Head First Android Development

Head First Android Development

Jonathan Simon

Language: English

Pages: 532

ISBN: 2:00125938

Format: PDF / Kindle (mobi) / ePub

Head First Android Development

Jonathan Simon

Language: English

Pages: 532

ISBN: 2:00125938

Format: PDF / Kindle (mobi) / ePub


Android devices are stealing market share from the iPhone with dramatic speed, and you have a killer app idea. Where to begin? Head First Android Development will help you get your first application up and running in no time with the Android SDK and Eclipse plug-in. You'll learn how to design for devices with a variety of different screen sizes and resolutions, along with mastering core programming and design principles that will make your app stand out.

Whether you're a seasoned iPhone developer who wants to jump into the the Android Market, or someone with previous programming skills but no mobile apps in your resume, this book offers a complete learning experience for creating eye-catching, top-selling Android applications.

You'll learn how to:
* Install the Android SDK and Eclipse plug-in and get started building apps
* Add buttons, edit text fields, and build your own navigation options in the Android menu
* Customize the look of your app with theming and adding image resources
* Use Android's content provider mechanism to add images and contact information to an app, and establish permissions for their use
* Work with the Android devices' camera, GPS, and accelerometer
* Experiment with different Android emulator configurations to simulate different devices with a variety of screen sizes
* Optimize, test, and distribute your application in the Android Market
We think your time is too valuable to waste struggling with new concepts. Using the latest research in cognitive science and learning theory to craft a multi-sensory learning experience, Head First Android Development uses a visually rich format designed for the way your brain works, not a text-heavy approach that puts you to sleep.

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worry! Android comes with other layouts that you can use. IN this chapter, you’ll learn about another super powerful layout called RelativeLayout. This allows you to layout Views on screen relative to each other (hence the name). It’s new way to layout your Views, and as you’ll see in the chapter, a way to optimize your screen layouts. 11 tweaking your ui Giving your app some polish With all the competition in the marketplace, your apps must do more than just work. They have to look great

other screen is also useful; it shows a more visual tree structure with detailed attributes about each view). select the emulator View hierarchy Zoomed in view (zooms where the crosshairs are) You’ll see this screen when you launch the Hierarchy Viewer. After you select theto emulator, click here ow. launch the main wind Your app. The red square surrounds the View selected in the leftmost panel). Here is the extra space... INSIDE the ImageView. (You can tell because the ImageView is

drink my coffee, finish the paper ... It would be great if everything happened instantly. Unfortunately, some things just take time. This is especially true on mobile devices, where network latency and the occasionally slow processors in phones can cause things to take a bit longer. You can make your apps faster with optimizations, but some things just take time. But you can learn how to manage long-running processes better. In this chapter, you’ll learn how to show active and passive status to

ing style rather than tak to: a stimulating dinner ion ent att re mo pay . Which would you yourself too seriously lec ture? ly rds, unless you active deeply. In other wo re mo ink th d, to ate der has to be motiv Get the learner ns in your head. A rea pe hap ch mu ng new thi and generate flex your neurons, no ms, draw conclusions, inspired to solve proble provok ing questions, htug tho engaged, curious, and llenges, exercises, and cha d nee you t, tha ses. knowledge. And for brain and multiple

non-market applications on their device). APK Let’s get some of Bobby’s friends to download the app... you are here 4   169 getting feedback Let’s see what Bobby’s friends have to say Bobby got a bunch of his friends to download the app over the air and play with it for a few days. Most people were pretty happy. But two of his friends, Jesse and Shawn, came back with some great suggestions for improvement. Those buttons just seem like a waste of space. I want to see the space images! Jesse

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