expo-location

Learn location access with expo-location.

The expo-location package

To get the user's geographic location you use the expo-location package. This package offers two main functions: current location (taken once) and continuous location (changing over time). With Expo you install it with npx expo install expo-location.

You import the Location namespace from the package: import * as Location from 'expo-location'. Under this namespace you find functions like getCurrentPositionAsync (current location), watchPositionAsync (continuous location) and geocodeAsync (address to coordinate). Location data is sensitive; so asking the user for permission is mandatory.

Import

The expo-location package is imported with import * as Location. This pattern groups all functions of the package under the Location name. Example: import * as Location from 'expo-location'. You then make calls like Location.getCurrentPositionAsync.

The package's functions are asynchronous so they are awaited. The accuracy of location info depends on the device's hardware and permission settings. When GPS is on, accuracy is high; when off, it is low. This package offers a consistent interface on both Android and iOS; you do not need to write platform-specific code.

Exercise Import the package

Complete the empty file. Import the expo-location package with import * as Location. Export it with export { Location }.

Show example solution

import * as Location from 'expo-location';

export { Location };

Test yourself

What does expo-location provide?
- Only camera
- Only network requests
- Only file storage
- Location info
Show answer

Location info — The package provides location info.

Write the import statement

import * as ____ from 'expo-location';

Show answer

import * as Location from 'expo-location';

Match each part to its role

getCurrentPositionAsync

Current location
watchPositionAsync

Continuous location
requestForegroundPermissionsAsync

Asks permission
geocodeAsync

Address to coordinate

Next lesson: Location permission

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