And now that I have given a high level overview of these different files in the overall project. And then there is a folder called res, which we will now expand and show that this includes a lot of sub directories containing various resources for your app. Then there is a adle for the individual app inside a project.įor example, this adle can include dependencies for the individual application which may be different from the other apps in your project. This includes Java or Kotlin sources as well as test definitions. This includes a lot of metadata about your application, while the Java directory is where you place the sources of your application. Zooming in on the app folder, this in turn contains a number of different files and directories. Then there is an idea directory, which includes Android Studio specific configs, and then an app folder, which contains definitions for an app in your project.
These will include properties which are applicable to all the apps within your project. For now though, let's just stick with a single app for a smartphone and within your project folder, you will have a project level adle file. So for example, you may have one variant of your app for phones, and then another one for a wearable device. One common use case is to have a top level project and individual apps for different families of devices. So when you create an Android project, this is typically a container for a number of different apps. Let us begin though at the project level. In this video, we focus on the structure of an Android application in order to understand the various pieces which need to come together to build such an app and what purpose each of them serves. One of the challenges of Android application development, at least at first, is the fact that an Android project contains many different files scattered across several folders.
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