I hide in this way ActionBar

<style name="AppTheme" parent="Theme.AppCompat.NoActionBar"> <!-- Customize your theme here. --> <item name="windowNoTitle">true</item> <item name="windowActionBar">false</item> </style> 

After that, it disappears, but the application stops working correctly, the essence of the application is WebView, and a couple of local pages are nothing complicated, the application loads, after the click, a black screen, although if you don’t hide the ActionBar

  • one
    Create a clean project. Make sure everything works in it. Look for a mistake where you did not tell us. - Yuriy SPb
  • I created, the problem is the same, the black background does not work with webView - zkolya
  • It sounds unbelievable ... Put your idle clean project on gitBub - I will look at it. But first, a couple of questions - a new studio, the second version? Does not work on the device or in the previewer? - Yuriy SPb

0