Induction into the Android Army
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The document provides an overview of getting started with Android application development, covering essential steps such as downloading the Android SDK, choosing an IDE, and understanding emulators. It explains the Android architecture, including components like activities, services, and content providers, along with how to build an APK. Additionally, the document includes resources and links for further information on Android development.
Induction into the Android Army
- 1. Induction Into the Android Army Tom Opgenorth | tom@opgenorth.net
- 2. A Word From Our Sponsors
- 3. 1. Getting Started 2. Android Architecture 3. Parts of an Android Application 4. Look at Code! Things We’ll Talk About
- 5. 1. Download the Android SDK & Java 2. Get an IDE 3. Emulators & Devices 4. Google Developer Account Writing Android Apps
- 6. ❖ Only an approximation ❖ Emulators don’t replace devices ❖ Google’s emulator sucks A Word About Emulators ❖ Genymotion is a “better” emulator
- 7. So What Kind of Device? ❖ So Many To Choose From ❖ Try to get one you can “root” ❖ Prefer Nexus devices from Google ❖ Make sure you enable “Developer Mode”
- 8. What does Android Look like under the Hood? The Android Operating System
- 10. ❖ Distinct components with specific roles ❖ Adaptable to many different forms and purposes Android App Architecture
- 11. ❖ Activity.Equals(Screen) ❖ Displays all UI Elements for an app ❖ XML for layout files ❖ UI can be decomposed into Fragments Activities
- 13. ❖ A component that performs long running operations in the background ❖ No User Interface ❖ Can be “bound” to other applications Services
- 14. Intents Pick Photo Call Mom Edit Contact View Web Page Get GPS Loca>on Play Song Send Email Start App Send TweetView Map View Video Browse Market Capture Video Capture Photo Edit Calendar
- 15. ❖ Listens for messages ❖ Tells Android what to to in response to message Broadcast Receiver
- 16. Content Provider ❖ One structured way to share data between applications. ❖ Not just databases: files, photos, contacts, and more ❖ Uses an Android URI to reference content
- 17. ❖ A - Identifies this is for content ❖ B - Authority (who owns this data) ❖ C - A “query” to help identify where to find the content ❖ D - an ID that identifies a particular piece of content Content Provider
- 18. The Manifest File AndroidManifest.xml Broadcast Receivers Content Providers Intents Activities App meta-data
- 19. ❖ Non-code files and static content that your app uses. ❖ Different resources for different devices ❖ Android decides what to use ❖ Default vs Alternate Resources Resources
- 22. Building an APK - Simplified
- 23. Show Me The Code!
- 24. ❖ Android - http://developer.android.com ❖ Genymotion - http://www.genymotion.com Links / References