Android Material Design on KitKat (and lower) devices

Question

I\'m going to develop an android application in our school as a project.

I want to use the new Material Design by Google but i know its only available on Android-L Devi

Answer 1

appcompat v21 supports the toolbar on pre-lollipop devices as well.

You can check out Chris's blog for some help on this https://chris.banes.me/2014/10/17/appcompat-v21/

Of course, the elevation attributes does not work on pre-lollipop devices, so you need to implement custom shadow for version < 21. I would suggest a gradient drawable with height around 4dp works fine.