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README
Apache-2.0

快应用服务框架

快应用是一种新的应用形态,以往的手机端应用主要有两种方式:网页、原生应用;网页无需安装,却体验不是很好;原生应用体验流畅,却需要从应用商店下载安装,难以一步直达用户;快应用的出现,就是希望能够让用户无需下载安装,并且还能流畅的体验应用内容。

为了达到上面的目标,快应用建立一种新的语言开发规范,同时提供一系列的开发套件辅助支持。简单来说,开发者主要利用前端知识与技能,以及对应的 IDE,手机设备就可以做原型的开发。快应用使用前端技术栈开发,原生渲染,同时具备 H5 与原生应用的双重优点,开发者使用的前端技术栈资料多,学习成本低。

快应用服务框架能够使用原生组件渲染快应用程序。

项目结构

项目架构

如图所示,快应用框架架构主要有以下几个部分: 架构图

Framework:JS 应用框架层,主要提供了基础的页面组件、页面路由管理、数据绑定以及原生接口等功能。

JS Engine:负责解释页面标签并生成相应的 DOM 树,同时将渲染操作 RenderAction 发送给 HybridBridge

HybridBridge:接收 RenderAction,调用系统原生功能进行渲染

Platform Services:接入三方服务能力,如推送、支付、微信/微博/qq 账户、统计等

渲染流程

主要渲染流程如下所示:

渲染流程

框架首先加载 manifest.json 读取应用配置信息,然后读取 app.ux 文件读取其中的公共库信息; 接下来会加载需要展示的 page.ux,也就是我们编写的页面,通过对页面组件、样式的计算,生成相应的 DOM 树; 最后将 DOM 树映射成 Android 原生的 View 树,并在 Activity 的 ContentView 中加载,完成整个渲染流程。

代码结构

主要代码结构如下所示:

├── core  //核心功能
│   ├── adapters
│   ├── framework
│   ├── plugins
│   └── runtime
├── debug
│   ├── engine
│   └── shell
├── development
│   └── gradle-plugin
├── external
│   └── public
├── mockup
│   ├── platform
│   └── plugins
└── platform
    ├── platform
    └── plugins

快应用框架代码分包简要说明

core

提供runtime部分代码,即整个框架的核心运作机制,rpk理论上可以通过集成这部分代码独立运行

framework:前端框架与编译器

framework/src:前端框架,输出为一个js文件

runtime:运行时环境

runtime/android:android端运行时环境,输出为android的aar库

runtime/android/runtime:android端核心模块

runtime/android/features:各系统接口的android端实现

runtime/android/widgets:各系统组件的android端实现

plugins/features/*:可公用的各服务类接口,每个的输出为android的aar库

debug

框架调试模块,提供调试辅助功能,此模块代码不参与框架编译、打包。

debug/engine:快应用调试功能的核心逻辑,可以抓取运行时渲染数据并在Chrome浏览器中展示

debug/shell:可编译快应用调试器,用于设备端安装、调试快应用

development

development/gradle-plugin:框架编译插件,负责类注解解析

external

Inspector 以及绘图等依赖 JS/V8 环境的 native 模块编译所需的 JSEnv 头文件

mockup

快应用框架 app 工程模块

mockup/platform/android:快应用框架app项目,输出为 apk 文件

mockup/plugin:快应用框架三方接口(账户,支付,推送等)

platform

框架平台化的相关机制,例如快应用分发、启动,进程管理等相关逻辑

快应用框架编译与安装

快应用框架项目使用 gradle 进行编译。

快应用框架编译

hapjs/mockup/platform/android目录下执行

./gradlew assembleDebug/Release

即可在hapjs/mockup/platform/android/app/build/outputs/apk/目录生成相应的android apk安装文件。

// 生成的文件,以执行 assembleDebug 为例
// 也可以执行 assemblePhoneDebug 只编译手机平台安装文件
├── phone  //手机平台安装文件
│   └── debug
│       ├── app-phone-debug.apk
│       └── output.json
└── tv     //电视平台安装文件
    └── debug
        ├── app-tv-debug.apk
        └── output.json

安装到手机

cd hapjs/mockup/platform/android

adb install -r -d app/build/outputs/apk/phone/debug/phone/debug/app-phone-debug.apk 

调试快应用框架

快应用调试器

为了方便调试程序,您可以使用快应用调试器,这是一个Android应用程序,主要包含以下功能:

  • 扫码安装:配置HTTP服务器地址,下载rpk包,并唤起平台运行rpk包
  • 本地安装:选择手机文件系统中的rpk包,并唤起平台运行rpk包
  • 在线更新:重新发送HTTP请求,更新rpk包,并唤起平台运行rpk包
  • 开始调试:唤起平台运行rpk包,并启动远程调试工具

快应用调试器可以连接到手机系统内的快应用执行环境(需要将系统升级到最新的正式版本),或者您可以单独下载安装快应用平台预览版来提供执行环境。

在快应用调试器的运行平台下拉组件中选择 快应用预览版(org.hapjs.mockup) ,然后安装快应用程序即可调试快应用框架。

编译快应用调试器

快应用调试器使用 gradle 进行编译。

hapjs/debug/shell/android目录下执行

./gradlew assembleDebug/Release

即可生成快应用调试器安装 apk 文件。

定制说明

开发文档

社区流程

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简介

hapjs 是一个快应用标准框架实现,支持快应用的加载、运行、渲染,提供必要API的支持 展开 收起
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