Kanji Dojo

Learn & practice writing Japanese characters

Features

• Study kana (both Hiragana and Katakana) and kanji
• Practice by following JLPT levels or school grades
• Create your own list to study, more than 6000 characters in total are available
• Works offline

There is separate repository for dictionaries parser and data here: Kanji-Dojo-Data

Screenshots

Downloads

Android

Or get the latest APK from the Releases Section.

Desktop

To run the app install Java 17 or higher. Download jar from Github Releases for your platform, open it with double click or use command java -jar <filename>.jar

Version comparison

Feature	Fdroid	Google Play	Desktop
Analytics	-	Firebase, enabled by default	-
Other	-	Play services in app review	-

Contributing

• Pull-Requests are welcome!
• Before making PR create and discuss the issue
• Use proper code formatting

Project details

Used libraries: Compose Multiplatform, Kotlin Coroutines, Koin, SqlDelight

Most parts of the app are implemented in the core multiplatform module. The app module only contains some specific parts for the Fdroid and Google Play versions (flavors)

Under the main package path there are 2 different packages:

• core - contains app's general logic for features like repositories, databases, app state managers and handlers
• presentation - contains UI, navigation logic, screen specific logic and use cases

Typically a feature under core package is placed in a separate package and consist of an interface and implementation.

The presentation package contains common UI and screen infrastructure. A single screen contains:

• <ScreenName>Contract - an interface with screen's view model and screen state data
• <ScreenName>ViewModel - handles screen's logic
• <ScreenName><Action>UseCase - components that handle some specific action, invoked by view model
• <ScreenName>Screen composable that handles navigation and communication between UI and view model
• <ScreenName>UI - composable function that represents UI, it depends only on data so it can be covered by previews
• <ScreenName>Module - a koin module that defines how to provide all screen specific components.
  Note: View models should be additionally registered in androidViewModelModule since on android they're additionally wrapped by a platform specific component
• (Optional) Content interface for screens that can be replaced in flavors, like SettingsScreenContract.Content

There is a single Koin's module for all features under core package, but there are also separate modules for a platform (platformComponentsModule) and flavor (flavorModule) specific features. All screens have their own koin modules

Credits

• KanjiVG
  Provides writing strokes, radicals information
  License: Creative Commons Attribution-Share Alike 3.0
  Link: https://kanjivg.tagaini.net/
• Kanji Dic
  Provides characters info, such as meanings, readings and classifications
  License: Creative Commons Attribution-Share Alike 3.0
  Link: http://www.edrdg.org/wiki/index.php/KANJIDIC_Project
• Tanos by Jonathan Waller
  Provides JLPT classification for kanji
  License: Creative Commons BY
  Link: http://www.tanos.co.uk/jlpt/
• JMDict
  Japanese-Multilingual dictionary, provides expressions
  License: Creative Commons Attribution-Share Alike 4.0
  Link: https://www.edrdg.org/jmdict/j_jmdict.html
• JmdictFurigana
  Open-source furigana resource to complement the EDICT/Jmdict and ENAMDICT/Jmnedict dictionary files
  License: Creative Commons Attribution-Share Alike 4.0
  Link: https://github.com/Doublevil/JmdictFurigana
• Frequency list by Leeds university
  Words ranking by frequency of usage in internet
  License: Creative Commons BY
  Link: http://corpus.leeds.ac.uk/list.html

License

(c) 2022-2023 Yaroslav Shuliak

This is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this app. If not, see https://www.gnu.org/licenses/.