How to develop Android application

Android is the operating system designed for the mobile platform which is based on Linux operating system. Now a day’s, it is also used to develop android application for the tablet. For application development, It is most similar to java language.

Google Approach
Google describes Android as:
The first truly open and comprehensive platform for mobile devices, all of the software to run a mobile phone but without the proprietary obstacles that have hindered mobile innovation.

Android Application development.
For developing application for android mobile, we need to have knowledge of Java programming and some of XML.

Market Coverage of Android OS

Features :-

  • Layouts
    Android platform is supports to VGA, SVGA, 2D graphics library, 3D graphics library and also traditional smartphone layouts.
  • Security
    Each application developed in android will have secure file access feature so that other application can not make use of application data without permission.
  • Connectivity with other devices.
    Android supports connectivity with other device using technologies like GSM/EDGE, CDMA, UMTS, Bluetooth, Wi-Fi,  and WiMAX.
  • Java support (Dalvik Run Time Machine)
    While most Android applications are written in Java, there is no Java Virtual Machine in the platform and Java byte code is not executed. Java classes are compiled into Dalvik executables and run on Dalvik, a specialized virtual machine designed specifically for Android and optimized for battery-powered mobile devices with limited memory and CPU.
  • File Format
    3GP or MP4, MP3, WAV, JPEG, PNG, GIF, BMP etc. are the file format supported by android.
  • Video calling
    One of the most exciting features of android mobile is video calling via the UMTS network. Video calling through Google Talk is available in Android 2.3.4 and later.
  • Multitasking
    Multitasking of applications, with the unique handling of memory allocation, is available.

Android Architecture:-

Android Architectures will have following Layers

  • 1) Application Layer
    Implemented with Java and Dalvik Virtual Machine
  • 2) Application Framework
    Implemented with Java
  • 3) Libraries
    Implemented with C and C++
  • 4) Linux Kernel
    Hardware and File System
android application Layer

Android Mobile Version:-
Following chart show android OS version, it’s API Level and current distribution.

Version Codename API Level Distribution
1.5 Cupcake 3 0.2%
1.6 Donut 4 0.5%
2.1 Eclair 7 4.2%
2.2 Froyo 8 15.5%
2.3 – 2.3.2 Gingerbread 9 0.3%
2.3.3 – 2.3.7 10 60.3%
3.1 Honeycomb 12 0.5%
3.2 13 1.8%
4.0 – 4.0.2 Ice Cream Sandwich 14 0.1%
4.0.3 – 4.0.4 15

15.8%

4.1 Jelly Bean 16 0.8%

Table: Android Version and it’s API Level


Full android web application Tutorial:-

Introduction How to develop Android application

What are the Fundamental Units of Android Application

Step by Step Installation guid for android application developent

How to Build and Run the Android Application

Views in Android Application

Linear Layout in Android Application Development

Table Layout in Android Application

Relative Layout in Android Application

SQLite Database used in Android Application Development

Music Player Code for Android Application Development

How to make Phone call for Android Application with full code

Status Bar in Android Application Development with Full Code

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