Android Text highlighter

Hello All

Is it possible to highlight the text in android word by word in regular interval of time.if yes, then how to achieve this..

I had al开发者_如何学编程ready worked for this and got success in highlighting the paragraph line by line instead word by word by using spannable class but the code become more lengthy and i think it may become unmanageable if done word by word.

Any appropriate solution or idea about how to do this in better way.Thank in advance

-Gourav