Created
December 27, 2019 18:34
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| import React, { useEffect, useState } from 'react'; | |
| import { View, StyleSheet, Text, PermissionsAndroid } from 'react-native'; | |
| import Geolocation from 'react-native-geolocation-service'; | |
| const styles = StyleSheet.create({ | |
| container: { | |
| flex: 1, | |
| backgroundColor: 'lightgreen', | |
| }, | |
| text: { | |
| color: 'orange', | |
| fontSize: 40, | |
| }, | |
| }); | |
| export default function App() { | |
| const [hasLocationPermission, setHasLocationPermission] = useState(false); | |
| const [userPosition, setUserPosition] = useState(false); | |
| async function verifyLocationPermission() { | |
| try { | |
| const granted = await PermissionsAndroid.request( | |
| PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION | |
| ); | |
| if (granted === PermissionsAndroid.RESULTS.GRANTED) { | |
| console.log('permissão concedida'); | |
| setHasLocationPermission(true); | |
| } else { | |
| console.error('permissão negada'); | |
| setHasLocationPermission(false); | |
| } | |
| } catch (err) { | |
| console.warn(err); | |
| } | |
| } | |
| useEffect(() => { | |
| verifyLocationPermission(); | |
| if (hasLocationPermission) { | |
| Geolocation.getCurrentPosition( | |
| position => { | |
| setUserPosition({ | |
| latitude: position.coords.latitude, | |
| longitude: position.coords.longitude, | |
| }); | |
| }, | |
| error => { | |
| console.log(error.code, error.message); | |
| } | |
| ); | |
| } | |
| }, [hasLocationPermission]); | |
| return ( | |
| <View style={styles.container}> | |
| <Text>Latitude: {userPosition.latitude}</Text> | |
| <Text>Longitude: {userPosition.longitude}</Text> | |
| </View> | |
| ); | |
| } |
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