Simulate USB mouse pointer input on Android phone?

Question

Is it possible to simulate USB mouse movement and click inputs on an Android phone (or on the emulator), e.g. using USB debugging? I want to test if everything in my app also works when using a mouse, but I don't have a mouse I can connect to my Android phone.

Answer 1

You can do this with ADB by sending the events you want to the device. Here if you want to send a click event from the mouse, you can do this:

adb shell input mouse tap <x> <y>

Here's the docs for adb shell input:

$ adb shell input --help
Usage: input [<source>] [-d DISPLAY_ID] <command> [<arg>...]

The sources are:
    dpad
    keyboard
    mouse
    touchpad
    gamepad
    touchnavigation
    joystick
    touchscreen
    stylus
    trackball

-d: specify the display ID.
    (Default: -1 for key event, 0 for motion event if not specified.)
The commands and default sources are:
    text <string> (Default: touchscreen)
    keyevent [--longpress] <key code number or name> ... (Default: keyboard)
    tap <x> <y> (Default: touchscreen)
    swipe <x1> <y1> <x2> <y2> [duration(ms)] (Default: touchscreen)
    draganddrop <x1> <y1> <x2> <y2> [duration(ms)] (Default: touchscreen)
    press (Default: trackball)
    roll <dx> <dy> (Default: trackball)
    event <DOWN|UP|MOVE> <x> <y> (Default: touchscreen)

KeyEvent codes: https://developer.android.com/reference/android/view/KeyEvent?hl=en#constants