OpenHeInput-iOS

'He' is Chinese word 和's PinYin(Sound), it means 'and' or 'with'.

'HeInput'('和码' in Chinese) is a name of famous Chinese input mathod.

OpenHeInput-iOS is open source HeInput project for iOS (iPhone/iPad) using Objective C.

This application is based on iOS 8.0+ App Extension custom keyboard.

Now it is full functional Chinese Input application, can be deployed to iPhone/iPad.

This application is also available in the AppStore:
https://itunes.apple.com/ca/app/id417876708?mt=8

Input features include:

1. 21,000+ Chinese words;
2. 184,000+ Chinese phrases;
3. Chinese Simplified and Traditional option;
4. Search code with PinYin;
5. Convenient switch between HeInput/PinYin/English/Number input.

Setting steps:

1. System requirement: iOS 8.0+;
2. Settings > General > Keyboard > Keyboards > Add a New Keyboard;
3. Select "OpenHeInput".

输入法设置：

1. 系统要求: iOS 8.0+；
2. 设置 > 通用 > 键盘 > 键盘 > 添加新键盘；
3. 选择 "OpenHeInput"。

Application Structure

Created with XCode 7.2 and iOS 9.2.

Workspace Name: HeIOS-Workspace, include 3 modules:

1. Static Library: HeLibrary;
2. Static Library: HeInputLibrary;
3. iOS Application: OpenHeInput.

The main parts of code are:

1. Hekeyboard_ViewController which is inherited from UIInputViewController;
2. Input_DataServer which provide input data;
   1. Input_DataServer includes EngineCollection;
   2. EngineCollection includes HeMaEngine, PinYinEngine, HeEnglishEngine, etc;
   3. Each Engine access SQLite database;

Database Structure

Include a SQLite database: hema_db.sqlite, it includes tables:

create table HanZi
(
--_id INTEGER PRIMARY KEY,
HanZi text,
M1 numeric,
M2 numeric,
M3 numeric,
M4 numeric,
GBOrder numeric,
B5Order numeric
);

create table CiZu
(
--_id INTEGER PRIMARY KEY,
CiZu text,
M1 numeric,
M2 numeric,
M3 numeric,
M4 numeric,
HeMaOrder numeric,
JianFan numeric
);

create table English_Word
(
--_id INTEGER PRIMARY KEY,
word text,
HeMaOrder numeric
);

create table PinYin_Number
(
--_id INTEGER PRIMARY KEY,
PinYin text,
number numeric
);

create table PinYin_HanZi
(
--_id INTEGER PRIMARY KEY,
PinYin text,
HanZiString text
);

create table HanZi_PinYin
(
--_id INTEGER PRIMARY KEY,
HanZi text,
PinYin text,
ShengDiao numeric
);

ToDo list in short

1. Convienent function for user adding words and phrases;
2. Function for adding users favorite phrases collection;
3. Keyboard skin;
4. Convienent way to input emoji;

HeInput related information:

http://www.hezi.net/He/UserGuide_Concise/en-us/Set/HeChinese_Guide_Concise.htm