Mobile and Offline Developer Guide

Mobile App Development with Lightning Web Components and LWC Offline
Create Mobile-Ready Components
Use Mobile Device Features in Mobile Apps
Request App Review
Scan Barcodes
Access Device Biometrics
Manage Calendar Events
Access Contacts
Scan Documents
Monitor Geofences
Use Location
LocationService User Experience
Location Basics
Use the LocationService API
LocationService Example
Compatibility and Requirements
Considerations and Limitations
Interact With NFC Tags
Tap to Pay
Offline Considerations and Limitations
Offline Environment Details
Use Salesforce Features While Offline
Development Tools and Processes
Quick Start Tutorials
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Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Location Basics

On the surface, the concept of location is a simple one. Where am I? Where is Salesforce Tower? How do I get to Salesforce Tower from where I am right now? These are all location-based features, and we’ve been using them on mobile devices for many years. As a developer, the concept of location can be more complex.

Location itself can be reduced to basic X,Y coordinates: a latitude and longitude, also known as a geolocation. For example, {37.7898007,-122.3991439} (the location of Salesforce HQ). But knowing the coordinates of Salesforce Tower doesn’t show you where it is on a map, or tell you where you are in relation to it, or how to get there. These are location-based features, but simple location is not enough to build them. It also requires map rendering, geocoding of street addresses, and route calculation, among other things.

LocationService is a simple API, with features inspired by the similar Geolocation API available in web browsers. It provides a straightforward mechanism for getting the current geolocation of the physical device on which it runs. That’s it. For basic map display, combine LocationService with the lightning-map component. For more complex mapping solutions, consider adding third-party libraries and services, such as Google Maps or Leaflet.