What should be in android apps developer?

• "Android Apps Basics".  
  
• Android is gaining more and more popularity nowadays. Every fresher mobile developer wants to know about android and also about what should be in fresher android apps. developer.
• Before start thinking on Android apps development We should be well versed in Core Java concepts and off-course in Oops concepts also. 
• So start thinking after that on some android stuff. for that we can able to know what is android? how we use it as a Mobile apps development? and also Do start searching over internet resources and we will definitely find out some interesting new things which we want to know...
• So For Learning Android our first step is to visit site... 
• http://developer.android.com/guide/basics/what-is-android.html ,This link includes all new and old things about android. and be able to understand what is written in site about android contents.
• After that understand the Features, Architecture, Application Framework, etc... 
• http://developer.android.com/guide/topics/fundamentals.html , just go through this link and you will able to easily understand what is the whole fundamentals concepts behind android.
• But the actual Question is still pending What should be in android apps developer?...
• So the answer is given below as per my thinking and I followed these way also...
• [I]   Develop your working environment for android apps development for that we    required Eclipse Latest Compatible version  for android SDK.                                       
• [II]  We need to download Android SDK. (download it from above site link)
• [III] Install latest JAVA JDK. (install JDK not only JRE) Because of only JRE is not installed whole java in your computer. Main difference between JRE and JDK is that JDK is used for Developing Java Programs and JRE is used for Running java programs which is already available in every computer by Operating System). 
1. After that follow the instructions written on Android Developer sites. and set up your development environment. If you facing any problem while setting up Ask me may I solve your problem.
2. After that start developing your First Hello World app in eclipes .....
• for that Go to File -> New-> AndroidProject and create new project on android by entering details about your apps.     

 What is Activity? 

"Relation between Activity and View"

Defines a View to be displayed in its window, Its a presentation layer. Activity
is Screen which user uses it for input. An
application can have more than one activity. Each activity extends android.app.Activity, onCreate() method is overridden to create a user view - the actual layout is displayed over here.

What is View? 

A View is the visible part of the activity

Defined in an XML layout file (or in code)

What is Intent?

Starts another activity ("opens a new window")

Can pass data to the started activity

Can even start activities from another app

 What is Services?
Services runs in background and without user-interface. It extends service class. Typically used to run a services that need to be running even if the screen is closed
 

"The new Android Project created the above files and folders"

 Structure of Android Manifest.XML file

 I will be back with Further more content on this [Coming Soon...]