Q25 Trackpad Customizer

Android app (Accessibility Service) for Zinwa Q25.

Features

• Per-app trackpad mode: Mouse / Keyboard / Scroll Wheel Mode (True scrolling mode)
• Global default mode + “Apply to all”
• Scroll wheel customization (sensitivity, invert, horizontal)
• Auto switch to Keyboard when focusing text inputs (optional, with per-app override and global settings)
• Hold-key temporary switching - Enable an alternate mode while a key is held (optional, with per-app override and global settings)
• Quick Toggle Activity - Includes an App Shortcut which can be called upon by KeyMapper app to cycle through available modes
  • Select which modes Quick Toggle cycles through (Global + Per-App)
  • Single-Mode Fallback (when only 1 mode is selected)
• Backup & restore settings
• Initial setup helpers (Settings page)
  • Test / Grant Root Access (su -c id) to trigger Magisk/KernelSU prompts and also confirm root works
  • Guided Accessibility setup (Restricted Settings flow)

Download

• You can download the latest version here

Setup / Usage

🚨 Prerequisite: This app requires root! 🚨 The app also requires enabling its Accessibility Service.

1) Install

Install the APK from the Releases page.

2) Enable the Accessibility Service (Restricted Settings flow)

Android will require allowing “restricted settings” before the Accessibility toggle can be enabled.

1. Go to Settings → Accessibility
2. Tap Q25 Trackpad Customizer (it may be grayed out)
   • This will show a "Restricted settings" warning
3. Go to Settings → Apps → Q25 Trackpad Customizer
4. Tap the ⋮ (3 dots) menu (top-right) → Allow restricted settings
5. Enter your PIN/passcode
6. Go back to Settings → Accessibility → Q25 Trackpad Customizer → Enable

Tip: The app includes a step-by-step setup wizard and a button in Settings (Initial setup > Accessibility service setup) that guides you through the above steps.

3) Grant Root Access

Grant root access in your root manager (KernelSU, Magisk, etc).

• The app requests root using: su -c id
• This serves as both a "check" for root access, and also would prompt apps like Magisk to allow root access if not already granted.
• If you don’t see a prompt or you previously denied it, you can re-check anytime:
  • Settings → Initial setup → Test / Grant Root Access

Quick Toggle

Quick Toggle is an Activity + App Shortcut intended for use with apps like KeyMapper.

Mode selection (Global + Per-App)

Choose what Quick Toggle cycles through:

• Mouse
• Keyboard
• Scroll Wheel

You can set this globally, and override it per-app.

• If you pick multiple modes, Quick Toggle cycles through only those modes.
• If only one mode is selected, Quick Toggle cycles between your chosen mode and the current per-app mode.
• If the current per-app mode matches your 1 chosen Quick Toggle, it instead uses your chosen Single-Mode Fallback so it doesn’t “do nothing.”

Single-Mode Fallback (Global Setting; only applies when only 1 mode is selected)

Example: Quick Toggle is set to Keyboard only

• In Mouse/Scroll Wheel mode > Quick Toggle switches to Keyboard
• Already in Keyboard mode > Quick Toggle switches to your selected Fallback mode

Default mode is always part of the cycle

The app’s default/base mode (or system default) is always reachable.

• Example: Default is Keyboard, you select only Mouse for Quick Toggle
  • Quick Toggle effectively toggles between Keyboard > Mouse

Notes

• This app uses an AccessibilityService to monitor the foreground app and focused views.
• Scroll wheel mode maps DPAD keys (keyboard mode) to scroll gestures.

FAQ

Why did scroll wheel mode / per app settings stop working after updating?

You need to re-enable the Accessibility Service after updating:

• Settings > Accessibility > Q25 Trackpad Customizer > Enable

How can I disable the pop ups when it switches modes?

You can disable toasts individually on the Settings page, near the top. Uncheck any toast categories you don’t want.

Why doesn’t Magisk prompt me to allow root?

Magisk typically prompts only when the app actually runs su. Use:

• Settings > Initial setup > Test / Grant Root Access

If you previously denied root and Magisk remembered it, re-enable it in:

• Magisk > Superuser > Q25 Trackpad Customizer > Allow

I don’t see the “⋮ / Allow restricted settings” option in App Info

You likely missed the step where you tap the app entry in Accessibility first (that’s what triggers the restricted warning).
Go back to:

• Settings > Accessibility > Q25 Trackpad Customizer
  Then return to App Info and check again.

License

See LICENSE.

Donations

• If you feel this app has improved your experience with your Q25, consider donating to the WVU Cancer Institute
• You can make a donation here
• You can read more about the WVU Cancer Institute here
• Thank you <3

Attributions

• App icon created by WhoCon from FlatIcon