Please go through following URL

http://developer.android.com/resources/browser.html?tag=tutorial

It will be great help for you :)

If you want to control behavior of any particular component in an
activity, you have to find the component first by using id of that
particular component,for that you will be using
findViewById(R.layout.id) method.

And hence, you have to declare that id first inside a layout xml by
using android:id .

Have fun.


On Jul 22, 5:46 pm, adithya holla <[email protected]> wrote:
> can anyone please explain what is the use of android:id and
> findviewbyid ..im still a beginner and dont exactly know how to start
> learning android programming..help please

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