Android Question Bottom up Popup Drawer darken status and title

Sub ToggleDrawerState
    Dim Duration As Int = 100
    
    OverlayVisible = Not(OverlayVisible)
    Overlay.SetVisibleAnimated(Duration, OverlayVisible)
    
    Dim pnlBottomVisibleHeight As Int = pnlBottom.Height - 8dip 'hide bottom round corners
    
    If OverlayVisible Then
        SetActionBarColor(Colors.ARGB(150, 0, 0, 0))
        SetStatusBarColor( mixColors(Colors.ARGB(150, 0, 0, 0), Colors.black) )
        pnlBottom.SetLayoutAnimated(0, 0, pnlBottom.Parent.Height, pnlBottom.Width, pnlBottom.Height)
        pnlBottom.SetLayoutAnimated(Duration, 0, pnlBottom.Parent.Height - pnlBottomVisibleHeight, pnlBottom.Width, pnlBottom.Height)
    Else
        SetActionBarColor(Colors.Transparent)
        SetStatusBarColor(Colors.ARGB(150, 0, 0, 0))
        pnlBottom.SetLayoutAnimated(0, 0, pnlBottom.Parent.Height - pnlBottomVisibleHeight, pnlBottom.Width, pnlBottom.Height)
        pnlBottom.SetLayoutAnimated(Duration, 0, pnlBottom.Parent.Height, pnlBottom.Width, pnlBottom.Height)
    End If
End Sub

Sub SetStatusBarColor(Color As Int)
    'status
    Dim jo As JavaObject
    jo.InitializeContext
    Dim window As JavaObject = jo.RunMethodJO("getWindow", Null)
    window.RunMethod("addFlags", Array (0x80000000))
    window.RunMethod("clearFlags", Array (0x04000000))
    window.RunMethod("setStatusBarColor", Array(Color))
End Sub

Sub SetActionBarColor(Color As Int)
    'menu bar
    Dim jo As JavaObject
    jo.InitializeContext
    Dim cd As ColorDrawable
    cd.Initialize(Color, 0)
    jo.RunMethodJO("getActionBar", Null).RunMethod("setBackgroundDrawable", Array(cd))
End Sub