How to be familiar with android UI design quickly?

I am newbee for android app dev, but I have experience about HTML/JAVA for many years.
Do you also feel android UI design is very complex to learn? I mean there're too many properties of view to know, I can't get the usage according the name easily.. eg:in TextView:elippsize, duplicateParentState,fadingEdge..
I feel my HTML experience is useless in here...any work around suggest for me? or I should just reading SDK step by step? thanks!