Android Oct 11, 2026
4 min read
Test fingerprint login in the Android emulator from the command line
The Android emulator's fingerprint sensor is a console command: adb emu finger touch 1. Getting to the point where that command does anything takes a PIN, a trip through the enrollment wizard and a wait for the sensor to start listening. All of it can be scripted, including a screenshot of a prompt that adb screencap returns as a black frame.