Android Studio

Android Studio is the official Integrated Development Environment (IDE) for Android application development, which is based on IntelliJ IDEA. Apart from being a powerful IntelliJ code editor and developer toolset, Android Studio offers many features that increase your productivity in creating Android apps, such as

  • Flexible Gradle based build system
  • Fast and feature-rich emulator
  • A unified environment where you can develop apps for all Android devices
  • Apply changes to push code and resource changes to a running app without restarting the app\
  • Code templates and GitHub integration to help you build common app features and import sample code
  • Full testing framework and features
  • Lint feature to record performance, usability, version compatibility and other issues
  • C++ and NDK support
  • Built-in support for Google Cloud Platform, which makes it easy to integrate Google Cloud Messaging and App Engine

Project Structure

Each project in Android Studio contains one or more modules with source code files and resource files. Module types include:

  • Android Application Module
  • Library Module
  • Google App Engine Module

By default, Android Studio displays your project files in the Android project view, as shown in figure 1. This view is organized by module to provide quick access to your project’s main source files. All build files are visible at the top level in the Gradle Script section and each the application module contains the following folders:

  • Manifest:: Contains the AndroidManifest.xml file.
  • Java:Contains Java source code files, including JUnit test code.
  • Res: Contains all non-code resources, such as XML layouts, UI strings, and bitmap images.

The structure of an Android project on disk is different from this unified representation. To see the actual project file structure, select Project from the Project drop-down menu. You can also customize the appearance of the project file to focus on specific aspects of your app development. For example, selecting the Problems view of your project will return a link to a source file that contains recognized coding and syntax errors, such as an XML element closing tag that isn’t in the layout file.

Window Features:

Instead of using preset perspectives, Android Studio follows your context and automatically displays relevant feature windows as you work. By default, the most commonly used feature windows are pinned to the feature window pane at the edge of the application window.

  • To expand or collapse a feature window, click the feature name in the feature window pane. You can also drag, pin, unpin, install, and drop feature windows.
  • To return to the current default feature window layout, click Window > Restore Default Layout or adjust the default layout by clicking Window > Store Current Layout as Default.
  • To show or hide the entire tool window pane, click the window icon in the lower-left corner of the Android Studio window.
  • To find a specific tool window, hover over the window icon and select that tool window from the menu.

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