Introduction to Mobile Development Using Android

CodeStock 2014

Transcript

1. Introduction to Mobile Development Using Android Christine Jones - @jonesc5 CodeStock 2014 cjones@scrippsnetworks.com
2. Goals of this session • Background about Android • Setting up your local environment • Basic Structure of an Android App • Things to consider when choosing mobile • Lessons Learned
3. First things, first... I am not a “mobile developer” I am a product developer, meaning I want to build the most appropriate solution to a problem and deliver the end product that makes my users ridiculously happy.
4. You should care about “mobile” For January 2014 in U.S.: • 55% of Internet Traffic - Mobile Devices ◦ Apps - 47% ◦ Mobile Browsers - 8% • As of January, American Adults: ◦ 55% own smartphones ◦ 42% own tablets source: http://money.cnn.com/2014/02/28/technology/mobile/mobile-apps-internet/
5. But why Android? • 70-80% of new devices are Android ◦ iOS users still more active ◦ lots of potential - replaces old feature-phones • Fragmentation ◦ Good - lots of devices ◦ Bad - lots of different devices • Not just phones Source: http://www.businessinsider.com/apple-android-market-share-ecommerce-2014-1
6. What is Android Development? • It’s based on Java ◦ Adds new capabilities • It’s not just phones ◦ wearables ▪ Google Glass ▪ Android Wear - smart watches
7. Anatomy of an Android App Four Components: 1. Activities 2. Services 3. Content Providers 4. Broadcast Receivers
8. Setup Up & Obligatory Hello World • Eclipse vs. Android Studio
9. Android Studio Note: Update to latest version or you could have issues with plugins
10. Create new Project
11. Activity • This is the UI ◦ screen or page - you need at least one • Views • Widgets - buttons, text, etc. ◦ building blocks of the view
12. Create Activity We’ll start with Blank
13. Create Activity
14. Basic Setup
15. Running Your App • Emulators, Emulators, Emulators • Due to the fragmentation of the Android system, you need to think carefully about what devices you want to support
16. Configure Emulator • Need this to run your app locally • Comparable to a web server
17. Defining Android Virtual Device Can manually define
18. Pre-loaded Android Virtual Devices Recommended unless you’re working on a specific device unavailable here
19. Pre-defined Device Shows info about default device options
20. Finally...time to try it out Warning: The emulator takes a LONG time to load
21. Our Hello World App
22. Creating the UI
23. Mobile Application * For our purposes “Age Old” is really the last few years Age Old* Question Mobile-Friendly Site
24. • Goals of Product ◦ Features - ex: do you need camera access? • Build Budget • Maintenance Budget • Audience • Design Constraints Factors to Consider
25. Courtesy: http://xkcd.com/1367/
26. Lessons Learned • It’s Java-based, but it’s not “Java” • Mobile is a different way of thinking about the user’s actions and goal of the program ◦ This makes it everything feel foreign while getting started, but does pass • Use Android’s online tutorials
27. Any Questions? Contact Info: Twitter: @jonesc5 Email: cjones@scrippsnetworks.com
28. Resources for Getting Started • http://developer.android.com/guide/compo nents/fundamentals.html • http://www.raywenderlich.com/56107/mak e-first-android-app-part-1 • http://www.sitepoint.com/beginning-androi d-launching-the-android-virtual-device/