 'set_location':
return action.payload;
default:
return state;
}
}
Note: I'm not actually using redux-thunk in this project, I'm not sure if it's appropriate for what I need here.
You can use async and await to accomplish this. Basically, you need to await the coords to be returned from your asynchronous call.
Something like this:
export async function setLocation(){
let coords = {
latitude:0,
longitude:0,
navigatorError:''
};
await navigator.geolocation.getCurrentPosition(
(position) => {
console.log('has coordinates');
coords['latitude'] = position.coords.latitude
coords['longitude'] = position.coords.longitude
coords['navigatorError'] = null
},
(error) => coords['navigatorError'] = error.message,
{ enableHighAccuracy: true, timeout: 20000, maximumAge: 1000 },
);
console.log('action returning');
return {
type: 'set_location',
payload: coords
};
};
Documentation on async/await can be found here.