mr-pepe / pengyou

An open-source app to help you learn Chinese

Pengyou is an open-source app that helps you learn Chinese and is available for Android on the Google Play Store.

The data for the app is handled in a separate repository. Follow the instructions there and copy the generated database file into /app/src/main/assets.

The stroke order diagrams make use of the HanziWriter project.

The handwriting recognitions makes use of the Hanzi lookup project.

Evelyn Li did an awesome job designing the app icon and user interface. Check out her Instagram page to see more of her work.

No user data gets collected.

Contributions welcome!

Google Play and the Google Play logo are trademarks of Google Inc.

pengyou's Issues

Incorporate HSK data

Automatically switch languages if no results found

Add indexing in manifest

Flickering when tapping far apart tabs

Break down headword into the words and characters it includes

Make sure that for any character that appears anywhere there is a definition

Parse Pinyin

Clean CEDICT

• Search for ; and split with /
• Paranthesis for fig. and lit.
• Always place (idiom) and such things in front or at end
• References to other Chinese words should always contain pinyin as well
• Substitute "CL:" with "measure word:"
• If a definition is very long, put it to the end (so that more definitions can be seen on the search results screen)

Handle apostrophes

Add copy button to word view

Definitions missing in word view

Last result in list doesn't show definitions

Allow search of v and ü

Headword coloring broken when length of pinyin and headword not equal

Incorporate frequency data

Color headwords

Generate links for all Chinese words appearing in definitions

Add stroke order animations

Show search history

Create table for definitions in word view

Improve frequency data

Allow search of v and ü

Add controls to stroke order animation

• Show strokes one by one
• Go back and forth stroke by stroke
• Show/hide outline
• Disable horizontal paging when quiz is active

Dictionary

Add result count to top of result list

Search crashes

Search in English

Handle variants properly

Add "Delete History" button

Copy button in search result list

Create tree view of decomposition

Stroke order diagram disappears when switching to words containing

Resultviewholder does not wrap pinyin

Incremental search

Handle entries with more than one character

• Stroke order
• Decomposition

Chinese numbers not colored correctly

Handle variants in CEDICT

Stretch search bar

Parse measure words in definitions

Use m-to-m relationship to avoid duplicates of permutations

Introduce settings

• Switch pinyin notation
• Change headword coloring
• Switch between simplified/traditional/both
• Select what kind of background grid to use for stroke order diagrams: Diagonal, cross, none

Handwriting input

Improve GUI

• Improve icons for English / Chinese mode
• Make the search bar not look as weird
• Action bar in search view and word view not same size
• Icon for words containing
• Icons for settings
• Don't use tabs to switch between input methods
• Change modeSwitch layout
• Make stroke order controls look nicer
• Add back button to appbar
• Make sure icons in appbar use right color
• Change stroke order color according to theme
• Put headword and pinyin in table for alignment
• Add info button next to search bar
• Change system bar color
• Make headword and pinyin horizontally scrollable
• Only show stroke order indicator when more than one character
• Change close button in dictionary search view
• Make handwriting button icon change when tapped
• Prettify buttons in handwriting fragment
• Quit quiz mode when quiz is finished
• Color quiz button when in quiz mode
• Back button on lower level settings fragments
• Change back button icon
• Remove boxes around HSK label
• Change splash screen
• Change icons in bottom navigation
• Switch full alternative headword to second line when does not fit one line
• Only show alternative headword when different
• Change description in settings to use parantheses
• Uncolor clear history button
• Color History text
• Only show "Search" in search hint
• Change dictionary icon in bottom navigation
• Back button too big?
• Overhaul light theme colors
• Set dark theme colors
• Separator for search results in dark mode
• New splash screen
• Tone colors
• Overhaul dark theme colors

Parse links to other words in definitions

Don't ship search index with apk

Make permutations lowercase

Switch between pinyin notations

Make headword colors adjustable

Add credits and licences

Double check sort order for English search