Mobile App Prerequisites

Before we move to the second coding exercise, make sure you have the following in place.

Tools you need:

• Android Studio (stable channel) installed. The current stable release is listed on the Android Studio releases page.
• Android SDK. Android Studio will guide you through this on first run.
• A device running Android 7.0+. We’ll use API 24 as the minimum for this tutorial.

Silent Authentication works by verifying the user through mobile network context. In practice that means:

• It’s best tested on a real Android phone with a SIM + mobile data.
• The Android emulator usually won’t behave like a real mobile network (and often can’t validate what Silent Auth needs).

Next Steps

Continue to the next module to open GitHub Codespaces and complete the Mobile App Coding Exercise. Once you’ve completed it, confirm everything is working correctly by checking the final statusMessage shown in the app after verification completes. Paste only the statusMessage value (no extra text) to mark this coding exercise as completed.