Introduction to Android Development CS 5115 Fall 2013 September 23

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

training/index.html

Here’s how simple the app is

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

Defining your UI firstapp/building-ui.html firstapp/building-ui.html res/layout activity_main.xml

Defining the layout

Adding widgets

Responding to user actions firstapp/starting-activity.html firstapp/starting-activity.html

Still in activity_main.xml

Now let’s finally get to some Java

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

Defining DisplayMessageActivity

This is just the basics! Now check out all the lessons in: html html See the navigation pane on the left side