Key Concepts

Review core concepts you need to learn to master this subject

Package Name

Android SDK Version

App Module

Android Manifest

Gradle Build File

Layout Editor

Android Simulator

Android Logcat

Package Name

The package name is a unique name to identify a specific app. Generally, the package name of an app is in the format domain.company.application, but it’s completely up to the app’s developer to choose the name. The domain portion is the domain extension, like com or org, used by the developer of the app. The company portion is usually the name of the developer’s company or product. The final application portion usually describes the app itself.