main.py 文件源码

def select_overview_subtab(self):
        """
        Selects the overview sub tab.
        """
        # this is what we would normally do:
        # tab_manager.current = 'overview'
        # but instead we need to simulate the click on the
        # navigation bar children or the associated screen button
        # would not have the selected color
        overview_bnavigation = self.overview_bnavigation
        navigation_bar = overview_bnavigation.children[0]
        boxlayout = navigation_bar.children[0]
        nav_headers = boxlayout.children
        # the overview is the first/last button
        overview_nav_header = nav_headers[-1]
        overview_nav_header.dispatch('on_press')