Short Video Controller

Turn the buttons on your headset, volume rocker and Bluetooth remote into scrolling, media controls and system actions.

Key Converter is a per-app key mapping tool. A mapping is event source + trigger -> output: any key can become a swipe, a tap, a media command or a system action in the apps you choose, while unmapped keys keep their native behavior.

WHAT YOU CAN DO

- Short videos and reading: scroll with the volume keys or headset buttons; double press to skip two pages, triple press for three.

- Music: single press still adjusts the real volume, double press skips tracks, triple press plays or pauses.

- Bluetooth remotes, gamepads and keyboards: map D-pad, OK and Enter keys to swipes and taps.

- Shortcuts: Back, Home, Recents, notification shade, quick settings, lock screen, screenshot, split screen, and tap, double tap or long press at any screen position.

SOURCES AND TRIGGERS

Map volume up/down, play/pause, previous, next, stop, fast forward, rewind, the headset hook key, or any external key captured with "Learn a new key". Each source supports single, double and triple press; the multi-press window is adjustable from 150 to 800 ms.

OUTPUTS

- 12 touch gestures: scroll up/down, swipe left/right, tap, double tap, long press, scroll up x2/x3, and tap, double tap or long press at custom coordinates.

- 6 media keys: play/pause, previous, next, stop, fast forward, rewind.

- Keys: D-pad up/down/left/right, DPAD center, headset hook.

- Volume: up, down, or set to a percentage.

- 8 system actions: Back, Home, Recents, notification shade, quick settings, lock screen, screenshot, split screen.

GROUPS AND TEMPLATES

Keep several groups and switch anytime; each carries its own gesture settings and scope, so they never interfere. Create, rename, duplicate or delete groups, or start from 6 built-in templates (Short Videos, Music Playback, Reading, all-key variants and a Remote example); a template becomes a normal, fully editable group.

SCOPE

Enable "Only work in selected apps" to intercept keys only in the apps you check; everywhere else Android behaves as before. Exempt apps (music or calling) are never intercepted, and the main switch or the notification pauses everything.

GET STARTED

1. Open the app and turn on Key Conversion.

2. Follow the start steps to enable the accessibility service.

3. Allow notifications for the running status and quick switch.

4. Apply a template or add your own mappings.

Bluetooth permission is optional (it lists connected audio devices); ignoring battery optimization is optional and only affects background stability.

WHY THE ACCESSIBILITY SERVICE IS REQUIRED

The service reads the keys you press and performs the gestures or system actions you configured. It only receives key events and window-change events (to tell which app is in the foreground); it does not read screen content, does not collect what you type, and key events are never uploaded.

PRIVACY

- Mapping rules and key events stay on your device and are never uploaded.

- Anonymous crash reports and usage statistics (device model, app version, feature usage) help improve stability; turn them off in Settings > Privacy and collection stops immediately.

- No ads, no account required.

COMPATIBILITY AND LIMITATIONS

- Android 7.0 and above.

- Media keys are only delivered while the app is in a playing state, so a short placeholder audio clip is played to declare it; this costs a little battery.

- Whether single, double and triple presses can all be told apart depends on your headset and system.

- On some customized ROMs (MIUI/HyperOS, for example) volume keys may not reach the accessibility service while the screen is fully off; the app includes an always-on display guide.

- If the service shows as enabled but nothing happens, turn it off and on again.