Hi guys am new to android programming.
am trying to create a game.

Consider the flower bracket ({) as my screen.
(||||) lines as a wall.

{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{}
{ }
{ |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| }
{ | }
{ | }
{ ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| }
{ }
{ }
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{}

how to detect collision if i touch wall assume i have ball moving on the screen.
how to make a rectangular bound for bitmap?

All ideas and advice are appreciated.

Don't think of this as an android specific problem. Your question isn't very clear, but if you're looking for collision detection and physics there is a nice android port of box2d.
http://code.google.com/p/androidbox2d/

As for the "rectangular bound bitmap," I'm unsure of what you're talking about. Rendering is done with Opengl ES and is pretty much the same as Opengl.
Take a look at andEngine, It'll make development alot easier if you're a novice.
http://www.andengine.org/

GameGeazer

Thanks a lot for the links.