code: def init_layout(self):
          
          super(AndroidViewGroup, self).init_layout()
          widget = self.widget
          i = 0
          for child in self.children():
              child_widget = child.widget
              if child_widget:
                  if child.layout_params:
                      widget.addView_(child_widget, i,
                                               child.layout_params)
                  else:
                      widget.addView(child_widget, i)
                  i += 1
  
          # Force layout using the default params
          if not self.layout_params:
              self.set_layout({})
docs: Add all child widgets to the view