Android: Distorted Background For Toolbar Icons, List Items And Overflow Menu

While developing an android app, i updated android studio and also android sdk. after that, i faced strange behavior. when clicking on any item like actionbar icons, overflow menu

Solution 1:

finally i found the answer after a week of challenging and asking here:

i was using android gradle plugin 2.2.0-alpha and the problem was rised from that. i didn't know that it can be the source of such problem.

after returning to gradle plugin 2.1.0 the problem solved!

Solution 2:

Try using android:stateListAnimator="@null" and android:background="@null" for the spinners and buttons