Android ActionBar on Lollipop not styling correctly -

i designing app material design, having trouble styling actionbar.

first of all, can not actionbar render shadow. have tried setting elevation in multiple ways:

in styles.xml (v21):

<item name="android:elevation">4dp</item> <item name="elevation">4dp</item> 

in oncreate() method

getactionbar().setelevation(4); 

however, none of these result in actionbar rendering shadow. not sure if important, running android 5.0.1 lollipop. missing in trying render shadow? don't want make drawable shadow , set window background.

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secondly, actionbar buttons square, , when click on them, ripple cut off in square, while in other apps have used mask ripples has been circular, , app had been using round buttons, changed , don't know why. have accidentaly changed making them square?

thank you

the issue u use actionbar while other apps use toolbar. read , change code, should work after that.