screenwebview.py 文件源码

def key_back_handler(self, *args):
        if self.webview:
            if self.webview.canGoBack() == True:
                self.webview.goBack()
            else:
                Clock.schedule_once(self.detach_webview, 0)
        else:
            App.get_running_app().root.switch_screen()