Android_ the thief through the sensor

Package Com.beyond.phonestolen;import Android.hardware.sensor;import Android.hardware.sensorevent;import Android.hardware.sensoreventlistener;import Android.hardware.sensormanager;import Android.media.AudioManager; Import Android.media.mediaplayer;import android.os.bundle;import android.app.activity;import android.widget.Toast; public class Mainactivity extends Activity {//Sensor Manager private Sensormanager sm;//distance sensor private sensor sensor;@ overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview ( R.layout.activity_main);//1, get the Sensor manager sm= (Sensormanager) Getsystemservice (Sensor_service) by acquiring system services//2, Obtain the specified distance sensor Sensor=sm.getdefaultsensor (sensor.type_proximity) via the sensor manager,//3, through the Sensor Manager Register listener, Sensing event Sm.registerlistener (new MyListener (), sensor, sensormanager.sensor_delay_game) of the distance sensor;} Private class MyListener implements sensoreventlistener{@Overridepublic void Onsensorchanged (Sensorevent event) {float Distance=event.values[0];//system.out.println (Val[0]); ToaSt.maketext (Mainactivity.this, "" +distance, 0). Show ();//When the phone is inside the trouser pocket, the distance is 0if (distance<1.0f) {return;} When the phone out of the trouser pocket, the distance is 1, play music Playmusic ();} private void Playmusic () {//Play Music MediaPlayer mplayer=mediaplayer.create (Mainactivity.this, r.drawable.alarm); Mplayer.setaudiostreamtype (audiomanager.stream_music); try {mplayer.prepare ();} catch (Exception e) { E.printstacktrace ();} Should theoretically be prepared asynchronously, start the player Mplayer.start () in the prepared callback function;} @Overridepublic void onaccuracychanged (sensor sensor, int accuracy) {}}}

Android_ the thief through the sensor