How to make a .jar out from an Android Studio project

Question

I'm using AndroidStudio and I have this project as shown:

What is inside the blue circle is myLib. myLib also needs to use an external lib that is inside the red circle, and an apache package (green circle).

So I want to make this whole thing become a single .jar, so I can use it in another projects.

A step-by-step guide would be really appreciated, I'm a beginner in the developer world.

Thanks!

Answer 1

• Open build.gradle for library project

• Write two tasks in build.gradle -- deleteJar and createJar and add rule createJar.dependsOn(deleteJar, build)

The code from above:

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)

• Expand gradle panel from right and open all tasks under yourlibrary->others. You will see two new tasks there -- createJar and deleteJar

• Double click on createJar

• Once the task run successfully, get your generated jar from path mentioned in createJar task i.e. libs/xxxx.jar

• copy the newly generated jar into your required project's lib folder-->right click-->select "add as library"