Stroke Input Method (筆畫輸入法) for Android
June 18, 2025 · View on GitHub
A minimalist Chinese keyboard where you input characters by typing stroke sequences (e.g. 天 is ㇐㇐㇒㇔).
Uses Conway Stroke Data.
Features
- Good character support (over 28k characters) including vernacular Cantonese
- User preference for traditional or simplified characters
- No permissions, tracking, etc.
- Deterministic candidate generation which doesn't learn user input
Releases
License
Copyright 2021–2025 Conway
Licensed under the GNU General Public License v3.0 (GPL-3.0-only).
This is free software with NO WARRANTY etc. etc., see LICENSE.
For detailed copyright information in relation to dependencies, see app/src/main/assets/about.html.
Help (for users)
Strokes
| Key | Stroke |
|---|---|
| ㇐ | horizontal; raise |
| ㇑ | vertical; vertical-with-hook |
| ㇒ | left-slash |
| ㇔ | right-press; dot |
| ㇖ | turn; bend |
Examples
| Character | Stroke sequence |
|---|---|
| 天 | ㇐㇐㇒㇔ |
| 下 | ㇐㇑㇔ |
| 為 | ㇔㇒㇖㇖㇖㇔㇔㇔㇔ |
| 公 | ㇒㇔㇖㇔ |
Miscellaneous
| Function | Action |
|---|---|
| Retract keyboard | Use system Back Button (or Back Gesture) |
| Change language | Horizontally swipe space-bar |
| Change to other keyboard | Long press space-bar |
Assets (for devs)
*.cmd (CMD)
These are Conway-Markdown (CMD) files,
used to compile the HTML files by running cmd --all
whilst in the root directory of this repository.
*.cmdr (CMD Rules)
These are files containing CMD Rules used by the CMD files.
*.html (HTML)
These are the actual About and Help files that get served in the app.
*.txt (Text)
These are data files used by the input method. Taken from Conway Stroke Data (CC-BY-4.0 / Public Domain), see <https://github.com/stroke-input/stroke-input-data>.
StrokeInputFont.ttf
This is the font used for the keyboard. Taken from Stroke Input Font (GPL-3.0-only), see <https://github.com/stroke-input/stroke-input-font>.
webview.css
This is the stylesheet for the HTML files that get served in the app.