LeanType Handwriting Plugin

This is a dynamic plugin APK for LeanType keyboard that enables handwriting input support using Google ML Kit Digital Ink Recognition.

Important

• Do NOT Install: Do not install this APK as a standalone application on your device. It must only be loaded through LeanType settings.
• Compatibility: This plugin works only with LeanType StandardFull.
• Offline Usage: Handwriting recognition runs completely offline on your device. Internet connectivity is only required once when initially downloading language recognition models.

How it works

LeanType keyboard is a free and open-source (FOSS) project licensed under GPLv3. To comply with FOSS guidelines and keep the core keyboard codebase free of proprietary dependencies, this plugin isolates the Google ML Kit SDK into a separate APK.

At runtime, LeanType loads this plugin dynamically via DexClassLoader when imported by the user in settings.

Building the APK

To build the APK, run the following Gradle task:

./gradlew assembleRelease

The compiled APK will be generated at: app/build/outputs/apk/release/app-release-unsigned.apk (or signed if you configure signing).

How to Use

1. Copy or download the .apk file to your Android device storage (do not install it).
2. Open LeanType keyboard settings.
3. Navigate to Libraries > Load handwriting plugin.
4. Select the .apk file using the file picker.
5. Download your required language model(s) when prompted (requires internet access for initial download; recognition afterwards is offline).