Install Android Studio
Setting up Android Studio takes just a few clicks. (You should have already downloaded Android Studio.)
- Launch the
.exefile you downloaded. - Follow the setup wizard to install Android Studio and any necessary SDK tools.
That's it! The following screens shows each step of the recommended setup procedure.
I launched .exe to start the installation process. The installer responded by presenting the Android Studio Setup dialog box shown in Figure 1.
Figure 1. Set up Android Studio
Clicking Next took me to the following dialog box, which gives you the option to decline installing the Android SDK (included with the installer) and an Android Virtual Device (AVD).
Figure 2. Do you want to install the Android SDK and AVD?
I chose to keep the default settings. After clicking Next, you'll be taken to the license agreement dialog box. Accept the license to continue the installation.
Figure 3. Accept the license agreement to continue installation
The next dialog box invites you to change the installation locations for Android Studio and the Android SDK.
Figure 4. Set the Android Studio and Android SDK installation locations
Change the location or accept the default locations and click Next.
The installer defaults to creating a shortcut for launching this program, or you can choose to decline. I recommend that you create the shortcut, then click the Install button to begin installation.
Figure 5. Create a new shortcut for Android Studio
The resulting dialog box shows the progress of installing Android Studio and the Android SDK. Clicking the Show Details button will let you view detailed information about the installation progress.
The dialog box will inform you when installation has finished. When you click Next, you should see the following:
Figure 6. Leave the Start Android Studio check box checked to run this software
To complete your installation, leave the Start Android Studio box checked and click Finish.
Running Android Studio
Figure 7. Android Studio's start screen
On your first run, you'll be asked to respond to several configuration-oriented dialog boxes. The first dialog box focuses on importing settings from any previously installed version of Android Studio.
Figure 8. Import settings
Figure 9. Validate your Android SDK and development environment setup
When you click Next, the setup wizard invites you to select an installation type for your SDK components. For now I recommend you keep the default standard setting.
Figure 10. Choose an installation type
Figure 11. Review settings
The wizard will download and unzip various components. Click Show Details if you want to see more information about the archives being downloaded and their contents.
Figure 12. The wizard downloads and unzips Android Studio components
Figure 14. Welcome to Android Studio
You'll use this dialog to start up a new Android Studio project, work with an existing project, and more. You can access it anytime by double-clicking the Android Studio shortcut on your desktop.
Starting a new project
Figure 15. Create a new project
Enter your own application name as the application name and your company name as the company domain name. You should then see
Even you can change the project location. Click Next to select your target devices.
Figure 16. Select your target device categories
Android Studio lets you select form factors, or categories of target devices, for every app you create. I would have preferred to keep the default API 15: Android 4.0.3 (IceCreamSandwich) minimum SDK setting (under Phone and Tablet), which is supported by my Amazon Kindle Fire HD tablet. Because Android Studio doesn't currently support this API level (even when you add the 4.0.3 system image via the SDK Manager), I changed this setting to API 14: Android 4.0 (IceCreamSandwich), which is also supported by my tablet.
Click Next, and you will be given the opportunity to choose a template for your app's main activity. For now we'll stick with Empty Activity. Select this template and click Next.
Figure 17. Specify an activity template
Next you'll customize the activity:
Figure 18. Customize your activity
Enter MainActivity is the activity name and activity_main as the layout name, and click Finish to complete this step. Android Studio will respond that it is creating the project, then take you to the project workspace.
The project workspace is organized around a menu bar, a tool bar, a work area, additional components that lead to more windows (such as a Gradle Console window), and a status bar. Also note the Tip of the Day dialog box, which you can disable if you like
When you enter the project workspace, MyApplication is identified as the current project, but you won't immediately see the project details. After a few moments, these details will appear in two new windows.
Figure 19. The project and editor windows
The project window is organized into a tree whose main branches are App and Gradle Scripts. The App branch is further organized into manifests, java, and res subbranches:
- manifests stores
AndroidManifest.xml, which is an XML file that describes the structure of an Android app. This file also records permission settings (where applicable) and other details about the app. - java stores an app's Java source files according to a package hierarchy, which is
ca.javajeff.w2ain this example. - res stores an app's resource files, which are organized into drawable, layout, mipmap, and values subbranches:
- drawable: an initially empty location in which to store an app's artwork
- layout: a location containing an app's layout files; initially,
main.xml(the main activity's layout file) is stored here - mipmap: a location containing various
ic_launcher.pngfiles that store launcher screen icons of different resolutions - values: a location containing colors.xml, dimens.xml,
strings.xml, andstyles.xml
The Gradle Scripts branch identifies various .gradle (such as build.gradle) and .properties (such as local.properties) files that are used by the Gradle-based build system.
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