Hello, Android: Introducing Google's Mobile Development by Ed Burnette

By Ed Burnette

Android is a software program toolkit for cell phones, created by means of Google and the Open Handset Alliance. It's within thousands of mobile phones and different cellular units, making Android an immense platform for program builders. that may be your individual application working on all these devices.

Getting all started constructing with Android is simple. You don't even desire entry to an Android cell, only a computing device the place you could set up the Android SDK and the telephone emulator that includes it. inside mins, "Hello, Android" gets you growing your first operating software: Android's model of "Hello, World."

From there, you'll building up a extra tremendous instance: an Android Sudoku video game. via steadily including positive aspects to the sport through the process the e-book, you'll find out about many elements of Android programming together with consumer interfaces, multimedia, and the Android lifestyles cycle.

This moment version has been thoroughly revised for Android 1.5 (Cupcake) and Android 1.6 (Donut). each web page and instance was once reviewed and up-to-date for compatibility with the recent model. furthermore, new appendixes help you create Widgets for the house display and put up your software to the Android Market.

If you're a hectic developer who'd otherwise be coding than analyzing approximately coding, this publication is for you. that can assist you locate what you must understand quickly, every one bankruptcy ends with a "Fast-Forward" part. those sections supply advice for the place you might want to pass subsequent if you have to learn the ebook out of order.

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By the time you finish this book, you’ll be able to write your own killer applications for Android. Now let’s take a closer look at the life cycle of an Android application. It’s a little different from what you’re used to seeing. 2 It’s Alive! On your standard Linux or Windows desktop, you can have many applications running and visible at once in different windows. One of the windows has keyboard focus, but otherwise all the programs are equal. You can easily switch between them, but it’s your responsibility as the user to move the windows around so you can see what you’re doing and close programs you don’t need anymore.

8 Adding Settings Android provides a nice facility for defining what all your program preferences are and how to display them using almost no code. com/apk/res/android" > The Sudoku program has two settings: one for background music and one for displaying hints.

Actually, you could do it either way. A WebView would support far more sophisticated formatting than a simple TextView, but it does have some limitations (such as the inability to use a transparent background). Also, WebView is a heavyweight widget that will be slower and take more memory than TextView. For your own applications, use whichever one makes the most sense for your needs. menu that pops up when you press and hold your finger on the screen (or press and hold the trackball or the D-pad center button).

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