我有以下代码:publicSensorEventListenersensorEventListener=newSensorEventListener(){@OverridepublicvoidonSensorChanged(SensorEventevent){floatpressure_value=0.0f;floatheight=0.0f;if(Sensor.TYPE_PRESSURE==event.sensor.getType()){pressure_value=event.values[0];height=SensorManager.getAltitude(SensorManag