Specifies that windows besides app windows should not be created. This will block the creation of the following types of windows. Android.Views.WindowManagerLayoutParams.TYPE_TOASTAndroid.Views.WindowManagerLayoutParams.TYPE_PHONEAndroid.Views.WindowManagerLayoutParams.TYPE_PRIORITY_PHONEAndroid.Views.WindowManagerLayoutParams.TYPE_SYSTEM_ALERTAndroid.Views.WindowManagerLayoutParams.TYPE_SYSTEM_ERRORAndroid.Views.WindowManagerLayoutParams.TYPE_SYSTEM_OVERLAY
This can only be set by device owners and profile owners on the primary user. The default value is false.
Key for user restrictions.
Type: Boolean