kprogress.py 文件源码

def show(self):
            self.body = Popup(title="Test progress:", content=self,
                              auto_dismiss=False, size_hint=(.7, .5),
                              on_dismiss=self.dismiss_callback)
            self.body.open()

            self.thread = threading.Thread(target=self.retrieve_callback,
                                           args=(self._tick,))
            self.thread.start()