def init_layout(self):
        """ Add all child widgets to the view
        """
        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({})