dvcrn Android Automation
Control and automate Android devices using ADB, uiautomator, and screencap.
Connecting Devices
USB Connection
- Enable Developer Options and USB Debugging on the device.
- Connect via USB and verify with
adb devices.
Wireless Connection (Android 11+)
- Enable Wireless Debugging in Developer Options.
- Pairing: Find the IP, port, and pairing code in the "Pair device with pairing code" popup.
adb pair <ip>:<pairing_port> <pairing_code> - Connecting: Use the IP and port shown on the main Wireless Debugging screen.
adb connect <ip>:<connection_port> - Verify with
adb devices.
Common Workflows
Launching an App
Use the monkey tool to launch apps by package name:
adb shell monkey -p <package_name> -c android.intent.category.LAUNCHER 1
Analyzing the UI
Dump and pull the UI hierarchy to find coordinates:
adb shell uiautomator dump /sdcard/view.xml && adb pull /sdcard/view.xml ./view.xml
Then grep for text or resource IDs to find bounds="[x1,y1][x2,y2]".
Interacting with Elements
- Tap:
adb shell input tap <x> <y> - Text:
adb shell input text "<text>"(Note: Use%\sfor spaces in some environments or handle quoting carefully) - Keyevent:
adb shell input keyevent <keycode>(Home: 3, Back: 4, Power: 26, Search: 84, Enter: 66) - Swipe:
adb shell input swipe <x1> <y1> <x2> <y2> <duration_ms>
Visual Verification
Take a screenshot to verify the state:
adb shell screencap -p /sdcard/screen.png && adb pull /sdcard/screen.png ./screen.png
Tips
- Search: Use
input keyevent 84to trigger search in many apps. - Wait: Use
sleep <seconds>between commands to allow the UI to update. - Coordinates: Calculate the center of
[x1,y1][x2,y2]for reliable taps.