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This document provides an overview of Android development. It begins with a brief history of mobile phones and introduces Android as an open-source operating system developed by Google and the Open Handset Alliance. The document then discusses Android hardware components, software components like the Dalvik virtual machine and application framework, and how to develop Android applications using the Android SDK. It provides examples of using intents to launch built-in functionality and implementing a basic currency converter app. Videos and links are included to provide additional learning resources on Android architecture, application lifecycle, APIs, and development tools.

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Lesson 1 Android Development Introduction Victor Matos Cleveland State University Portions of this page are reproduced from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.
2007 • iPhone • Android 2 2 2 1. Android – How-do-cellular-phones-work? Mobile Phone Evolution 2 1876 • Alexander Graham Bell became the first to receive a patent for the electric phone. 1936 • Alfred Gross. Case Tech OH (Case Western Reserve University). Invented/Patented Walkie-talkie, CB radio, Telephone Pager. 1975 • Dr. Martin Cooper invented first commercial portable Motorola radio phone Chester Gould Images from: http://en.wikipedia.org/wiki/Dick_Tracy http://en.wikipedia.org/wiki/Martin_Cooper_(inventor)
3 3 3 1. Android – How-do-cellular-phones-work? Hardware: What is inside a Cellular Phone? 3 Oversimplifying… Cellular phone = radio + computer* = + Industries ⟵ ∑ Software + Telecom+ Semiconductor + Marketing
4 4 4 4 1. Android – How-do-cellular-phones-work? Hardware: Reusing Cell Phone Frequencies 4 Great concept !!! The core idea behind cellular phones is the division of a large city into small areas called cells. Each hexagonal cell covers approx. 10 sq miles (26 km2) Base stations use low-power transmitters, therefore the same frequencies can be reused in non-contiguous cells.
Software: What is Android? • Android is a Linux-based operating system for mobile devices. • The system is being developed by the Open Handset Alliance and Google Inc. • Android is an open-source project and is distributed free of charge. • The operating system has a number of native applications supporting telephony, messaging, emailing, contact management, calendar, entertainment, multimedia experience, location services, mapping, social interaction, etc. • Third party Java developers can use the Android API to extend the functionality of the devices. • Google provides a on-line electronic market for third-party developers to sell their custom applications. 5
Why Android? Listen from the project creators/developers (2.19 min) – Nick Sears. Co-founder of Android – Steve Horowitz. Engineering Director – Dam Morrill. Developer – Peisun Wu. Engineering Project Manager – Erick Tseng. Project Manager – Iliyan Malchev. Engineer – Mike Cleron. Software Manager – Per Gustafsson. Graphics Designer. – etc… LINK: http://www.youtube.com/watch?v=6rYozIZOgDk&eurl=http://www.android.com/about/&feature=player_embedded You will hear statements such as: “…currently it is too difficult to make new products … open software brings more innovation … choices … lower costs … enables the industry to create….more applications such as family planner, my taxes, … understand my wife better, … ” 6
What is the Open Handset Alliance? A consortium of 80+ technology and mobile business companies. Quoting from www.OpenHandsetAlliance.com site (2/25/2012) 7 “ … Today, there are 1.5 billion television sets in use around the world. 1 billion people are on the Internet. But nearly 3 billion people have a mobile phone, making it one of the world’s most successful consumer products… Building a better mobile phone would enrich the lives of countless people across the globe. The Open Handset Alliance™ is a group of mobile and technology leaders who share this vision for changing the mobile experience for consumers …”
Open Handset Alliance Members Operators Software Co. Commercializat. Semiconductor Handset Manf Bouygues Tele China Mobile China Telec. China Unicom KDDI Corp. NTT DoCoMo Softbank Sprint Nextel Telecom Italia Telefónica Telus T-Mobile ... Vodafone Ascender Corp. Borqs eBay Esmertec Google LivingImage NMS Comm. Nuance Comm. PacketVideo SkyPop … SONiVOX Accenture Aplix Astonishing Tribe Noser Engineering Omron Software Sasken Teleca … Wind River Systems ARM Atheros Audience Broadcom Corp. CSR Plc. Cypress Freescale Gemalto Intel Corp. Marvell Tech MediaTek MIPS Techn. Nvidia Corp Qualcomm Renesas Corp ST-Ericsson Synaptics Texas Instrum. Via Telecom ACER ASUS Dell Garmin HTC Kyocera Lenovo Mobile LG Motorola NEC Samsung Sharp … Sony Ericsson … Toshiba 8
See Android Developers Short video (4 min.) Dave Bort and Dan Borstein, members of the Android Open Source Project talk about their experience. 9 http://www.youtube.com/watch?v=7Y4thikv-OM
The Mobile Revolution Not so long ago … Today 1. Phone 2. Pager 3. PDA Organizer 4. Laptop 5. MP3 Portable music player 6. Wired modem 7. No Internet access / limited access 1. Smartphone 2. Laptop (perhaps!) 10 Tomorrow ? Electronic tools of a typical business warrior
The Mobile Revolution Dreaming aloud I want my 2015 Smartphone to be … 1. Phone 2. Pager 3. PDA Organizer 4. High Quality Camera (still & video) 5. Portable music player 6. Portable TV / Video Player / Radio 7. Laptop 8. Play Station 9. GPS / Compass / Navigation (road & inside buildings) 10. Golf Caddy (ball retriever too) 11. Book Reader (I don’t read, It reads to me) 12. Electronic key (Car / Home / Office) 13. Remote Control (Garage, TV, …) 14. Credit Card / Driver’s License / Passport / Airplane Ticket 15. Cash 16. Cook, house chores 17. Psychologist / Mentor / Adviser 18. Personal trainer 19. Dance instructor 20. ???? 11
Android vs. OS Competitors 12 1.Apple Inc. 2.Microsoft 3.Nokia Symbiam 4.Palm & webOS 5.Research In Motion vs.
Android Software/Hardware Components • Dalvik virtual machine • Integrated browser (WebKit) • Graphic Capabilities (hardware acceleration) • SQLite for structured data storage • Media support (audio/video) • GSM Telephony (hardware dependent) • Bluetooth, EDGE, 3G, 4G, and Wi-Fi (hardware dependent) • Camera, GPS, compass, and accelerometer (hardware dependent) • Software Development Tools & Application framework (device emulator, debugging, profiling, plugin for the Eclipse IDE, resource managers) 13
Android Components 14
Android Components 15 Video 1/3: Android’s Architecture Presented by Mike Cleron, Google Corp. (13 min) Available at: http://www.youtube.com/watch?v=QBGfUs9mQYY
Android Components 16 Video 2/3: Application’s Life Cycle Presented by Mike Cleron, Google Corp. (7 min) Available at: http://www.youtube.com/watch?v=fL6gSd4ugSI&feature=channel
Android Components 17 Video 3/3: Andoid’s API Presented by Mike Cleron, Google Corp. (8 min) Available at: http://www.youtube.com/watch?v=MPukbH6D-lY&feature=channel
Android Application Framework Video: Inside the Android Application Framework (about 52 min) Presented by Dan Morrill – Google At Google Developer Conference San Francisco - 2008 Available at: http://sites.google.com/site/io/inside-the-android-application-framework 18 Android is designed to be fast, powerful, and easy to develop for. This session will discuss the Android application framework in depth, showing you the machinery behind the application framework. explains the life-cycle of an android apk. very good!
Android Support - Education Video: Android Development Tools (about 60 min) Google 2011 Developer Conference San Francisco Presented by • Xavier Ducrohet, tech-lead for the Android SDK and Developer Tools. • Tor Norbye, engineer on the Android SDK team working on visual tools for Android development. LINK: http://www.google.com/events/io/2011/sessions/android-development-tools.html 19
Android Components Video: An Introduction to Android (about 52 min) Presented by Jason Chen – Google At Google Developer Conference San Francisco - 2008 Available at: http://www.youtube.com/watch?v=x1ZZ-R3p_w8 20
Dalvik Virtual Machine Video (61 min) Dalvik VM Internals Presented by Dan Borstein At Google Developer – 2008 San francisco Available at: http://www.youtube.com/watch?v=ptjedOZEXPM 21
Android Intents • An Intent is a request for services. • An Intent is made up of various pieces including: – desired action or service, – data, and – category of component that should handle the intent and instructions on how to launch a target activity. 22
Example of Built-In Android Intents 23 Action Data The general action to be performed, such as: ACTION_VIEW, ACTION_EDIT, ACTION_MAIN, etc. The data to operate on, such as a person record in the contacts database, expressed as a Uri.
Intents 24 Some examples of Intent’s action/data pairs are: ACTION_VIEW content://contacts/1 -- Display information about the person whose identifier is "1". ACTION_DIAL content://contacts/1 -- Display the phone dialer with the person filled in. ACTION_VIEW tel:123 -- Display the phone dialer with the given number filled in ACTION_DIAL tel:123 -- Display the phone dialer with the given number filled in. ACTION_EDIT content://contacts/1 -- Edit information about the person whose identifier is "1". ACTION_VIEW content://contacts/ -- Display a list of people, which the user can browse through.
Example1: Java + Built-in Intent The following fragment calls an Intent whose job is to invoke a built-in task (ACTION_VIEW) and explore the Contacts available in the phone. Intent myIntent = new Intent( Intent.ACTION_VIEW, Uri.parse("content://contacts/people")); startActivity(myIntent); 25
Example1: Built-in Intent Intent uses ACTION_VIEW to see Contacts. 26
Example1: Built-in Intent Complete code to see Contacts. 27 public class AndDemo1 extends Activity { /** show contact list */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Intent myIntent = new Intent( Intent.ACTION_VIEW,Uri.parse( "content://contacts/people")); startActivity(myIntent); } }
Pieces of an Android Application Structure of a typical Android Application 28
Android Manifest xml File • Every application must have an AndroidManifest.xml file (with precisely that name) in its root directory. • The manifest presents essential information about the application to the Android system, information the system must have before it can run any of the application's code. 29
Android Manifest xml File <action> <activity> <activity-alias> <application> <category> <data> <grant-uri-permission> <instrumentation> <intent-filter> <manifest> <meta-data> <permission> <permission-group> <permission-tree> <provider> <receiver> <service> <uses-configuration> <uses-library> <uses-permission> <uses-sdk> 30 These are the only legal elements; you cannot add your own elements or attributes.
Android Manifest xml File Among other things, the manifest does the following: – It names the Java package for the application. The package name serves as a unique identifier for the application. – It describes the components of the application — the activities, services, broadcast receivers, and content providers that the application is composed of. – It names the classes that implement each of the components and publishes their capabilities (for example, which Intent messages they can handle). These declarations let the Android system know what the components are and under what conditions they can be launched. – It determines which processes will host application components. – It declares which permissions the application must have in order to access protected parts of the API and interact with other applications. – It also declares the permissions that others are required to have in order to interact with the application's components. – It lists the Instrumentation classes that provide profiling and other information as the application is running. These declarations are present in the manifest only while the application is being developed and tested; they're removed before the application is published. – It declares the minimum level of the Android API that the application requires. – It lists the libraries that the application must be linked against. 31
Android Manifest xml File <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="matos.earthquake" android:versionCode="1" android:versionName="1.0.0"> <application android:icon="@drawable/yellow_circle" android:label="@string/app_name"> <activity android:name=".AndQuake" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".SatelliteMapping"> </activity> <service android:name="AndQuakeService" android:enabled="true" > </service> <receiver android:name="AndQuakeAlarmReceiver" > <intent-filter> <action android:name = "ALARM_TO_REFRESH_QUAKE_LIST"/> </intent-filter> </receiver> </application> <uses-library android:name="com.google.android.maps" /> <uses-permission android:name="android.permission.INTERNET" /> </manifest> 32
Example2. Currency converter Implementing a simple currency converter: USD – Euro – Colon (CR) Note. Naive implementation using the rates 1 Costa Rican Colon = 0.001736 U.S. dollars 1 Euro = 1.39900 U.S. dollars 33
Example2. Currency converter 34
Example2. Currency converter 35 package matos.currencyconvereter; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class Currency1 extends Activity { // naive currency converter from USD to Euros & Colones final double EURO2USD = 1.399; final double COLON2USD = 0.001736; // GUI widgets Button btnConvert; Button btnClear; EditText txtUSDollars; EditText txtEuros; EditText txtColones;
Example2. Currency converter 36 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // bind local controls to GUI widgets txtUSDollars = (EditText)findViewById(R.id.txtUSDollars); txtUSDollars.setHint("Enter US dollars"); txtEuros = (EditText)findViewById(R.id.txtEuros); txtColones = (EditText)findViewById(R.id.txtColones); // attach click behavior to buttons btnClear = (Button)findViewById(R.id.btnClear); btnClear.setOnClickListener(new OnClickListener() { // clear the text boxes @Override public void onClick(View v) { txtColones.setText(""); txtEuros.setText(""); txtUSDollars.setText(""); } });
Example2. Currency converter 37 // do the conversion from USD to Euros and Colones btnConvert = (Button) findViewById(R.id.btnConvert); btnConvert.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { String usdStr = txtUSDollars.getText().toString(); double usd = Double.parseDouble( usdStr ); String euros = String.valueOf( usd / EURO2USD ); String colones = String.valueOf( usd / COLON2USD ); txtEuros.setText(euros); txtColones.setText(colones); } catch (Exception e) { Toast.makeText(v.getContext(), "Invalid data - try again" , Toast.LENGTH_SHORT).show(); } } });// setOnClick... }// onCreate }// class
Example2. Currency converter 38
Example2. Currency converter 39 Resource: res/ layout/main.xml (1/2) <?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/widget47" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/r es/android" > <TextView android:id="@+id/caption1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Currency Converter v0.01" android:textSize="18sp" android:textStyle="bold" > </TextView> <TextView android:id="@+id/greenFiller1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#ff006666" > </TextView> <AbsoluteLayout android:id="@+id/absLayout" android:layout_width="316px" android:layout_height="308px" android:background="#ff003399" > <TextView android:id="@+id/usdCaption" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="US Dollars" android:layout_x="40px" android:layout_y="15px" > </TextView> <EditText android:id="@+id/txtUSDollars" android:layout_width="150px" android:layout_height="wrap_content" android:layout_x="130px" android:layout_y="10px" > </TextView>
Example. Currency converter 40 Resource: res/ layout/main.xml (2/2) <EditText android:id="@+id/txtEuros" android:layout_width="150px" android:layout_height="wrap_content“ android:layout_x="130px" android:layout_y="70px" > </EditText> <TextView android:id="@+id/colonCaption" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Colones(CR)" android:layout_x="40px" android:layout_y="135px" > </TextView> <EditText android:id="@+id/txtColones" android:layout_width="150px" android:layout_height="wrap_content“ android:layout_x="130px" android:layout_y="130px" > </EditText> <Button android:id="@+id/btnConvert" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text=" Convert " android:layout_x="10px" android:layout_y="190px" > </Button> <Button android:id="@+id/btnClear" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text=" Clear " android:layout_x="90px" android:layout_y="190px" > </Button> </AbsoluteLayout> </LinearLayout>
Example. Currency converter 41 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="matos.currencyconvereter" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Currency1" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="3" /> </manifest>
42 42 APPENDIX The Size of the Mobile Market Reference: http://gizmodo.c om/5489036/cell phone-overshare
The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 43 4 bn Mobile Phone worldwide (half the population of the planet) 1.5bn Televisions worlwide 1.4bn Internet users worldwide 480 m Papers 2009 Mobile market compared to other technologies 48.7% News and Sport Information 20.21% Social Networking 11.94% Entertainment News 7.13% Traded Stocks and Financial 6.69% Movie information 5.33% Business Directory Content accessed from mobile phones
$600 bn Voice $130 bn Messaging $70 bn Non-messaging 2009 Mobile Revenue The $ize of the Mobile Market – 2009 44 Revenue Year 2009 Microsoft $78bn Toyota Motors $204bn Exxon Mobil $301bn Extracted from: http://gizmodo.com/5489036/cellphone-overshare http://www.microsoft.com/investor/reports/ar09/10k_fr_bal.html Exxon Mobil 2009 Summary Annual Report 2010 Toyota Annual Report (pp 12) Revenue is the collective amount of income made by a company (usually from the sales of goods & services)
The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 45 97.57% Google 1.94% Yahoo 0.63% Other 0.25% Ask 0.11% MSM 2.43% 2009 Mobile Search Market
46 46 Appendix. The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 46 3.05 bn SMS users worldwide 2.6 SMS per day per person world average the most used written communication tool of the planet 600 m IM users worldwide 1.3 bn Email users worldwide 2009 How SMS compares as a text communication application
The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 47 51% Symbian 19% RIM 13% iPhone 9% Windows 6% Other 2% Android 2009 Mobile Operating System Market Share Worldwide
48 The Size of the Mobile Market – Q2 / 2010 Extracted from: http://www.businessinsider.com/android-iphone-market-share-2010-8 48 Google 17% Nokia 41% Apple 14% RIM 18% Microsoft 5% Others 5%
49 The Size of the Mobile Market – Q4 / 2010 Extracted from http://www.canalys.com/pr/2011/r2011013.pdf 49 Google 32.9% Nokia 30.6% Apple 16.0% RIM 14.6% Microsoft 3.1% Others, 2.9% Combined sales in Q4 300 million units
50 The Size of the Mobile Market – Q2 / 2011 Extracted from http://www.channelinsider.com/c/a/Messaging-and-Collaboration/Android-Smartphone-Marketshare-Grows-NPD-Report-469609/ 50 Android, 52% iPhone , 29% RIM, 11% Windows, WebOs, 5% Others, 3%
51 A Few New Products for 2011 -13 51 Motorola Atrix 4G (ATT Store) Dual-core processor - 1 GB RAM Tablet Google Glasses Samsung Smartwatch
Cell-Phone Diffusion 52 Dr. Lyza Lyth Mama Justine & Children Mount Kilimangaro Tanzania, October 2010
53 Thanks for being here Questions?
54 Bibliography: 1. Android Developers. http://developer.google.com/index.html 2. Professional Android Application Development by Reto Meier ISBN: 978- 0-470-34471-2. Wrox Publications, 2008. 3. Unlocking Android by Frank Ableson, Charlie Collins, and Robi Sen. ISBN 978-1-933988-67-2. Manning Publications, 2009. 4. Professional Android 2 Application Development (Wrox Programmer to Programmer) by Reto Meier. ISBN-10: 0470565527. Wrox Pub. 2010. 5. The Busy Coder's Guide to Advanced Android Development by Mark Murphy. ISBN ISBN: 978-0-9816780-5-4. CommonsWare Pub. 2012. 6. Android Programming Tutorials by Mark Murphy. ISBN ISBN: 9 ISBN: 978- 0-9816780-7-8. CommonsWare Pub. 2011.

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Android-Chapter01-Intro.pptx

  • 1. Lesson 1 Android Development Introduction Victor Matos Cleveland State University Portions of this page are reproduced from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.
  • 2. 2007 • iPhone • Android 2 2 2 1. Android – How-do-cellular-phones-work? Mobile Phone Evolution 2 1876 • Alexander Graham Bell became the first to receive a patent for the electric phone. 1936 • Alfred Gross. Case Tech OH (Case Western Reserve University). Invented/Patented Walkie-talkie, CB radio, Telephone Pager. 1975 • Dr. Martin Cooper invented first commercial portable Motorola radio phone Chester Gould Images from: http://en.wikipedia.org/wiki/Dick_Tracy http://en.wikipedia.org/wiki/Martin_Cooper_(inventor)
  • 3. 3 3 3 1. Android – How-do-cellular-phones-work? Hardware: What is inside a Cellular Phone? 3 Oversimplifying… Cellular phone = radio + computer* = + Industries ⟵ ∑ Software + Telecom+ Semiconductor + Marketing
  • 4. 4 4 4 4 1. Android – How-do-cellular-phones-work? Hardware: Reusing Cell Phone Frequencies 4 Great concept !!! The core idea behind cellular phones is the division of a large city into small areas called cells. Each hexagonal cell covers approx. 10 sq miles (26 km2) Base stations use low-power transmitters, therefore the same frequencies can be reused in non-contiguous cells.
  • 5. Software: What is Android? • Android is a Linux-based operating system for mobile devices. • The system is being developed by the Open Handset Alliance and Google Inc. • Android is an open-source project and is distributed free of charge. • The operating system has a number of native applications supporting telephony, messaging, emailing, contact management, calendar, entertainment, multimedia experience, location services, mapping, social interaction, etc. • Third party Java developers can use the Android API to extend the functionality of the devices. • Google provides a on-line electronic market for third-party developers to sell their custom applications. 5
  • 6. Why Android? Listen from the project creators/developers (2.19 min) – Nick Sears. Co-founder of Android – Steve Horowitz. Engineering Director – Dam Morrill. Developer – Peisun Wu. Engineering Project Manager – Erick Tseng. Project Manager – Iliyan Malchev. Engineer – Mike Cleron. Software Manager – Per Gustafsson. Graphics Designer. – etc… LINK: http://www.youtube.com/watch?v=6rYozIZOgDk&eurl=http://www.android.com/about/&feature=player_embedded You will hear statements such as: “…currently it is too difficult to make new products … open software brings more innovation … choices … lower costs … enables the industry to create….more applications such as family planner, my taxes, … understand my wife better, … ” 6
  • 7. What is the Open Handset Alliance? A consortium of 80+ technology and mobile business companies. Quoting from www.OpenHandsetAlliance.com site (2/25/2012) 7 “ … Today, there are 1.5 billion television sets in use around the world. 1 billion people are on the Internet. But nearly 3 billion people have a mobile phone, making it one of the world’s most successful consumer products… Building a better mobile phone would enrich the lives of countless people across the globe. The Open Handset Alliance™ is a group of mobile and technology leaders who share this vision for changing the mobile experience for consumers …”
  • 8. Open Handset Alliance Members Operators Software Co. Commercializat. Semiconductor Handset Manf Bouygues Tele China Mobile China Telec. China Unicom KDDI Corp. NTT DoCoMo Softbank Sprint Nextel Telecom Italia Telefónica Telus T-Mobile ... Vodafone Ascender Corp. Borqs eBay Esmertec Google LivingImage NMS Comm. Nuance Comm. PacketVideo SkyPop … SONiVOX Accenture Aplix Astonishing Tribe Noser Engineering Omron Software Sasken Teleca … Wind River Systems ARM Atheros Audience Broadcom Corp. CSR Plc. Cypress Freescale Gemalto Intel Corp. Marvell Tech MediaTek MIPS Techn. Nvidia Corp Qualcomm Renesas Corp ST-Ericsson Synaptics Texas Instrum. Via Telecom ACER ASUS Dell Garmin HTC Kyocera Lenovo Mobile LG Motorola NEC Samsung Sharp … Sony Ericsson … Toshiba 8
  • 9. See Android Developers Short video (4 min.) Dave Bort and Dan Borstein, members of the Android Open Source Project talk about their experience. 9 http://www.youtube.com/watch?v=7Y4thikv-OM
  • 10. The Mobile Revolution Not so long ago … Today 1. Phone 2. Pager 3. PDA Organizer 4. Laptop 5. MP3 Portable music player 6. Wired modem 7. No Internet access / limited access 1. Smartphone 2. Laptop (perhaps!) 10 Tomorrow ? Electronic tools of a typical business warrior
  • 11. The Mobile Revolution Dreaming aloud I want my 2015 Smartphone to be … 1. Phone 2. Pager 3. PDA Organizer 4. High Quality Camera (still & video) 5. Portable music player 6. Portable TV / Video Player / Radio 7. Laptop 8. Play Station 9. GPS / Compass / Navigation (road & inside buildings) 10. Golf Caddy (ball retriever too) 11. Book Reader (I don’t read, It reads to me) 12. Electronic key (Car / Home / Office) 13. Remote Control (Garage, TV, …) 14. Credit Card / Driver’s License / Passport / Airplane Ticket 15. Cash 16. Cook, house chores 17. Psychologist / Mentor / Adviser 18. Personal trainer 19. Dance instructor 20. ???? 11
  • 12. Android vs. OS Competitors 12 1.Apple Inc. 2.Microsoft 3.Nokia Symbiam 4.Palm & webOS 5.Research In Motion vs.
  • 13. Android Software/Hardware Components • Dalvik virtual machine • Integrated browser (WebKit) • Graphic Capabilities (hardware acceleration) • SQLite for structured data storage • Media support (audio/video) • GSM Telephony (hardware dependent) • Bluetooth, EDGE, 3G, 4G, and Wi-Fi (hardware dependent) • Camera, GPS, compass, and accelerometer (hardware dependent) • Software Development Tools & Application framework (device emulator, debugging, profiling, plugin for the Eclipse IDE, resource managers) 13
  • 15. Android Components 15 Video 1/3: Android’s Architecture Presented by Mike Cleron, Google Corp. (13 min) Available at: http://www.youtube.com/watch?v=QBGfUs9mQYY
  • 16. Android Components 16 Video 2/3: Application’s Life Cycle Presented by Mike Cleron, Google Corp. (7 min) Available at: http://www.youtube.com/watch?v=fL6gSd4ugSI&feature=channel
  • 17. Android Components 17 Video 3/3: Andoid’s API Presented by Mike Cleron, Google Corp. (8 min) Available at: http://www.youtube.com/watch?v=MPukbH6D-lY&feature=channel
  • 18. Android Application Framework Video: Inside the Android Application Framework (about 52 min) Presented by Dan Morrill – Google At Google Developer Conference San Francisco - 2008 Available at: http://sites.google.com/site/io/inside-the-android-application-framework 18 Android is designed to be fast, powerful, and easy to develop for. This session will discuss the Android application framework in depth, showing you the machinery behind the application framework. explains the life-cycle of an android apk. very good!
  • 19. Android Support - Education Video: Android Development Tools (about 60 min) Google 2011 Developer Conference San Francisco Presented by • Xavier Ducrohet, tech-lead for the Android SDK and Developer Tools. • Tor Norbye, engineer on the Android SDK team working on visual tools for Android development. LINK: http://www.google.com/events/io/2011/sessions/android-development-tools.html 19
  • 20. Android Components Video: An Introduction to Android (about 52 min) Presented by Jason Chen – Google At Google Developer Conference San Francisco - 2008 Available at: http://www.youtube.com/watch?v=x1ZZ-R3p_w8 20
  • 21. Dalvik Virtual Machine Video (61 min) Dalvik VM Internals Presented by Dan Borstein At Google Developer – 2008 San francisco Available at: http://www.youtube.com/watch?v=ptjedOZEXPM 21
  • 22. Android Intents • An Intent is a request for services. • An Intent is made up of various pieces including: – desired action or service, – data, and – category of component that should handle the intent and instructions on how to launch a target activity. 22
  • 23. Example of Built-In Android Intents 23 Action Data The general action to be performed, such as: ACTION_VIEW, ACTION_EDIT, ACTION_MAIN, etc. The data to operate on, such as a person record in the contacts database, expressed as a Uri.
  • 24. Intents 24 Some examples of Intent’s action/data pairs are: ACTION_VIEW content://contacts/1 -- Display information about the person whose identifier is "1". ACTION_DIAL content://contacts/1 -- Display the phone dialer with the person filled in. ACTION_VIEW tel:123 -- Display the phone dialer with the given number filled in ACTION_DIAL tel:123 -- Display the phone dialer with the given number filled in. ACTION_EDIT content://contacts/1 -- Edit information about the person whose identifier is "1". ACTION_VIEW content://contacts/ -- Display a list of people, which the user can browse through.
  • 25. Example1: Java + Built-in Intent The following fragment calls an Intent whose job is to invoke a built-in task (ACTION_VIEW) and explore the Contacts available in the phone. Intent myIntent = new Intent( Intent.ACTION_VIEW, Uri.parse("content://contacts/people")); startActivity(myIntent); 25
  • 26. Example1: Built-in Intent Intent uses ACTION_VIEW to see Contacts. 26
  • 27. Example1: Built-in Intent Complete code to see Contacts. 27 public class AndDemo1 extends Activity { /** show contact list */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Intent myIntent = new Intent( Intent.ACTION_VIEW,Uri.parse( "content://contacts/people")); startActivity(myIntent); } }
  • 28. Pieces of an Android Application Structure of a typical Android Application 28
  • 29. Android Manifest xml File • Every application must have an AndroidManifest.xml file (with precisely that name) in its root directory. • The manifest presents essential information about the application to the Android system, information the system must have before it can run any of the application's code. 29
  • 30. Android Manifest xml File <action> <activity> <activity-alias> <application> <category> <data> <grant-uri-permission> <instrumentation> <intent-filter> <manifest> <meta-data> <permission> <permission-group> <permission-tree> <provider> <receiver> <service> <uses-configuration> <uses-library> <uses-permission> <uses-sdk> 30 These are the only legal elements; you cannot add your own elements or attributes.
  • 31. Android Manifest xml File Among other things, the manifest does the following: – It names the Java package for the application. The package name serves as a unique identifier for the application. – It describes the components of the application — the activities, services, broadcast receivers, and content providers that the application is composed of. – It names the classes that implement each of the components and publishes their capabilities (for example, which Intent messages they can handle). These declarations let the Android system know what the components are and under what conditions they can be launched. – It determines which processes will host application components. – It declares which permissions the application must have in order to access protected parts of the API and interact with other applications. – It also declares the permissions that others are required to have in order to interact with the application's components. – It lists the Instrumentation classes that provide profiling and other information as the application is running. These declarations are present in the manifest only while the application is being developed and tested; they're removed before the application is published. – It declares the minimum level of the Android API that the application requires. – It lists the libraries that the application must be linked against. 31
  • 32. Android Manifest xml File <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="matos.earthquake" android:versionCode="1" android:versionName="1.0.0"> <application android:icon="@drawable/yellow_circle" android:label="@string/app_name"> <activity android:name=".AndQuake" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".SatelliteMapping"> </activity> <service android:name="AndQuakeService" android:enabled="true" > </service> <receiver android:name="AndQuakeAlarmReceiver" > <intent-filter> <action android:name = "ALARM_TO_REFRESH_QUAKE_LIST"/> </intent-filter> </receiver> </application> <uses-library android:name="com.google.android.maps" /> <uses-permission android:name="android.permission.INTERNET" /> </manifest> 32
  • 33. Example2. Currency converter Implementing a simple currency converter: USD – Euro – Colon (CR) Note. Naive implementation using the rates 1 Costa Rican Colon = 0.001736 U.S. dollars 1 Euro = 1.39900 U.S. dollars 33
  • 35. Example2. Currency converter 35 package matos.currencyconvereter; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class Currency1 extends Activity { // naive currency converter from USD to Euros & Colones final double EURO2USD = 1.399; final double COLON2USD = 0.001736; // GUI widgets Button btnConvert; Button btnClear; EditText txtUSDollars; EditText txtEuros; EditText txtColones;
  • 36. Example2. Currency converter 36 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // bind local controls to GUI widgets txtUSDollars = (EditText)findViewById(R.id.txtUSDollars); txtUSDollars.setHint("Enter US dollars"); txtEuros = (EditText)findViewById(R.id.txtEuros); txtColones = (EditText)findViewById(R.id.txtColones); // attach click behavior to buttons btnClear = (Button)findViewById(R.id.btnClear); btnClear.setOnClickListener(new OnClickListener() { // clear the text boxes @Override public void onClick(View v) { txtColones.setText(""); txtEuros.setText(""); txtUSDollars.setText(""); } });
  • 37. Example2. Currency converter 37 // do the conversion from USD to Euros and Colones btnConvert = (Button) findViewById(R.id.btnConvert); btnConvert.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { String usdStr = txtUSDollars.getText().toString(); double usd = Double.parseDouble( usdStr ); String euros = String.valueOf( usd / EURO2USD ); String colones = String.valueOf( usd / COLON2USD ); txtEuros.setText(euros); txtColones.setText(colones); } catch (Exception e) { Toast.makeText(v.getContext(), "Invalid data - try again" , Toast.LENGTH_SHORT).show(); } } });// setOnClick... }// onCreate }// class
  • 39. Example2. Currency converter 39 Resource: res/ layout/main.xml (1/2) <?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/widget47" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/r es/android" > <TextView android:id="@+id/caption1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Currency Converter v0.01" android:textSize="18sp" android:textStyle="bold" > </TextView> <TextView android:id="@+id/greenFiller1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#ff006666" > </TextView> <AbsoluteLayout android:id="@+id/absLayout" android:layout_width="316px" android:layout_height="308px" android:background="#ff003399" > <TextView android:id="@+id/usdCaption" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="US Dollars" android:layout_x="40px" android:layout_y="15px" > </TextView> <EditText android:id="@+id/txtUSDollars" android:layout_width="150px" android:layout_height="wrap_content" android:layout_x="130px" android:layout_y="10px" > </TextView>
  • 40. Example. Currency converter 40 Resource: res/ layout/main.xml (2/2) <EditText android:id="@+id/txtEuros" android:layout_width="150px" android:layout_height="wrap_content“ android:layout_x="130px" android:layout_y="70px" > </EditText> <TextView android:id="@+id/colonCaption" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Colones(CR)" android:layout_x="40px" android:layout_y="135px" > </TextView> <EditText android:id="@+id/txtColones" android:layout_width="150px" android:layout_height="wrap_content“ android:layout_x="130px" android:layout_y="130px" > </EditText> <Button android:id="@+id/btnConvert" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text=" Convert " android:layout_x="10px" android:layout_y="190px" > </Button> <Button android:id="@+id/btnClear" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text=" Clear " android:layout_x="90px" android:layout_y="190px" > </Button> </AbsoluteLayout> </LinearLayout>
  • 41. Example. Currency converter 41 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="matos.currencyconvereter" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Currency1" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="3" /> </manifest>
  • 42. 42 42 APPENDIX The Size of the Mobile Market Reference: http://gizmodo.c om/5489036/cell phone-overshare
  • 43. The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 43 4 bn Mobile Phone worldwide (half the population of the planet) 1.5bn Televisions worlwide 1.4bn Internet users worldwide 480 m Papers 2009 Mobile market compared to other technologies 48.7% News and Sport Information 20.21% Social Networking 11.94% Entertainment News 7.13% Traded Stocks and Financial 6.69% Movie information 5.33% Business Directory Content accessed from mobile phones
  • 44. $600 bn Voice $130 bn Messaging $70 bn Non-messaging 2009 Mobile Revenue The $ize of the Mobile Market – 2009 44 Revenue Year 2009 Microsoft $78bn Toyota Motors $204bn Exxon Mobil $301bn Extracted from: http://gizmodo.com/5489036/cellphone-overshare http://www.microsoft.com/investor/reports/ar09/10k_fr_bal.html Exxon Mobil 2009 Summary Annual Report 2010 Toyota Annual Report (pp 12) Revenue is the collective amount of income made by a company (usually from the sales of goods & services)
  • 45. The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 45 97.57% Google 1.94% Yahoo 0.63% Other 0.25% Ask 0.11% MSM 2.43% 2009 Mobile Search Market
  • 46. 46 46 Appendix. The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 46 3.05 bn SMS users worldwide 2.6 SMS per day per person world average the most used written communication tool of the planet 600 m IM users worldwide 1.3 bn Email users worldwide 2009 How SMS compares as a text communication application
  • 47. The Size of the Mobile Market – 2009 Extracted from: http://gizmodo.com/5489036/cellphone-overshare 47 51% Symbian 19% RIM 13% iPhone 9% Windows 6% Other 2% Android 2009 Mobile Operating System Market Share Worldwide
  • 48. 48 The Size of the Mobile Market – Q2 / 2010 Extracted from: http://www.businessinsider.com/android-iphone-market-share-2010-8 48 Google 17% Nokia 41% Apple 14% RIM 18% Microsoft 5% Others 5%
  • 49. 49 The Size of the Mobile Market – Q4 / 2010 Extracted from http://www.canalys.com/pr/2011/r2011013.pdf 49 Google 32.9% Nokia 30.6% Apple 16.0% RIM 14.6% Microsoft 3.1% Others, 2.9% Combined sales in Q4 300 million units
  • 50. 50 The Size of the Mobile Market – Q2 / 2011 Extracted from http://www.channelinsider.com/c/a/Messaging-and-Collaboration/Android-Smartphone-Marketshare-Grows-NPD-Report-469609/ 50 Android, 52% iPhone , 29% RIM, 11% Windows, WebOs, 5% Others, 3%
  • 51. 51 A Few New Products for 2011 -13 51 Motorola Atrix 4G (ATT Store) Dual-core processor - 1 GB RAM Tablet Google Glasses Samsung Smartwatch
  • 52. Cell-Phone Diffusion 52 Dr. Lyza Lyth Mama Justine & Children Mount Kilimangaro Tanzania, October 2010
  • 53. 53 Thanks for being here Questions?
  • 54. 54 Bibliography: 1. Android Developers. http://developer.google.com/index.html 2. Professional Android Application Development by Reto Meier ISBN: 978- 0-470-34471-2. Wrox Publications, 2008. 3. Unlocking Android by Frank Ableson, Charlie Collins, and Robi Sen. ISBN 978-1-933988-67-2. Manning Publications, 2009. 4. Professional Android 2 Application Development (Wrox Programmer to Programmer) by Reto Meier. ISBN-10: 0470565527. Wrox Pub. 2010. 5. The Busy Coder's Guide to Advanced Android Development by Mark Murphy. ISBN ISBN: 978-0-9816780-5-4. CommonsWare Pub. 2012. 6. Android Programming Tutorials by Mark Murphy. ISBN ISBN: 9 ISBN: 978- 0-9816780-7-8. CommonsWare Pub. 2011.