How to Create a .jar File from an Android Studio Project?

Creating a .jar File from an Android Studio Project

In Android development, it can be useful to package your code into a single .jar file for easy distribution and use in other projects. This article will provide a step-by-step guide to creating a .jar file from an Android Studio project.

Prerequisites:

• Android Studio installed
• An existing Android Studio project

Step 1: Modify build.gradle

Open the build.gradle file for your library project. Add two new tasks: deleteJar and createJar.

task deleteJar(type: Delete) {
    delete 'libs/jars/logmanagementlib.jar'
}

task createJar(type: Copy) {
    from('build/intermediates/bundles/release/')
    into('libs/jars/')
    include('classes.jar')
    rename('classes.jar', 'logmanagementlib.jar')
}

createJar.dependsOn(deleteJar, build)

Step 2: Run createJar Task

Expand the Gradle panel on the right side of Android Studio. Under yourlibrary -> others, you will find the createJar task.

Double-click on the createJar task to run it. This task will generate a new .jar file.

Step 3: Locate the Generated .jar File

Once the createJar task completes, locate the generated .jar file in the following path:

libs/jars/*.jar

Step 4: Adding the .jar to Another Project

To use the .jar file in another project, copy it into the lib folder of your destination project.

Step 5: Importing the .jar as a Library

Right-click on the lib folder and select "Add as library." This will import the .jar file as a dependent library for your project.

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