Android Code Snippet Full Screen Theme

Setting these two attributes will cause your app to run in full screen:

#FullScreen: true
#IncludeTitle: false

However the action bar will appear for a short moment when your app starts.

You can use this theme to prevent it from appearing:

SetApplicationAttribute(android:theme, "@style/DarkTheme")
CreateResource(values-v20, theme.xml,
<resources>
    <style
        name="DarkTheme" parent="@android:style/Theme.Material.NoActionBar.Fullscreen">
    </style>
</resources>
)
CreateResource(values-v14, theme.xml,
<resources>
    <style
        name="DarkTheme" parent="@android:style/Theme.Holo.NoActionBar.Fullscreen">
    </style>
</resources>
)

Make sure to remove the default theme:

CreateResourceFromFile(Macro, Themes.DarkTheme) 'remove this line

 

[LucaMs]

Allow me to add a link to other useful source code:
https://www.b4x.com/android/forum/threads/immersive-mode-hide-the-navigation-bar.90882/