Mobile Offline Developer Guide

Offline App Development with Lightning Web Components and LWC Offline
Considerations and Limitations
Offline Considerations
Use Salesforce Features While Offline
Development Tools and Processes
Set Up Your Development Environment
Validate Lightning Web Components for Offline Use
Develop Offline-Ready LWCs with the LWC Offline Test Harness
Prerequisites and Setup Considerations
Download and Install — Android
Download and Install — iOS
Use the Test Harness App
Debug Lightning Web Components
Customize the Offline Experience for the Salesforce Mobile App
Quick Start Tutorials
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Download and Install — Android

Once your mobile development tools are up and running, getting started with Test Harness on Android devices is a breeze.
  1. Download the Test Harness APK file.
  2. Open Android Studio and start an emulator compatible with Test Harness.
    For help with emulators in Android Studio, see Run an app on the Android Emulator (Google).
  3. Using Finder (macOS) or File Explorer (Windows), navigate to your Downloads folder.
  4. Find the Test Harness APK file you downloaded, and drag it onto a running Android emulator.
The Test Harness app is now installed on your emulated device.