Middor

Middor

Mirror applications for HUD display with horizontal flip.

Khiet Tam Nguyen System

Screenshots

Screenshot of Middor Screenshot of Middor Screenshot of Middor Screenshot of Middor Screenshot of Middor Screenshot of Middor

Description

Middor is a free and open-source Android application for mirroring apps on your device.

With built-in support for horizontal flip and 180° rotation, Middor can be used to:

- Display apps on a HUD
- Project content onto a car windscreen (e.g. Google Maps navigation)
- View mirrored images and videos

Middor only supports devices running Android 14 QPR2 or higher, as it relies on the single app screen sharing feature.

For more details, see Android 14 - App Screen Sharing: https://developer.android.com/about/versions/14/features/app-screen-sharing

Touch controls

To tap, swipe, or use multitouch on the mirror, turn on Enable Touch Controls
in Settings and enable Middor Touch in Android Accessibility settings.
Gestures follow flips and rotations and replay when you lift your fingers.
Touch controls are optional for view-only mirroring.

For usage instructions, see https://github.com/nktnet1/middor/discussions/2

Permissions

- SYSTEM_ALERT_WINDOW: to draw a mirror overlay on top of other apps
- FOREGROUND_SERVICE: to run the mirror service continuously while the overlay is active
- FOREGROUND_SERVICE_MEDIA_PROJECTION: for capturing the screen content of the underlying app
- BIND_ACCESSIBILITY_SERVICE: for the optional Middor Touch service
- POST_NOTIFICATIONS: (optional) to display the mirror service notification with additional actions

Contact

Questions/Feature Requests

Create a Q&A for questions and Ideas for feature requests on GitHub discussions: https://github.com/nktnet1/middor/discussions

Bugs/Issues

Report bugs by creating a GitHub issue describing the problem and how it can be reproduced: https://github.com/nktnet1/middor/issues

Please also include your device model, app version and android version.

Other

For all other inquiries, please reach out to: support@middor.nktnet.org

What’s new (0.2.0)

## Changes

- feat: support user interactions through mirror display
- requires accesibility permissions
- allow touches on the overlay to be passed to the application

Versions

Version Date Size Requires Android Download
0.2.0 current
e5938503b3ef4e59…
2026-10-25 2.4 MB API 34
0.1.7
c7ead03f26a76ef8…
2026-02-07 2.6 MB API 34
0.1.6
4f5f31b9cf4b33e2…
2026-01-28 2.6 MB API 34

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Display over other appsDraw content on top of other apps.
  • NotificationsShow notifications.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_MEDIA_PROJECTION
  • middor.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Comments