in July 2005, and became the leading developer of the Android OS. The Android operating system was first developed by Android, Inc. It is an open-source operating system based on the Linux kernel with applications developed using the java programming language. Android is developed in response to this trend. Transitioning from working with PCs to mobile devices such as smart phones and tablet computers has become a trend. Mobile devices have become ubiquitous and even more sophisticated than PCs.

Development in communication has been shrinking the world and thanks to the advancement of Wi Fi technologies, some developing countries are able to leapfrog into the twenty-first century without the burden of dismantling the infra structure and equipments of wired communication. This is a sample program, which display a cube and let it rotate by touch operation.Android Graphics 1 Introduction If you were not shut off from the world in the past year, you must have heard about Android.

THe information, which is required for rendering, is need to be defined within this methoid.

“onDrawFrame()” method is called when the frame is about being rendered.

Usually, the configuration of Viewport can be done with this class.

This method is called as the size of screen has been changed.

“OnSurfaceCreated() can be employed for recreating resources. If this happens, the resources are needed to be recreated for continuing its rendering process. As the context disappears, the resources, which tag to the context also disappear.

As the state of a device is shifted from sleep to resume, in some case, its context may be lost.

This method is called as a surface has been created.

A class that inherits from this class is needed to to be created, the new class has to be registered as (setRenderer()) to GLSurfaceView.

By touch-screen operations, shift and/or rotate the model, or change (enlarge/reduce) the size of the model.)

It is similar to View, it notes the handling of touch-screen operations.

It does trace and error checking as this is called.

It can handle continued rendering and on-demand rendering.

It puts specific threads, which are separated form UI threads.GLSurfaceView is a subclass of SurfaceView and is capable of processing OpenGL ES.As using OpenGL ES on Android, two classes are required One is “GLSurfaceView,” and the other is “GLSurfaceView.Renderer.” Briefly explain about these classes.

Glenableclientstate opengl es 2.0