Android code lab @ GDG Indore

It was my first speaking engagement of the year 2013. It was actually an Android code lab organized by GDG Indore, India on 12th January 2013.

Transcript

1. Android Code lab Paresh Mayani
2. Who am I? :D Android & WP7 Developer @Digicorp Head, GDG Ahmedabad @pareshmayani www.TechnoTalkative.com
3. What is Android? Why Android? Where Android?
4. Why Android? 1.3 Million Android Device Activations Per Day
5. Why Android? 400 Million Total Android device Activated http://goo.gl/1f45r
6. Why Android? 68.1% Android Market Share world wide – Q3 2012 http://www.huffingtonpost.com/2012/09/18/android-market-share-q3-2012_n_1893292.html
7. Why Android? • We love and trust Google • Open Source • Larger screen size (iPhone is Fixed size :D ) • Google Play Store • Various Manufacturers
9. Where Android?
10. Where Android?
11. Where Android?
12. Where Android? http://goo.gl/s98Du Project Glass:
13. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
14. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
15. Activities • Fundamental object of android app with lifecycle • Having UI • Interact with the user • One app can have Multiple activities • Must have 1 Main Activity
16. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
17. Views • Basic building block for UI components • Draws itself to the screen • Respond to Events
18. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
19. Intents • A simple message object that represents an "intention" to do something • Most significant use => launching of activities, where it can be thought of as the glue between activities.
21. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
22. Services • can perform long-running operations in the background • Doesn’t Provide User Interface (UI) • Another application component can start a service and it will continue to run in the background even if the user switches to another application.
23. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
24. Content Providers • presents data to external applications • provide a level of abstraction for any data stored on the device that is accessible by multiple applications.
25. Android application - 3 Activity 3.1 Android application - 2 Activity 2.1 Activity 2.1 Android application - 1 Activity 1.1 Activity 1.2 Activity 1.3 Content Provider - A XML Data File SQLite Remote
26. Building blocks of Android App Activities Views Services Content Providers Notifications Intents
27. Notifications • A Notification is a small icon that appears in the status bar. • Users can interact with this icon to receive information • For example: New SMS message, Missed call, New Mail
28. How to Install Android? 1. Download and setup the Eclipse IDE http://eclipse.org/downloads/ 2. Download JDK & Install http://www.oracle.com/technetwork/java/javase/downloads/index.html 3. Download the Android SDK starter package http://developer.android.com/sdk/index.html 4. Android Development Tools (ADT) plug-in , download from within eclipse https://dl-ssl.google.com/android/eclipse/
29. How to Install Android? Download the SDK ADT Bundle for Windows • ADT (Android Developer Tools) Bundle • With a single download, the ADT Bundle includes everything you need to begin developing apps: – Eclipse + ADT plug-in – Android SDK Tools – Android Platform-tools – The latest Android platform – The latest Android system image for the emulator
30. Android Development Environment
31. Eclipse IDE Package Structure of your Android app Source Code Problems/Erros and Console messages Program Elements
32. Eclipse UI Editor UI Elements UI View area
33. Where to execute Android programs? - Emulator or Real Device
34. Android Virtual Device Manager
35. Android Virtual Device Manager
36. Let’s create New AVD
37. Android project structure
38. Types of Layout Linear Layout Relative Layout Frame Layout Table Layout GridLayout
39. Types of Widgets
40. • Used to show captions or string values TextView
41. Button • It used to execute some task based on the button’s click/selection action.
43. EditText • Used to accept some inputs from the user.
44. ImageView • Used to display image resources like logo, icon, etc.
46. CheckBox • It’s for the selection of items.
48. RadioButton • Its a two-states button that can be either checked or unchecked.
50. Get in Touch twitter.com/pareshmayani fb.com/GDGAhmedabad http://gplus.to/GDGAhmedabad www.TechnoTalkative.com gplus.to/paresh.mayani