What is Android?
Android is a mobile operating system which is based on linux kernel. Android operating system was developed by Andy Roubine in 2003. Andy Roubine had a team of developers who helped to develop android operating system. Andy Roubine’s team members are Rich Miner, Chris White and Nick Sears. Android Operating system is the most popular operating system for mobiles. Approx 85% peoples are use android devices. Android operating system is easy to use. Anybody can use easily android operating system. Android operating system has a lot of features who make it more attractive. Android operating system has many features for customization. You can customize your interface, services etc. Google acquired android operating system in 2005. And in 2007 HTC released first android smartphone. This mobile was run in cupcake android version. Android versions are given below:
|Name||Version||Release Date||Security Patches / Updates|
|Alpha||1.0||Sep 23, 2008||Unsupported|
|Beta||1.1||Feb 09, 2009||Unsupported|
|Cupcake||1.5||April 27, 2009||Unsupported|
|Donut||1.6||Sep 05, 2009||Unsupported|
|Éclair||2.0-2.1||Oct 26, 2009||Unsupported|
|Froyo||2.3-2.3.7||May 20, 2010||Unsupported|
|Honeycomb||3.0-3.2.6||Feb 22, 2011||Unsupported|
|Ice cream sandwich||4.0-4.0.4||Oct 18, 2011||Unsupported|
|Jellybean||4.1-4.3.1||July 9, 2012||Unsupported|
|KitKat||4.4-4.4.4||Oct 31, 2013||Supported|
|Lollipop||5.0-5.1.1||Nov 12, 2014||Supported|
|Marshmallow||6.0-6.0.1||Oct 5, 2015||Supported|
|Nougat||7.0-7.1.2||Aug 22, 2016||Supported|
|Oreo||8.0||Aug 21, 2017||Supported|
Android project Components:
Menifest: Menifest file is used to allow permissions, define activity location etc. It is an XML file which is automatically generates in a android project.
Activity: An activity is component in a android project which directly interacts with user. Each activity is makes a user interface for a application.
Java Class: In a android application we need a java class. It is automatic generates with a android project. Class file is used for backend coding of an activity.
Android Virtual Device (AVD): Android virtual device is a virtual android device. It is used for test our android application. We can run easily android application in our computer.
Career in Android Development: As we know that android is a fastest growing industry at this time. We know that 85% population is using android devices. According a report android is covering 85% market share. Android has 2.6 million apps in Google play store. Android has 1.4 billion android users and these values are increasing day by day. According a report salary of a android developer is $49,000 to $121,000 in US dollar. This salary increases every year according to developers work experience. As we know that android is a open source operating system so we can easily learn android development . Android has a powerful development framework that is known as android studio.
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How can You Learn Android Development?
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