1. Introduction to Android Development CS 5115 Fall 2013 September 23

2. Agenda for today Quick overview of project presentations Intro to Android Development

3. http://developer.android.com/ training/index.html

4. Here’s how simple the app is

5. Define your app to the OS Java code – make the widgets, handle events Define your UI – widgets, layout Define strings (text) used in your UI

6. Defining your UI http://developer.android.com/training/basics/ firstapp/building-ui.html http://developer.android.com/training/basics/ firstapp/building-ui.html res/layout activity_main.xml

7. Defining the layout

8. Adding widgets

9. Responding to user actions http://developer.android.com/training/basics/ firstapp/starting-activity.html http://developer.android.com/training/basics/ firstapp/starting-activity.html

10. Still in activity_main.xml

11. Now let’s finally get to some Java

12. What does sendMessage actually do? Starts a new activity, passes some data to it (the string entered by the user)

13. Defining DisplayMessageActivity

14. This is just the basics! Now check out all the lessons in: http://developer.android.com/training/index. html http://developer.android.com/training/index. html See the navigation pane on the left side