compass.py 文件源码

def toggle_state(self):
        try:
            if not self.sensorEnabled:
                rotation.enable()
                Clock.schedule_interval(self.get_readings, 1 / 20.)

                self.sensorEnabled = True
                self.compass_status = "Stop compass"
            else:
                rotation.disable()
                Clock.unschedule(self.get_readings)

                self.sensorEnabled = False
                self.compass_status = "Start compass"
        except NotImplementedError:
            import traceback

            traceback.print_exc()
            self.compass_status = self.NOT_IMPLEMENTED