Mirror the touch/key/button events of one device onto one or more other devices in real-time

ADB Event Mirror

Consume the output of getevent from one device and redirect it to one or more devices as individual sendevent commands. This allows you to mirror the interaction of one device on another.

The script makes no attempt at normalizing resolution, density, orientation, or layout differences. It works best with emulators which have been created with the exact same configuration.

Usage

$ adb devices
List of devices attached
emulator-5554	device
emulator-5556	device

$ adb -s emulator-5554 shell getevent | /path/to/adb-event-mirror.main.kts emulator-5556
ready!

EVENT /dev/input/event1 3 57 0
EVENT /dev/input/event1 3 48 7
EVENT /dev/input/event1 3 58 129
EVENT /dev/input/event1 3 53 25812
EVENT /dev/input/event1 3 54 31666
EVENT /dev/input/event1 0 0 0
EVENT /dev/input/event1 3 58 0
EVENT /dev/input/event1 3 57 4294967295
EVENT /dev/input/event1 0 0 0
 ⋮

In order for the script to work you must have both kotlin and adb available on your shell path.

Since the script reads events from stdin, you can also record events and replay them later.

$ adb shell getevent > clear_recents.txt

$ cat clear_recents.txt | /path/to/adb-event-mirror.main.kts emulator-5554
ready!

EVENT /dev/input/event1 3 57 0
 ⋮

Install

Mac OS

$ brew install JakeWharton/repo/adb-event-mirror

Other

Download adb-event-mirror-main.kts from latest release. On MacOS, Linux, and Windows Linux subsystem you can chmod +x and execute the file directly. On regular Windows run kotlin adb-event-mirror.main.kts.

License

Copyright 2020 Jake Wharton

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.