vncpatch

Patches the RealVNC 4.x Android app to fix bugs and improve usability.

Currently supports VNC Viewer 4.9.1.60165 (May 2024).

For VNC Viewer 3.x, see here for a patch to fix the double-backspace bug.

Features

Renamed package so it can be installed alongside the official one.
Fix bug where taps are frequently ignored on certain devices (e.g., Pixel 9).
Fix bug where rapidly pressing non-lockable-modifier extension keyboard keys would only send half the expected number of key presses (also so pressing arrow keys isn't as painful).
Add long-press key-repeat support to the extension keyboard (so pressing arrow keys isn't as painful).
Add a pin-to-home button to the connection details toolbar (since the dynamic shortcuts only includes the first four connections).
Replace annoying floating toolbar with invisible touch regions (top-left corner is disconnect, top is connection info, bottom is keyboard, bottom-right corner is mouse).
Dark theme.

Install dependencies:
- git
- Java 11+
- zipalign
- apksigner (>= 0.9) (this repo contains a vendored copy)
- apktool (= 2.8.1) (newer versions will probably work, but the patches may need to be updated) (this repo contains a vendored copy)
- wget (only needed if downloading the APK)
Run ./vncpatch.sh (see ./vncpatch.sh -h for options). To modify the patches, you can amend or add new commits to the git repo created at ./src, then run ./vncpatch.sh again.
Uninstall the original app, then install build/signed.apk.