How to change the Android app package name when assembling with Gradle?

Question

Is it possible to change the package name of an Android application using Gradle?

I need to compile two copies of the same app, having a unique package name (so I c

Answer 1

I did not want to use Flavors, so I found a way to do so with buildTypes. I did this by changing my app/build.gradle file as follows:

defaultConfig {
        applicationId "com" // See buildTypes.type.applicationIdSuffix
        ...
    }

    ...

    buildTypes {
        debug {
            applicationIdSuffix ".domain.name.debug"
            ...
        }
        releaseStaging {
            applicationIdSuffix ".compagny.staging"
            ...
        }
        release {
            applicationIdSuffix ".domain.name"
            ...
        }
    }

This allows me to have 3 apps next to each other on my devices.

I hope this helps others.