Does a final .apk include images not referenced/used?

Issue

Do I need to go through the complete repository and delete Drawables not referenced in the code, or does the apk automatically not include Drawables never used? Thanks in advance.

Solution

By default, no. Your apk will include everything you put in it.

To remove unused code use proguard.

To remove unused resources, you can include this in your build.gradle.

android {
    ...

    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            ....
        }
    }
}

Answered By - Chad Bingham