Android Application (Presentation)

7/31/2019 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)

Documents

Android Application (Presentation)