android-gradle Shrink Code and Resources Remove unused alternative resources
Example
All libraries come with resources that are not necessary useful to your application. For example Google Play Services comes with translations for languages your own application don’t even support.
You can configure the build.gradle file to specify which resource you want to keep.
For example:
defaultConfig {
// ...
resConfigs "en", "de", "it"
resConfigs "nodpi", "xhdpi", "xxhdpi", "xxxhdpi"
}
