How to turn your own project into a dependency (three dependency tutorials in Android)

Foreword: There are a lot of information on the Internet. This article is just a record of my own understanding and practice.

There are three ways of dependency in Android:

1. Module dependency (project module)

2. Local dependencies (mainly for local jar packages)

3. Remote dependency

 

 

• Module dependency module

 Step①:

Create a normal project, write the function you want (preferably a function that can be reused), and delete the activity and layout files of the project itself. Find the project's build.gradle

 

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.lihang.mydialog"
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

Change'com.android.application' to:'com.android.library'

The  applicationId "com.lihang.mydialog" Delete this line

Sync Now after finishing these two parts. Refresh the project and you're done

 

Step ②:

Create a new project and rely on the uploaded module. File-->New-->Import Module, the following appears:

Check Import at this time. Also modify the Module name. That's it! ~

 

 

 

• Local dependencies (jar package: only package .class files, not resource files)

  Step①:

Also create a new project, then File-->New-->New Module, select Android Library

 

 Then check build.gradle , application dependencies. In order to test whether it is successful later, create a new class in the module

public class Utils {
    public static String showLog(){
        return "jar--返回的数据";
    }
}

 

Step ②:

Add the following code to your module's build.gradle, which is equal to the android tag

//修改jar名字+将指定jar生成的地方
task makeJar(type:Copy){
    //如果之前存在，则先删除
    delete 'build/libs/demo.jar'
    //设置拷贝的文件
    from('build/intermediates/packaged-classes/debug/')
    //生成jar包后的文件目录位置
    into('build/libs/')
    //include,exclude参数来设置过滤
    include('classes.jar')
    //重命名
    rename('classes.jar','demo.jar')
}

makeJar.dependsOn(build)

 After completing the above steps, click Gradle on the right side of android studio and find your module project Tasks-->other-->makeJar, as shown below

 

After successful packaging, the following figure:

Then in your module's build-->libs-->demo.jar, you can see that this is done.

You can create a new project and copy demo.jar to libs. Then add a reference. Finally, call the utils class just now in the project. The result was successful.

Note again: The packaged jar will not include resource files. If you need resource files, you can package them into aar

 

 

So how to package it into an aar file? , Continue to look at (in fact, aar and module dependencies are the same thing)

Step ③:

Find the module dependency module at the beginning of this article, and after converting a normal project into dependency, directly as shown in the figure below, select Tasks-->build-->assemble of the current module

 

 

 Then build-->outputs-->aar in your project module, as shown below:

 

After the generation is successful, how to use it. In fact, the same as module, File-->New-->New Module, select Import.JAR/.AAR Package

As shown:

After doing this step, add dependencies like normal modules. That's it! ! Can be used normally,

 

 

 

• Remote dependency (projects often use third-party libraries on github)

 How to turn your project into a remote dependency?

Step①:

Complete the step ①  part of the local dependency (jar package: only package the .class file, not the resource file)    . Put the function code you need into the library, and upload the code to github (note that remote dependencies contain resource files). If you want to upload a github tutorial, you can leave a message. The article will continue to be updated

 

like this:

 

Then click release in the red circle. As shown below 

 

After filling in the version number and description. Just click Publish release. 

 

Then log on to https://jitpack.io/  official website. Log in to your github account as shown in the figure, and find the library project you just did:

(In the box are all your github projects, find your library project, then click get it, then congratulations on your success. The new project introduces dependencies, I have personally tested it)

 

 

 

If this article is helpful to you, please visit my github, I hope it will help you:

Shared elements to achieve small to large images

Label the picture, the label follows the picture zoom