To open tool windows, the keyboard shortcuts can be used. The keyboard shortcuts can also be used to access many IDE features. To get more screen space, we can organize the main window by moving or hiding toolbars and tool windows. Status bar: The status of a project, IDE itself, any messages or warnings are displayed.Tool windows: Access specific tasks like search, project management, version control, and more, are facilitated which can be expanded or and collapsed.Tool window bar: Provide buttons to expand and collapse individual tool windows.The Layout Editor is displayed by the editor while viewing a layout file. The editor can change based on the current file type. Editor Window: Space is provided to create and modify code.Navigation bar: A compact view of the structure visible in the Project window is provided and helps in navigating a project and open files for editing.Toolbar: A wide range of actions is provided including running apps and launching Android tools.The logical areas present in the Android Studio main window are: Select the Project from the Project dropdown to see the actual file structure of a project.

res: In this folder, all non-code resources, UI strings, XML layouts, and bitmap images are present.java: In this folder, the source code of Java files, including the JUnit test code is present.manifests: In this folder, the AndroidManifest.xml file is present.The app module holds the following folders: To the top-level under Gradle Scripts, these build files are visible. To provide quick access to a project’s key source files, this view is formed by modules. The project files are displayed in the Android project view, in the Android Studio, by default. One or more modules of the same or different types are present in an Android Studio project with resource files and source code files. Again in October 2008, the first Android mobile was publicly released. Later, on November 12, 2007, the software development kit (SDK) was released. On November 5, 2007, Google released the beta version of Android OS. started the development of the Android operating system. Build-in supports for Google Cloud Platform, which makes it easy to integrate Google Cloud Messaging and App Engine.Extensive testing tools and frameworks.Changes can be applied to the resource code of the running app without restarting the app.A consolidated environment to develop apps for all Android devices.

Fast and feature-rich emulator for app testing.

Android studio 2.2.3 tutorial