ANDROID. Prasanna Kumar Dixit Director, Interface Software, Bhubaneswar, Odisha, India. VIKAS PUBLISHING HOUSE PVT LTD

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4 ANDROID Prasanna Kumar Dixit Director, Interface Software, Bhubaneswar, Odisha, India. VIKAS PUBLISHING HOUSE PVT LTD

5 VIKAS PUBLISHING HOUSE PVT LTD E-28, Sector-8, Noida (UP) India Phone: Fax: Registered Office: 576, Masjid Road, Jangpura, New Delhi , India Website: ww.vikaspublishing.com Ahmedabad: 305, Grand Monarch, 100ft Shyamal Road, Near Seema Hall, Ahmedabad Ph , Bengaluru : First Floor, N.S. Bhawan, 4th Cross, 4th Main, Gandhi Nagar, Bengaluru Ph , Chennai : E-12, Nelson Chambers, 115, Nelson Manickam Road, Aminjikarai Chennai Ph , Hyderabad : Aashray Mansion, Flat-G (G.F.), /8, Street No. 20, Himayath Nagar, Hyderabad Ph , Fax Kolkata : 82, Park Street, Kolkata Ph Mumbai : 67/68, 3rd Floor, Aditya Industrial Estate, Chincholi Bunder, Behind Balaji International School & Evershine Mall, Malad (West), Mumbai Ph , Patna : Flat No. 101, Sri Ram Tower, Beside Chiraiyatand Over Bridge, Kankarbagh Main Road, Kankarbagh, Patna Ph Android ISBN: First Edition 2014 Vikas is the registered trademark of Vikas Publishing House Pvt Ltd. Copyright Author All rights reserved. No part of this publication which is material protected by this copyright notice may be reproduced or transmitted or utilized or stored in any form or by any means now known or hereinafter invented, electronic, digital or mechanical, including photocopying, scanning, recording or by any information storage or retrieval system, without prior written permission from the publisher. Information contained in this book has been published by VIKAS Publishing House Pvt Ltd and has been obtained by its Authors from sources believed to be reliable and are correct to the best of their knowledge. However, the Publisher and its Authors shall in no event be liable for any errors, omissions or damages arising out of use of this information and specifically disclaim any implied warranties or merchantability or fitness for any particular use. Disputes if any are subject to Delhi Jurisdiction only. Printed in India iv

6 DEDICATED TO BIBLE RAMAYANA HOLY KORAN MAHABHARATA GURU GRANTH SAHIB AND ALL THE OTHER HOLY BOOKS AS NO BOOK CAN BE BETTER THAN THESE BOOKS.

8 PREFACE One is greater than zero: this is the motto behind this book. If some knowledge is gained after reading this book then it is more than zero, so my mission will be successful. Android is the in-thing in the market for everyone-young to old from; top to bottom; in India and the world. Developing the android application has become a; modern day past time. The purpose here is to say how simple the Android programming which can easily be developed. Now-a-days every web application is brought to the mobiles so that the information will on the finger tips. If we look at the market we find that the scope of Android is so huge that anyone who knows android applications can easily get a job. Due to all the above factors, Android is now a hot technology among the programmers. Companies like Samsung, LG, Sony, HTC etc are using Android extensively and are growing manifold. In the near future the market of Android will be much more that now. So Android is a movement that has moved the data from laptop to hand held devices like mobile. Competition for Android is there but is in the front runner in mobile technology by a long distance. Good knowledge in basic Java will help you to understand and develop the technology and Android apps. Many universities in India and across the world are now teaching Android in their syllabus which shows the importance of this subject. This book can be read by anyone who knows Java and XML concepts. This book is a step forward to do a plain Android example. This book is written with lot of diagrams with explanations which will help a student to understand fast. This book is also attached with a project, if any programmer tries to run that project will be greatly benifitted to learn Android professionally. It is always challenge to give a project in Android which I have tried to give. So it is a very useful book both for beginners and professionals. I shall be glad to hear from the users of the book so that the way forward to design a new edition for me becomes easier. I can be reached at pk_dixit@yahoo.com Prasanna Kumar Dixit vii

9 ACKNOWLEDGEMENT My acknowledgement goes to everyone who has come in my life: my Father-who taught me how to work hard, my Mother- who taught us love in different forms, my wife-who has taught me to be passionate and more romantic to the profession and given the internal energy and support, my daughters-so good with all day chatting and vibrancy which gives me the energy to do work, my brother-always helping me without any conditions, my sister-for giving and loving me with unconditional love, my neice and nephew-give me love like my daughters and sons. I thank all my teachers of unit-iv of Bhubaneswar, B.S High School Sundargarn, SCS College Puri and Institute of Engineers (Chennai). I specially thank the lecturers of ITER Odisha from where I have completed my M.Tech. Their dedication is fantastic. I specially thank Mr. Hemant kumar Pradhan (M. Tech.) from whom I got support in Android, Ms. Bijaya Bhatt (M. Tech.) whose inspiration in the topic is brilliant. Then come many persons who have helped me from time to time, thanks to them. Just to mention few of them, Lalto sir, Sambit, Sabyasachi who are another few persons who helped me in Android. Then come Swati, Sruti, Nibedita, Mahaprasad, Abhipsa, Sidhartha, Rosalin, Archana Sahoo, Abinash, Manisha, J.M.Pany, Sunil, Amit, Abhishek, and Aryan all of whom have been fantastic in their work. Most of the credit for this book goes to my students whom I am training as their response has encouraged me to write the book. Manas Pradhan is another name who has also helped me a lot. Finally thanks to almighty to give me courage to write this book. At last I have to give thank to Mr. Santosh Verma, Mr. Sunil Thakur, Mr. N.Poddar, Mr. Suvendu and the whole editorial team of Vikas for giving such a beautiful look to this book. Prasanna Kumar Dixit

10 CONTENTS 1. INTRODUCTION TO ANDROID OPERATING SYSTEM 1.1 What is Android? What is Open Handset Alliance? Android Ecosystem Why android??? Android versions Android Activity Features of Android Android Architecture: Stack Linux Kernel CONFIGURATION OF ANDROID ENVIRONMENT 2.1 Operating System Java JDK Android SDK Android Development Tools (ADT) Android Virtual Devices (AVDs) Emulators Dalvik Virtual Machine Difference between Java Virtual Machine (JVM) and Dalvik Virtual Machine (DVM) Steps To Install and Configure Eclipse and SDK 27 ix

11 3. CREATE THE FIRST ANDROID APPLICATION 3.1 Directory Structure ANDROID USER INTERFACE 4.1 Understanding the components of a screen Linear Layout Absolute Layout: Frame Layout: Relative Layout Table Layout DESIGNING YOUR USER INTERFACE WITH VIEW 5.1 TextView Button - A standard push button ImageButton EditText CheckBox ToggleButton RadioButton and RadioGroup Progress Bar Autocomplete TextView Spinner ListView GridView ImageView Scrollview Custom Toast Alert Time and Date Picker 109 x

12 6. ACTIVITY 6.1 Introduction Intent Intent _ filter Activity life cycle Broadcast Life cycle Service MULTIMEDIA 7.1 Android System Architecture Play Audio and Video Play Audio Text to Speech SQLITE DATABASE IN ANDROID 8.1 SQLite Database Why SQLite? Creation and connection of the database Extracting value from a Cursors Transactions TELEPHONING AND MESSAGING 9.1 SMS Telephony TELEPHONING AND MESSAGING 10.1 Creating the Project Getting the maps API key Displaying the zoom control Changing Views 209 xi

13 10.4 Navigating to a Specific Location Adding Markers Getting the Location which was touched Geocoding and Reverse Geocoding Getting Location Data Monitoring a Location JSON 11.1 What is JSON? XML and JSON Use of JSON Syntax and Rule of JSON JSON Name/Value Pairs JSON Values JSON objects JSON Arrays How to JSON uses JavaScript syntax Parsing JSON and XML Parsing JSON Http Response Parsing XML Http Response PROJECT ON TRAFFIC SURVEY 12.1 Description 240 xii

14 1 Introduction to Android Operating System What is Android? What is Open Handset Alliance? Android Ecosystem Why Android? Android Version Features of Android Architecture of Android Stack Overview Chapter Overview: In this chapter, a new learner will able to understand the history of Android, the architecture, framework and various tools which are used in Android framework. You will also learn about the Android system overview with topics like Preferences and various supported File System in Android. Operating Systems have developed a lot in last 15 years. It started from black and white phones to smart phones or mini computers. Nowadays one of the most widely used mobile OS is ANDROID.

2 Android Android Inc was founded in Palo Alto of California, U.S. by Andy Rubin, Rich Miner, Nick Sears and Chris White during 2003. After that it was acquired by Google in 2005. 1.1 What is Android?

1: Android Operating System Android is a Linux-based operating system which is designed for touchscreen mobile devices like smartphones and tablet computers.

15 2 Android Android Inc was founded in Palo Alto of California, U.S. by Andy Rubin, Rich Miner, Nick Sears and Chris White during After that it was acquired by Google in What is Android? Android is a stack of software for mobile devices that are an Operating System, Middleware and Key Applications. Figure 1.1: Android Operating System Android is a Linux-based operating system which is designed for touchscreen mobile devices like smartphones and tablet computers. It is an open source technology that allows the software to be freely modified and distributed by device manufacturers, wireless carriers and developers. Android was unveiled during 2007 along with the founding of the Open Handset Alliance. 1.2 What is Open Handset Alliance? Figure 1.2: Android Logo Open Handset Alliance (OHA) was formed in November 2007.The OHA is the group that is in charge of the Android smartphones operating system. It was created by Google. The Open Handset Alliance (OHA) is a business alliance that consists of 47 companies for developing open standard platform for

Android 20% OFF Publisher : SChand Publications ISBN : 9789325977884 Author :

16 Android 20% OFF Publisher : SChand Publications ISBN : Author : Prasanna Kumar Dixit Type the URL : Get this ebook

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DATA STRUCTURES Using C DATA STRUCTURES Using C Rohit Khurana Founder and CEO ITLESL, Delhi VIKAS PUBLISHING HOUSE PVT LTD VIKAS PUBLISHING HOUSE PVT LTD E-28, Sector-8, Noida-201301 (UP) India Phone: