Android™ Application Development - Bahar Ali Khan

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Chapter 2: Getting Started 24 Figure 2-3 If you download a new version of the SDK and place it in a different location, you will need to update this preference to refl ect the SDK with which the ADT should be building. Updating the Plug-in As the Android SDK matures, there are likely to be frequent updates to the ADT plug-in. In most cases, to update your plug-in, you simply: 1. Navigate to Help ➪ Software Updates ➪ Find and Install … 2. Select Search for updates of the currently installed features, and click Finish … 3. If there are any ADT updates available, they will be presented. Simply select them and choose Install. Sometimes a plug-in upgrade is so signifi cant that the dynamic update mechanism can’t be used. In those cases, you may have to remove the previous plug-in completely before installing the newer version as described in the previous section. Creating Your First Android Activity You’ve downloaded the SDK, installed Eclipse, and plugged in the plug-in. You’re now ready to start programming for Android. Start by creating a new project and setting up your Eclipse run and debug confi gurations. Starting a New Android Project To create a new Android project using the Android New Project Wizard: 1. Select File ➪ New ➪ Project. 2. Select the Android Project application type from the Android folder, and click Finish.
Chapter 2: Getting Started 3. In the dialog that appears (shown in Figure 2-4), enter the details for your new project. The “Project name” is the name of your project fi le; the “Package name” specifi es its package; the “Activity name” is the name of the class that is your initial Activity; and the “<strong>Application</strong> name” is the friendly name for your application. Figure 2-4 4. When you’ve entered the details, click Finish. The ADT plug-in then creates a new project that includes a new class that extends Activity. Rather than being completely empty, the default template implements “Hello World.” Before modifying the project, take this opportunity to confi gure run and debug launch confi gurations. Creating a Launch Confi guration Launch confi gurations let you specify runtime options for running and debugging applications. Using a launch confi guration you can specify the following: ❑ ❑ ❑ The Project and Activity to launch The emulator options to use Input/output settings (including console defaults) You can specify different launch confi gurations for Run and Debug modes. The following steps show how to create a launch confi guration for an Android application: 1. Select Run ➪ Open Run Dialog … (or Run ➪ Open Debug Dialog …). 2. Right-click Android <strong>Application</strong> on the project type list, and select New. 25
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Page 8 and 9: About the Author Originally from Pe
Page 10 and 11: Acknowledgments A big thank you goe
Page 12 and 13: Contents Chapter 2: Getting Started
Page 14 and 15: Contents xii Saving and Loading Fil
Page 16 and 17: Contents Chapter 10: Accessing Andr
Page 19 and 20: Introduction Now is an exciting tim
Page 21 and 22: Introduction covered, you can move
Page 23: Introduction At http://p2p.wrox.com
Page 26 and 27: Chapter 1: Hello, Android 2 Using t
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Page 43 and 44: Getting Started All you need to sta
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Page 47: Installing the ADT Plug-in Install
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Page 61 and 62: Ensuring a Seamless User Experience
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Chapter 4: Creating User Interfaces
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Chapter 5: Intents, Broadcast Recei
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Data Storage, Retrieval, and Sharin
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Chapter 6: Data Storage, Retrieval,
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Querying Your Database Chapter 6: D
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} // Open or create the database to
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Adding, Updating, and Deleting Cont
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Maps, Geocoding, and Location-Based
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Chapter 7: Maps, Geocoding, and Loc
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Summary Chapter 7: Maps, Geocoding,
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Chapter 8: Working in the Backgroun
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Peer-to-Peer Communication In this
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Chapter 9: Peer-to-Peer Communicati
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Handling Subscription Requests Chap
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Figure 9-4 Chapter 9: Peer-to-Peer
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Accessing Android Hardware Android
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Chapter 10: Accessing Android Hardw
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content.put(Audio.AudioColumns.DATE
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public void onShutter() { // TODO D
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Chapter 11: Advanced Android Develo
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400 Android, getting started Androi
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402 databases databases creating ea
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