Domo Arigato Mr. Roboto - Open Source Bridge 2009

Domo Arigato Mr. Roboto Sean Sullivan June 17, 2009

Wednesday June 17 3:50 PM - Morrison Domo Arigato Mr. Roboto Thursday June 18 11:20 AM - Hawthorne Android Location Services

Android is a software stack for mobile devices that includes an operating system, middleware and key applications source: Google

source: NY Times, May 27 2009

August 2005 Google acquires Android November 2007 Open Handset Alliance announcement Android SDK available

September 2008 HTC and T-Mobile announce G1 October 2008 Android 1.0 Android Market goes live G1 available in retail stores in USA Android open source project

February 2009 Android 1.1 HTC and Vodafone announce HTC Magic April 2009 Android 1.5 HTC Magic available in Spain

June 2009 Acer joins Open Handset Alliance Huawei announces U8230

Huawei U8230 source: http://www.huawei.com/news/view.do?id=10855&cid=42

Android applications • multiple applications, running simultaneously • user may switch between running applications • background services • copy and paste

Third party applications lifeaware.net Maverick Android Locale

Distributing Android apps • Android Market • self-publish on your own web site • use a 3rd party application store

Android Market

Android Market • US$25 registration fee for developers • developer receives 70% of each sale • remaining amount goes to carriers • Google does not take a percentage • http://www.android.com/market/

Self-publishing • upload application to your own web server http://icecondor.com/download/icecondor-v20090201.apk • use correct MIME type application/vnd.android.package-archive

System Architecture

Open source project • http://source.android.com • Apache 2.0 and GPL v2 • Git repository

Android applications • are written in the Java language • run on the Dalvik virtual machine • Android != J2ME

Dalvik VM • not a Java VM • design constraints: slow CPU, little RAM • will run on OS without swap space • http://sites.google.com/site/io/dalvik-vm-internals

Application API’s java.util.* java.io.* Java java.lang.* etc android.widget.* UI android.view.* android.graphics.* Telephony android.telephony.* SMS android.telephony.gsm.SmsManager

Application API’s Web android.webkit.WebView Camera android.hardware.CameraDevice Local database android.database.* Maps com.google.android.maps.MapView Location android.location.LocationManager Multimedia android.media.MediaPlayer HTTP org.apache.http.client.*

Getting started http://developer.android.com

Development tools • Java SDK • Android SDK • Eclipse • Eclipse plugin

Android SDK • Android emulator • command line tools • documentation • example applications

Android emulator

Eclipse plugin https://dl-ssl.google.com/android/eclipse/

Android applications • application package ﬁle: myapp.apk • an application is composed of one or more activities

Activity • an activity is usually a single screen in your application • however, activities can also be faceless • one activity is designated as the entry point for your application

android.app.Activity import android.app.Activity; public class MyActivity extends Activity { public void onCreate(Bundle savedValues) { super.onCreate(savedValues); setContentView(R.layout.main); } }

Application building blocks • AndroidManifest.xml • Intents & IntentReceivers • Activities • Services • Views • Notiﬁcations • Layouts • ContentProviders

UI development • XML • Java code

Android Views a view is an object that knows how to draw itself on the screen

ListView

DatePicker

MapView

Additional topics • Threading • Android IDL (AIDL) • Security model • Data synchronization • Internationalization • WiFi API • Power management • Bluetooth API

What’s next for Android? • more phones • text to speech API • “Donut”

Questions?

Thank you

Android resources • http://developer.android.com • http://android-developers.blogspot.com • http://code.google.com/p/apps-for-android/ • http://sites.google.com/site/io/ • http://www.openhandsetalliance.com • http://source.android.com

Domo Arigato Mr. Roboto - Open Source Bridge 2009

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