Chapter 2 Setting Up for Development

Transcription

1 Introduction to Android Application Development, Android Essentials, Fifth Edition Chapter 2 Setting Up for Development

2 Chapter 2 Overview Learn how to set up our Android development environment Look at many of the tools provided with the Android SDK Review the Android SDK License Agreement Learn about many important SDK packages Look at the sample applications available with the SDK

3 Configuring Your Development Environment Android SDK compatible with Windows, Macintosh, or Linux systems Installation requirements for using this book: Java Development Kit (JDK), Version 7 ownloads/index.html Android Studio (includes the Android SDK)

4 Included with Android Studio Android Studio SDK tools Platform tools The latest Android platform The latest Android system image for the emulator

5 Alternative Compatible Java IDE IntelliJ IDEA Community Edition Ultimate Edition

6 Alternative Configurations (Cont d) When using other IDEs: Command-line tools Debugging Testing

7 Basic Installation Process 1. Download and install the appropriate JDK. 2. Download and install or unzip the appropriate Android Studio package for your Operating System. 3. Launch Android Studio and use the Android SDK Manager to download and install specific Android platform versions and other components. 4. Install appropriate USB drivers for device debugging, if necessary. 5. Configure your device(s) for debugging. 6. Start developing.

8 Basic Installation Process

9 Configuring Your Operating System for Device Debugging To install and debug on real devices: Configure OS to access device via USB Mac OS May work without any configuration Windows Requires appropriate USB driver Linux Requires additional steps

10 Configuring Your OS for Device Debugging (Cont d)

11 Configuring Android Hardware for Debugging Devices with Android 4.2+ have debugging disabled by default. This requires enabling Developer Options. 1. From the Home screen, choose All Apps Settings About Phone (or About Tablet). 2. Scroll down to Build Number. 3. Press Build Number seven times to unlock Developer Options.

12 Configuring Android Hardware for Debugging (Cont d) To install our own applications, configure our device to install from Unknown sources. 1. From Home All Apps Settings Security. 2. Enable (check) Unknown sources. Skipping this step prevents us from installing our apps to our own device.

13 Configuring Android Hardware for Debugging (Cont d)

14 Configuring Android Hardware for Debugging (Cont d) Enable some Developer Options settings. From Home All Apps Settings Developer options Then enable USB debugging.

15 Configuring Android Hardware for Debugging (Cont d)

16 Upgrading Android Studio and the Android SDK To stay up-to-date with the latest advancements: Upgrade from time to time Updates include: New, updated, or removed features Package name changes Updated tools Essential documents Overview of Changes API Diff Report Release Notes See

17 Problems with Android Studio and the Android SDK There may be bugs! Find open issues and their status at the Android project s Issue Tracker website. Submit new issues for review. Issue tracker website: To report bugs or defects for Android Dev team: Learn more about the bug-fixing process:

18 Exploring the Android SDK Android SDK major components: Android SDK Platform by version Platform tools SDK Build Tools System images Google APIs Sources for Android SDK Extras Sample applications

19 The Android SDK License Agreement Before downloading the SDK, you must agree to the Android SDK License Agreement. This agreement is between you and Google. Make sure that you understand this license even if someone else has accepted the agreement on your behalf!

20 The Android SDK License Agreement (Cont d) Rights granted: Google grants you a limited, worldwide, royaltyfree, nonassignable, and nonexclusive license to use the SDK solely to develop applications for the Android platform. Google still holds all copyrights and intellectual property rights to the SDK. Google does not grant permission to use any of its brands, logos, or trade names. You will not remove any copyright notices therein.

21 The Android SDK License Agreement (Cont d) SDK usage: You may only develop Android applications with the SDK. You may not make derivative works from the SDK or distribute the SDK on any device. You may not distribute part of the SDK with other software.

22 The Android SDK License Agreement (Cont d) SDK changes and backward compatibility: Google may change the Android SDK at any time without notice and without regard to backward compatibility. Early APIs had frequent changes, but recent releases are reasonably stable. Each SDK update does affect at least a small number of apps. Updating your application is your own responsibility.

23 The Android SDK License Agreement (Cont d) Android application developer rights: You retain all rights to any Android software you develop with the SDK, including intellectual property rights. You also retain all responsibility for your own work.

24 The Android SDK License Agreement (Cont d) Android application privacy requirements: You agree that your application will protect the privacy and legal rights of your users. If your app accesses personal and private info, you must provide adequate privacy notice and keep the data stored securely. These include usernames, passwords, and so on. Privacy laws and regulations vary by user location. You are solely responsible for managing this data appropriately.

25 The Android SDK License Agreement (Cont d) Android application malware requirements: You are responsible for all applications you develop. You agree not to write disruptive applications or malware. You are solely responsible for all data transmitted through your application.

26 The Android SDK License Agreement (Cont d) Additional terms for specific Google APIs: Use of APIs such as Google Maps Android API is subject to further Terms of Service. You must agree to these additional terms before using those specific APIs. You must always include the copyright notice, too. Other API terms include Gmail, Blogger, Google Calendar, and YouTube. Your application s usage is limited to accessing those to which your user has explicitly granted permission.

27 The Android SDK License Agreement (Cont d) Develop at your own risk! Any harm that comes from developing with the Android SDK is your own fault and not Google s.

28 Reading the Android SDK Documentation Read locally or online: Online at

29 Reading the Android SDK Documentation (Cont d)

30 Exploring the Core Android Application Framework Which file comprises the Android framework? android.jar

31 Important Packages in the Android SDK Top-Level Package Name android.* dalvik.* java.* javax.* junit.* org.apache.http.* org.json org.w3c.dom org.xml.* org.xmlpull.* Description Android application fundamentals Dalvik virtual machine support classes Core classes and familiar generic utilities Encryption support Unit-testing support HTTP protocol support JSON support W3C DOM XML and HTML support SAX support for XML High-performance XML pull parsing

32 Popular Third-Party Android APIs Available outside the core Android SDK Installed separately Some are from Google, others from device manufacturers and other providers

33 Popular Third-Party Android APIs (Cont d) Android Support Library Google Mobile Ads SDK (com.google.android.gms.ads.*) Google Analytics SDK for Android (com.google.android.gms.analytics.*) Android Cloud Messaging for Android (GCM) (com.google.android.gms.gcm) Google App Indexing (com.google.android.gms.appindexing) Google App Invites (com.google.android.gms.appinvite) Google Play Game Services (com.google.android.gms.games) Google Fit (com.google.android.gms.fitness)

34 Exploring the Core Android Tools Android Studio Where you spend most of your time developing your apps Provides wizards for creating, debugging, and deploying Android apps Several buttons available on the toolbar for performing helpful actions

35 Android Studio Launch the Android Virtual Device Manager Launch the Android SDK Manager Launch the Android Device Monitor

36 Android Studio (Cont d)

37 Android SDK and AVD Managers The first Android toolbar icon launches the Android Virtual Device Manager. The second Android toolbar icon launches the Android SDK Manager.

38 Android SDK and AVD Managers (Cont d)

39 Android SDK and AVD Managers (Cont d)

40 Android SDK and AVD Managers (Cont d)

41 Android Emulator Helpful tool used for designing and developing Android applications Runs on your computer Behaves like a real device Load Android applications into the emulator to test and debug them Generic device, not tied to any one specific configuration Valuable, but should not be used as a replacement for testing on actual target devices

42 Android Emulator (Cont d)

43 Android Emulator (Cont d)

44 Exploring the Android Sample Applications Demo applications are not provided as part of the Android SDK by default. Android Studio provides a dialog for importing the sample applications from GitHub as a project. Android Studio sample applications code categories to investigate: Getting started Background Input Media Connectivity Notification Wearable

45 Chapter 2 Summary We have learned how to install and configure the tools for Android development. JDK, SDK, ADT Bundle We have explored many of the tools provided with the Android SDK. We have reviewed the Android SDK License Agreement. We have learned about important SDK packages. We have perused the sample applications provided with the SDK.

46 References and More Information Google s Android Developers Guide: Android SDK download site: Android SDK License Agreement: The Java Platform, Standard Edition: JetBrains: Android Developer Tools: The Eclipse Project: