在多个Android Studio项目中重用相同的代码 [英] Reusing the same code across multiple Android Studio projects

问题描述

我有一些代码想在多个不同的项目中使用.假设这是一些电子商务代码，用于处理付款和购物车之类的事情.

I have some code I'd like to use across multiple different projects. Let's say it's some e-commerce code that handles things like payments and shopping carts.

在不同项目中复制粘贴所有内容似乎是低效率且危险的.而且，如果我在核心电子商务模块中添加了一项功能或修复了一个错误，我希望这一更改也能反映在其他使用此功能的项目中.

It seems inefficient and dangerous to copy-paste everything across different projects. And if I add one feature or fix one bug in the core e-commerce module, I'd like that change to be reflected in other projects using it too.

我还想重用一些活动，片段和适配器.

I would also like to re-use some of the Activities, Fragments, Adapters too.

对此有什么好的方法?

推荐答案

当我们有一个库项目需要与本地计算机上的每个项目共享时，我们可以使用Maven.

When we have a library project that needs to be shared to every project on a local computer, we can make use of Maven.

A.这是您将在图书馆中执行该项目的步骤:

A. Here the step in your library that we will you for the project:

1. 从Android Studio创建一个库项目.

1. Make a library project from Android Studio.

将Gradle Android Maven插件添加到 root build.gradle

Add Gradle Android Maven plugin to root build.gradle

buildscript {
  repositories {
    mavenCentral()
  }

  dependencies {
    classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
  }
}

在库build.gradle中为步骤1添加Apply插件. (不是root build.gradle):

Add apply plugin for step 1 in your library build.gradle. (NOT root build.gradle):

apply plugin: 'com.android.library'
apply plugin: 'com.github.dcendents.android-maven'

在apply插件之后添加以下内容，此行可在添加到项目时确定您的库:

Add the following after the apply plugin, this line to determine your library when adding to project:

group = 'com.yourpackage.yourlibrary'
version = '1.0'

在您的settings.gradle中添加以下代码:

Add the following code in your settings.gradle:

rootProject.name = 'yourlibrary' 

然后使用以下命令将其发布到本地专家:

Then publish it to your local maven with:

./gradlew install

或者您可以在Android Studio中使用gradle选项.

Or you can use gradle option in Android Studio.

您的库将安装在$ HOME/.m2/repository中.请记住，要使用该库，您需要像这样添加:

Your library will be installed in $HOME/.m2/repository. Remember that to use the library you need to add like this:

  Groupid:artifactid:versionid

Artifactid将是您的库的软件包名称.

Artifactid will be package name of your library.

B.这是您的项目中使用库的步骤:

1. 在您的root build.gradle中添加以下代码:

1. Add the following code in your root build.gradle:

  mavenLocal() // for local maven.

这是为了获取我们在步骤A中安装的本地库Maven

This for getting the local library maven that we have installed in step A

1. 然后在您的 app 项目中，渐变，为库添加编译:

1. Then in your app project.gradle, add compile for the library:

compile 'com.yourpackage.yourlibrary:yourlibrary:1.0'

了解更多:

• Gradle:如何将Android库发布到本地存储库
• https://github.com/dcendents/android-maven-gradle-plugin
• https://inthecheesefactory.com/blog/how-to-upload-library-to-jcenter-maven-central-as-dependency/en

• Gradle: How to publish a Android library to local repository
• https://github.com/dcendents/android-maven-gradle-plugin
• https://inthecheesefactory.com/blog/how-to-upload-library-to-jcenter-maven-central-as-dependency/en

这篇关于在多个Android Studio项目中重用相同的代码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！