code: def init_widget(self):
          
          super(AndroidDrawerLayout, self).init_widget()
          d = self.declaration
          if d.title:
              self.set_title(d.title)
          if d.drawer_elevation:
              self.set_drawer_elevation(d.drawer_elevation)
          if d.lock_mode:
              self.set_lock_mode(d.lock_mode)
          if d.scrim_color:
              self.set_scrim_color(d.scrim_color)
          if d.status_bar_background_color:
              self.set_status_bar_background_color(d.status_bar_background_color)
docs: Initialize the underlying widget.