Developing the android application

1
Developing the android application
2
Android

• Operating system for mobile devices with a Java
  programming interface.
• Provides tools, e.g. a compiler, debugger, device
  emulator, and its own Java Virtual machine (DVM).
• Application Components
• Activity present a visual user interface.
• Services run in the background without UI.
• Broadcast Receivers receives system messages.
  They can be used to react to changed conditions
  in the system
• Content Providers provide data to all
  applications. Android contains a SQLLite DB which
  can serve as data provider.

3
Installation

• Download and Install the SDK
• http//developer.android.com/sdk/installing.html
• Download and Install Eclipse
• Install ADT plug-in for Eclipse
• Add Platforms (Version1.5 or 1.6)
• Complete tutorials
• http//developer.android.com/resources/tutorials/h
  ello-world.html

4
Programming Assignment 1

• Description
• Develop an application that can turn on/off wifi
  connection.
• The application checks current status of wifi
  connectivity.
• The application displays a button and texts to
  allow turning on or off wifi.
• The application turns on or off wifi connection
  when the button is clicked.
• Hints
• May need android.net.wifi package.
• Due by Wednesday, Sep. 1 (Before the class)

5
Programming Assignment 1
Start
If wifi is enabled.
If wifi is disabled.
Check the wifi status.
If ON button is clicked ---------- Set wifi
enabled
Enabled
Disabled
If OFF button is clicked ---------- Set wifi
disabled
Display texts Create OFF button
Display texts Create ON button
6
Annoucement

• For assignment 1, you do NOT need to submit the
  screenshots!
• TA (Grader) Office hours
• T Th 1030 am 12 pm
• Google group has been created.
• Send email to su.kim.asu_at_gmail.com to get
  invited.
• If you want to test your application with an
  android phone, come to my office during my office
  hours or make an appointment.