pub fn active_view_mut(&mut self) -> Option<&mut dyn View> {
        if let Some(k) = self.current_id.as_ref() {
            self.map.get_mut(k).map(|v| &mut**v)
        } else {
            None
        }
    }
/// Returns a mutable reference to the underlying view.
Returns a mutable reference to the underlying view.
Returns a mutable reference to the underlying view .
pub fn active_view_mut(&mut self) -> Option<&mut dyn View> {
        if let Some(k) = self.current_id.as_ref() {
            self.map.get_mut(k).map(|v| &mut**v)
        } else {
            None
        }
    }
pub fn active_view_mut ( & mut self ) -> Option < & mut dyn View > { if let Some ( k ) = self . current_id . as_ref ( ) { self . map . get_mut ( k ) . map ( | v | & mut * * v ) } else { None } }
Returns a mutable reference to the underlying view.
Returns a mutable reference to the underlying view .
&mut self