android application (presentation)
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Android Application
Development
Presentation ByAkash KhaitanId: 08DDCS547
FST,ICFAI University
Sevya It. Pvt. Ltd., HyderabadDuration : 5 Months 14 Days
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Project Goals Android Application development using
Android SDK & Java Platform
Understanding the lifecycle of ApplicationDevelopment
Getting full control over User Interface,Navigation, Multimedia
Game Development & Web AppDevelopment in Android
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Android is a softwarestack for mobile
devices that includesan operating system.
The Android SDKprovides the tools andAPIs necessary fordeveloping applicationsusing Java
Introduction
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Contents Architecture
Activity & Services
User Interface , Menus ,Navigation
Notifications
Data Storage Techniques
Multimedia
Game Development
Web Application Development
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ArchitectureAndroid architecture consists of
Kernal
Libraries
Runtime
FrameWork
Application
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Activity & Services An Activity is an
application componentthat provides ascreen with whichusers can interact
A service do not
provide a screen butruns in the backgroundand provides updatesto the UI thread
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User Interface The User Interface design is one of the
most important component in Android
Application Development. It consists Of : Layout Managers
TextView, EditText
Buttons, RadioButton ImageView, Bitmap
WebView
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Layout Managers
Linear Layout
Relative Layout
Frame Layout
Table layout
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Menus
Provides a familiar and consistent userexperience
One should use the Menu APIs to presentuser actions and other options in youractivities.
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Navigation Provides a better user experience
Makes the app more user intuitive
The Navigation components consists of
Tabs
Lists
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Tabs Presenting different Screens in a single page
using tabs
Steps Involved in creating Tab Create separate activities
Create layouts for activities
Define a layout for main tab activity In the tab activity, bind all the activities to
tab host using intents
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Lists A user can create a simple list and
custom list in android
Adapters are used here to bind the datawith the layout
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Notification Several types of situations may arise that
require you to notify the user about an eventthat occurs in application. Some events requirethe user to respond and others do not.
Types of Notification in android are :
Toast Notification
StatusBar Notification
Dialogs
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Toast Notification Toast.makeText(context,string,duration).
show();
The upper line creates a Toast which takescontext,desired string , time and displaysthe toast
Custom Toast can be created with
specified layout
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Dialogs Alert Dialog
Dialog with Buttons
Dialogs With List
Dialog with progress Bar
Custom Dialogs
To show a dialog show() method
Is used
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Data Storage Techniques Each and every application requires data
to be stored for further use
Android Provides following data storagetechniques
Shared Preferences
Internal Storage External Storage
SQLite Databases
Network Connection
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Shared Preferences Writing to Shared Preferences
Retrieving from Shared Preferences
SharedPreferences settings = getSharedPreferences("Mypref", 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString("text", text.getText().toString());
editor.commit();
SharedPreferences settings = getSharedPreferences("Mypref", 0);
String temp=settings.getString("text", "Unable to retrieve");
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Internal StorageWriting to Internal Storage
openFileOutput() returnsFileOutputStream object
Write to the file with write()
Close the stream with close()
Retrieving from Internal Storage
Call openFileInput() returns aFileInputStream.
Read bytes from the file with read().
Then close the stream with close().
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External StorageGet the External storage
File sdCard =
Environment.getExternalStorageDirectory();
Write to External Storage
Retrieve from External Storage
This are available to all the application asthey act as global data
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SQLite Database Create a class which extends
SQLiteOpenHelper
Create the database and define itsschema in the class
Get the writable database by calling
getWritableDatabase();
Get the readable database
getWritableDatabase();
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Multimedia The Android multimedia framework
includes support for capturing and playingaudio, video and images in a variety of common media types
Audio Playback
Tone Generator
MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.sound_file_1);mediaPlayer.start(); // no need to call prepare(); create() does that for you
tone = new ToneGenerator(AudioManager.STREAM_DTMF, 100); //Create
Tone Generator Object
tone.startTone(int tonetype,int duration in Ms); //Start tone with tone
type value and duration
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Mobile Web Applications Mobile web apps provide flexibility and code
reusability. The web apps made for desktopapplication can easily be converted to mobileweb apps with minimum efforts in doing the
same. Languages: HTML, CSS, JAVASCRIPT, JQUERY
Features that mobile apps should have are:
Linking with native libraries (Ex :camera, etc.) UI Look and feel like native application
(Buttons, Labels, etc.)
Navigation like native application (Screensliding, orientations, etc.)
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Game Development Android supports game development, as a
result of this several games can be foundin android Play. Some types of games inthe android are:
Accelerometer Based Games
Simple Canvas Based Games
3d Games
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ConclusionMy 5 and half months of training at Sevya provided me thoroughknowledge of Mobile Application Development includingBlackberry, Android and J2ME.
It helped me in understanding the complete life cycle of application development which starts from analytical phasefollowed by documentation phase and on verification goes toimplementation phase.
In my internship I worked in a team with Mr. Vineet Agarwal andMr. Kumar Raja Donthamsetti and developed some applicationswith reach controls and also some Gaming applications which Ialways dreamed off.
I got an opportunity to work as a graphic designer for which I usedOpen Source Gimp. I also got an opportunity to prepare somedocumentation and user manuals for the ongoing projects of Sevya.
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ReferencesAndroid Developers:(http://developer.android.com)
Google: (http://google.co.in)Wikipedia: (http://www.wikipedia.org/)
Mr. Narasayya Donepudi(Co-Founder at SevyaMultimedia)
Mr. Kumar Raja Donthamsetti (AssociateSoftware Engineer at Sevya Multimedia)
Mr. Vineet Agarwal (Software Engineer at SevyaMultimedia)