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
   

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2. Who am I? :D
   Android & WP7 Developer @Digicorp
   Head, GDG Ahmedabad
   @pareshmayani
   www.TechnoTalkative.com
   

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3. What is Android?
   Why Android?
   Where Android?
   

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4. Why Android?
   1.3 Million
   Android Device Activations Per Day
   

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5. Why Android?
   400 Million
   Total Android device Activated http://goo.gl/1f45r
   

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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
   

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7. Why Android?
   • We love and trust Google
   • Open Source
   • Larger screen size (iPhone is Fixed size :D )
   • Google Play Store
   • Various Manufacturers
   

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9. Where Android?
   

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10. Where Android?
    

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11. Where Android?
    

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12. Where Android?
    http://goo.gl/s98Du
    Project Glass:
    

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13. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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14. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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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
    

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16. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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17. Views
    • Basic building block for UI
    components
    • Draws itself to the screen
    • Respond to Events
    

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18. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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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.
    

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21. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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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.
    

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23. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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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.
    

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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
    

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26. Building blocks of Android App
    Activities
    Views
    Services
    Content Providers
    Notifications
    Intents
    

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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
    

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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/
    

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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
    

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30. Android Development Environment
    

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31. Eclipse IDE
    Package
    Structure of
    your Android app
    Source Code
    Problems/Erros and Console messages
    Program
    Elements
    

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32. Eclipse UI Editor
    UI Elements
    UI View area
    

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33. Where to execute Android programs?
    - Emulator or Real Device
    

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34. Android Virtual Device Manager
    

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35. Android Virtual Device Manager
    

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36. Let’s create New AVD
    

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37. Android project structure
    

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38. Types of Layout
    Linear Layout
    Relative Layout
    Frame Layout
    Table Layout
    GridLayout
    

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39. Types of Widgets
    

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40. • Used to show captions or string values
    TextView
    

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41. Button
    • It used to execute some task based on the button’s
    click/selection action.
    

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43. EditText
    • Used to accept some inputs from the user.
    

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44. ImageView
    • Used to display image resources like logo, icon, etc.
    

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46. CheckBox
    • It’s for the selection of items.
    

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48. RadioButton
    • Its a two-states button that can be either checked or unchecked.
    

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50. Get in Touch
    twitter.com/pareshmayani
    fb.com/GDGAhmedabad
    http://gplus.to/GDGAhmedabad
    www.TechnoTalkative.com
    gplus.to/paresh.mayani
    

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