Now days one of the major influencing factor in the market of smart phones or mobile phones is Android. This platform is very friendly and comfortable as it is based on java programming which is very easy to learn and perform.

The Software Development Kit (SDK) is very helpful for the developers. There are readymade codes for making this application. The Android SDK is evolving continuously and every version of the SDK has got something new and different. This makes application development task very easy for the developer. There many version for released for Android OS system which are 1.1, 1.5, 1.6, 2.0, 2.0, 2.1.

Android Software Development Kit has various tools, which are helpful android developers to create any android application. Below are that different tools:-

Android Development Tools Plug-in

• Android Emulator
• Android Virtual Devices (AVDs)
• Hierarchy Viewer
• layout opt
• Draw 9-patch
• Dalvik Debug Monitor Service (ddms)
• sqlite3
• Trace view
• Mksd card
• dx
• UI/Application Exerciser Monkey
• zip align

Application Framework : the developers have full access to the same framework APIs used by applications base. The architecture of the Android Application is designed to simplify the reuse of components, any application can publish its capabilities and any other application can then make use of those capabilities (subject to safety rules framework). This same mechanism allows components to be replaced by the user.This same mechanism allows components to be replaced by the user.

Benefits:-

• This is a unique platform that allows developers to build unique, creative applications
• · Android mobile phone OS is based on Linux kernel and its development platform is multitasking, which means any application can run on the Smartphone simultaneously without affecting the performance.
• It build device are fully customizable as the user requirement.
• Mobile Application Development platform provide large variety of libraries and useful tools that can be used to build up most creative and sophisticated mobile apps.
• This platform pre-built of tools dramatically increases the productivity of developers and help them to build or design function rich faster.
• · Camera, GPS, compass and accelerometer
• · Optimized graphics
• · Rich development environment
• · Application framework
• · Bluetooth, EDGE, 3G and WiFi
• · SQLite
• · Media support
• · GSM telephony
• · Integrated browser