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Getting start on Android - By Amit Yadav

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Topics coveredWhy Android?Introduction to AndroidHow to get started?EmulatorDive inResource availableQ&A

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Why Android?Open market placeInstant publishing & feedbackYou can create anythingCreate background apps(mail notifications, FBupdates, twitter etc)

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Why Android? (cont…)Develop on ANY platform FREE Windows Linux Mac

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Introduction to AndroidOpen software platform for mobile developmentA complete stack – OS, Middleware, ApplicationsAn Open Handset Alliance (OHA) projectPowered by Linux operating systemFast application development in JavaOpen source under the Apache 2 license

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Why Android? (cont…)Android can run on multiple platforms Mobiles Notebook Desktop

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Android Architecture

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Linux KernelWorks as a HAL(H/w Acceleration Layer)Device driversMemory managementProcess managementNetworking

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LibrariesC/C++ librariesInterface through JavaSurface manager – Handling UI Windows2D and 3D graphicsMedia codecs, SQLite, Browser engine

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Android RuntimeDalvik VM Dex files Compact and efficient than class files Limited memory and battery powerCore Libraries Java 5 Std edition Collections, I/O etc…

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Application FrameworkAPI interfaceActivity manager – manages application life cycle.

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ApplicationsBuilt in and user appsCan replace built in apps

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How to get started? (cont…)Things to start with Java Developer Kit(JDK) Eclipse Android SDK Android Developer Tool(ADT)

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How to get started? (cont…)

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Emulator

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Dive in…Create new Android Application Project Application Name Project Name Package Name Minimum Required SDK Target SDK Compile With Themeandroid create project --target <target-id> --name MyFirstApp --path <path-to-workspace>/MyFirstApp --activity MainActivity --package com.example.myfirstapp

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Dive in…(Application Building Blocks)AndroidManifest.XMLActivitiesViews & ViewGroupIntentsServicesNotificationsContent Providers

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Dive in…(Manifest File)The manifest file describes the fundamental characteristics ofthe app and defines each of its components.

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Dive in…(Activities)This represents the presentation layer of an AndroidApplication e.g. a screen which user sees.An Android app can have several activities and theapp can switch between these activities duringruntime

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Dive in…(Views & ViewGroup)Views are basic building blocksViews object are usually UI widgets(buttons, text fieldetc)ViewGroups are invisible containersOrganized as tree to build the GUIDescribed as an XML in the layout resource

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Dive in…(Intents)Intents are used to move from Activity to ActivityDescribes what an application wantsProvides late runtime bindings

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Dive in…(Services)They run in the backgroundThey don’t interact with usersRun on the main thread of the processIs kept running as long as Is Started Has Connections

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Dive in…(Notifications)Notify the users about the eventsNotificationManager is used for this purposeTypes Persistent icon Turning LEDS Sound or Vibrations

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Dive in…(Content Providers)ContentProviders are objects that can Retrieve Data Store DataData is available for all the applicationsOnly way to share data across packagesBackend is SQLite

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Resource availablehttp://androidcore.com/home.html Here you can find more than 300tutorial for android this is the best site for android.http://www.androidpeople.com/android-tutorial/ This is the anothergood site for android.http://developer.android.com This is site here you find all thedocumentation of Android.http://en.wikipedia.org/wiki/Android_(operating_system) This is the linkof Wikipedia for Androidhttp://www.vogella.de/articles/Android/article.html#overview This is theanother good site for Android Development.http://www.pdftop.com/ebook/android+tutorial/ This is the link hereyou find lot of book related to Androidhttp://code.google.com/p/android-wheel/ This is the side here you findsource code of the projects.

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Q&A No questions please!!!