I've found a java awt class that called TextAttribute in android, see the link below:
http://developer.android.com/reference/java/awt/font/TextAttribute.html
but I don't know how it works, does anyone knows?
Thanks for your answers!
So, no one answered my question... :( Actually, I've found that there is no use of this class for android development, I've found no class refer it, it's probably a legacy of java AWT, I guess.