[ROKID] How to take screenshots and record the glasses screen

Capturing screenshots and recording the screen directly from your Rokid glasses can be very useful for debugging, documentation, or demos.

ScreenRecording.mp4⁠⁠

1. Prerequisites

Requirements:

• adb installed on your computer and available in your terminal/command prompt
• USB debugging enabled on the glasses
• The glasses connected to your computer via USB

You can verify that ADB sees your device with:

adb devices

You should see a line with a device ID and the device status.

2. Basic Screenshot to Local File

The simplest way to capture a screenshot and save it directly to your computer is:

adb exec-out screencap -p > screen.png

This command:

1. Runs screencap on the device
2. Streams PNG data to your computer
3. Redirects it into screen.png in the current directory

You can change screen.png to any filename and path you prefer.

3. Screenshot via Device Storage

If you prefer to save the screenshot on the device first and then pull it:

adb shell screencap -p /sdcard/screen.png
adb pull /sdcard/screen.png

This will:

1. Create /sdcard/screen.png on the device
2. Copy it to your current directory on the computer

4. Recording the Screen

To record a video of the glasses screen, use screenrecord. Unlike screenshots, screenrecord does not support exec-out, so you must save the recording to the device storage first and then pull it.

1. Start the recording:

   adb shell screenrecord /sdcard/recording.mp4
   

   The recording runs until you press Ctrl+C in the terminal.

2. Pull the recording to your computer:

   adb pull /sdcard/recording.mp4
   

5. Handling Multiple Connected Devices

If more than one Android device is connected (phone, emulator, multiple glasses), adb may show an error like more than one device/emulator.

In that case:

1. List all devices:

   adb devices
   

   You will see device IDs such as emulator-5554, 7f1c864e, or 192.168.0.10:5555.

2. Use the -s flag to target a specific device:

   adb -s <device-id> exec-out screencap -p > screen.png
   

   or, with the two‑step method:

   adb -s <device-id> shell screencap -p /sdcard/screen.png
   adb -s <device-id> pull /sdcard/screen.png
   

   Replace <device-id> with the value from adb devices, for example:

   adb -s 7f1c864e exec-out screencap -p > screen.png
   

   This ensures the screenshot is taken from the correct device.