Android_mars Learning note _s05_006_ Distance sensor

1 Importandroid.app.Activity;2 ImportAndroid.content.Context;3 ImportAndroid.hardware.Sensor;4 Importandroid.hardware.SensorEvent;5 ImportAndroid.hardware.SensorEventListener;6 ImportAndroid.hardware.SensorManager;7 ImportAndroid.os.Bundle;8 9  Public classMainactivityextendsActivityImplementsSensoreventlistener {Ten  One      PrivateSensormanager Msensormanager; A       PrivateSensor mproximity; -  - @Override the        Public Final voidonCreate (Bundle savedinstancestate) { -         Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.main); -  +         //get an instance of the sensor service, and use this to Get a instance of -         //a particular sensor. +Msensormanager =(Sensormanager) Getsystemservice (context.sensor_service); AMproximity =msensormanager.getdefaultsensor (sensor.type_proximity); at       } -  - @Override -        Public Final voidOnaccuracychanged (sensor sensor,intaccuracy) { -         //Do something the here if sensor accuracy changes. -       } in  - @Override to        Public Final voidonsensorchanged (Sensorevent event) { +         floatDistance = Event.values[0]; -SYSTEM.OUT.PRINTLN ("Distance--->" +distance); the System.out.println (Mproximity.getmaximumrange ()); *         //Do something with this sensor data. $       }Panax Notoginseng  - @Override the       protected voidOnresume () { +         //Register a listener for the sensor. A         Super. Onresume (); theMsensormanager.registerlistener ( This, mproximity, sensormanager.sensor_delay_normal); +       } -  $ @Override $       protected voidOnPause () { -         //Being sure to unregister the sensor when the activity pauses. -         Super. OnPause (); theMsensormanager.unregisterlistener ( This); -       }Wuyi  the      -}

Android_mars Learning note _s05_006_ Distance sensor