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Jetpack MVVM最佳实践 - 重构慕课网课程《Jetpack开发短视频应用实战》

Java 96.54% PLpgSQL 3.46%

jetpack-mvvm-ppjoke's Introduction

Jetpack-MVVM-PPJoke

Jetpack MVVM最佳实践 开发短视频应用 客户端 使用 KunMinX的开源项目中架构** 重构此课程代码

与项目配合的后端代码点这里

Jetpack架构原则(摘自谷歌官方文档)

分离关注点

要遵循的最重要的原则是分离关注点。一种常见的错误是在一个 Activity 或 Fragment 中编写所有代码。这些基于界面的类应仅包含处理界面和操作系统交互的逻辑。您应使这些类尽可能保持精简，这样可以避免许多与生命周期相关的问题。

通过模型驱动界面

另一个重要原则是您应该通过模型驱动界面（最好是持久性模型）。模型是负责处理应用数据的组件。它们独立于应用中的 View 对象和应用组件，因此不受应用的生命周期以及相关的关注点的影响。

推荐应用架构

image-20190923145249042

请注意，每个组件仅依赖于其下一级的组件。例如，Activity 和 Fragment 仅依赖于视图模型。存储区是唯一依赖于其他多个类的类；在本例中，存储区依赖于持久性数据模型和远程后端数据源

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