Mobile Development

Name: SaurabhSoftware Developer

Location

It’s yours, its personal, it’s never shared, even with..

It’s always on, until the battery runs out...

It’s always with you, until you loose it...

It is at the point of consumption, unless you forget it...

Providing personalisation, location, attention...

Platforms ?

M O B I L E

P L A T F O R M

Who Owns/ maintains it ?

Distribution Channel

Development Tools

Development Language

OS Architecture

Creating a Twitter app

http://twitter.com

One time Authentication

(OAuth)

Splash Screen

Twitter Feed

Settings

Remove Account

Post TwitI love

Android…

Post

Activity

List Activity

TWITT TWIT !!!

HELLO !

Linear Layout, Relative Layout, Table Layout, …

Button, Textbox, List, Image, …

ForegroundLifeCycleVisible LifeCycle

Complete LifeCycle

onCreate

onDestroy

onStart

onStop

onResume

onPause

HOW TO DISPLAY A LIST IN ANDROID?

Lifecycle and ANR

AsyncTask

onPreExecute()

doInBackground()

onPostExecute()

Activity

onCreate()onStart()

onResume()

onPause()onStop()

onDestroy()

UI Thread

UI Thread

AsyncTask

Profile Name is aligned to the top and right of the image

Twit is aligned to the bottom and right of the image

Relative Layout

TechNext

iPhone and Android event on 11 June, register for free and enjoy the ride…

WORKING IN BACKGROUND?

Activity

void onCreate(){}

//called every startService()void onStartCommand(intent ){ if(intent == xyz){ doxyz(); }}

void onDestroy(){}

startService

Action = xyzData = 123

Intent

Service

Activity

void onCreate(){}

//called every startService()void onStartCommand(intent ){ if(intent == xyz){ doxyz(); }}

void onDestroy(){}

bind

<<ISocialService>>

List<Twit> getSocialFeed();

Instanceof ISocialService

Interact with api calls

KEEPING YOURSELF

Am I low on disk space?

Network is Wifi or Network is 3G?

Has my application broadcasted some event?

Am I on Roaming ?

Is my battery dying?

Battery Indicator50%

IntentData:

level-50

BoadcastReceiver

Activity

registerReceiver(BroadcastReceiver)

onReceive(Intent)

SCHEDULING ACTIONS

AlarmManager setRepeatingRepeating

Task

5000 milliseconds

Trigger after 5 seconds

Pending Intent

“I have always wished that my computer would be as easy to use as my telephone. My wish has come true. I no longer know how to use my telephone.” -Bjarne Stroustrup

TWITTER CODE AND ALL CODE SHOWN HERE IS AVAILABLE HERE

https://code.google.com/p/droidtwit/