luaj-android

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luaj procject for android.

// repository documentation

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# luaj安卓框架
本项目由[luaj](https://github.com/luaj/luaj)的`jse`版本为基础修改而来。语法上与`luaj`并无不一样，主要修改了几处安卓平台上的引用错误。
## 文档
[说明文档](doc/README.md)

## 简单使用
### 引入库

```
compile 'com.reizx:luaj-android:3.0.4'
```
### JAVA调用LUA例子
以下例子都会输出以`luaj-tag`为tag的日志。
#### 执行文件（[demo](app\src\main\java\com\reizx\luaj\view\fragment\HomeFragment.java)）
调用方法：
```
    public void invokeFile() {
        String path = "/sdcard/SimpleExample.lua";
        // copy the script to path
        ResourceUtils.copyFileFromAssets("SimpleExample.lua", path);
        // init global before
        // create an environment to run in
        // Globals globals = JsePlatform.standardGlobals();
        // Use the convenience function on Globals to load a chunk.
        LuaValue chunk = globals.loadfile(path);
        // Use any of the "call()" or "invoke()" functions directly on the chunk.
        chunk.invoke();
    }
```
SimpleExample.lua
```
---
--- 例子执行请执行rlua模块中AndroidTest的SimpleExample测试用例
--- Generated by EmmyLua(https://github.com/EmmyLua)
--- Created by kig.
--- DateTime: 2018/3/6 17:34
---

-- 引入类
LuajLog = luajava.bindClass("com.reizx.luaj.component.LuajLog") --Log打印类

-- 调用类的静态接口
LuajLog:d("hello luaj...1")
LuajLog:d("hello luaj...2")
LuajLog:d("hello luaj...3")
```

#### 执行脚本流
```
    public void invokeStream() {
        String path = "/sdcard/SimpleExample.lua";//请查看"执行文件"中的SimpleExample.lua
        // get the script InputStream
        InputStream in = new ByteArrayInputStream(ResourceUtils.readAssets2String("SimpleExample.lua").getBytes());
        // init global before
        // create an environment to run in
        // Globals globals = JsePlatform.standardGlobals();
        // Use the convenience function on Globals to load a chunk.
        /** Load the content form an input stream as a binary chunk or text file.
         * @param is InputStream containing a lua script or compiled lua"
         * @param chunkname Name that will be used within the chunk as the source.
         * @param mode String containing 'b' or 't' or both to control loading as binary or text or either.
         * @param environment LuaTable to be used as the environment for the loaded function.
         * */
        LuaValue chunk = globals.load(in, "@"+"Simple", "bt", globals);
        // Use any of the "call()" or "invoke()" functions directly on the chunk.
        chunk.invoke();
    }
```

#### 自定义接口
```
    public void invokeCustom(){
        Globals globals = customEvn();

// get the script InputStream
        InputStream in = new ByteArrayInputStream(ResourceUtils.readAssets2String("hyperbolicapp.lua").getBytes());
        LuaValue chunk = globals.load(in, "@"+"hyperbolicapp", "bt", globals);
        // Use any of the "call()" or "invoke()" functions directly on the chunk.
        chunk.invoke();
    }

/**
     * 自定义lua环境，可以自定义API
     * @return
     */
    public Globals customEvn(){
        Globals globals = new Globals();
        globals.load(new JseBaseLib());
        globals.load(new PackageLib());
        globals.load(new Bit32Lib());
        globals.load(new TableLib());
        globals.load(new StringLib());
        globals.load(new CoroutineLib());
        globals.load(new JseMathLib());
        globals.load(new JseIoLib());
        globals.load(new JseOsLib());
        globals.load(new LuajavaLib());
        //todo register library
        globals.load(new hyperbolic());

LoadState.install(globals);
        LuaC.install(globals);
        return globals;
    }
```
hyperbolicapp.lua
```
-- Sample luaj code to try loading and executing the 'hyperbolic' sample library
--
-- The sample library source is in examples/jse/hyperbolic.java.
-- For this sample to work, that source must be compiled, and the class must
-- be on the class path.
--
-- First load the library via require().  This will call the public constructor
-- for the class named 'hyperbolic' if it exists, and then initialize the
-- library by invoking LuaValue.call('hyperbolic') on that instance
require 'hyperbolic'

LuajLog = luajava.bindClass("com.reizx.luaj.component.LuajLog") --Log打印类

-- Test that the table is in the globals, and the functions exist.
-- LuajLog:d('hyperbolic : '..hyperbolic)
-- LuajLog:d('hyperbolic.sinh : '..hyperbolic.sinh)
-- LuajLog:d('hyperbolic.cosh : '..hyperbolic.cosh)

-- Try exercising the functions.
LuajLog:d('sinh(0.5) : '..hyperbolic.sinh(0.5))
LuajLog:d('cosh(0.5) : '..hyperbolic.cosh(0.5))
```

### 修改日志
* 修复`classloader`引用错误。

luaj-android

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