How to store accelerometer values for some time and then unregister

Question

From some days i am trying but still all in vain.

i created accelerometer in service and i want to store the acceleromete values for sometime and then unregister.

so i used pendingintent so that will call again.

so therefor i request that how to store the values for at least 10 second and then unregiester.

the follwing is the java;

      public class MyService extends Service implements LocationListener
              ,SensorEventListener { 
    SensorManager sensor;
     Sensor accelerometer;
     // private FileWriter writer;
      StringBuilder sr;
      }
  @Override
     public int onStartCommand(Intent intent, int flags, int startId) {


    sensor = (SensorManager) getSystemService(SENSOR_SERVICE);
    accelerometer = sensor.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
    sensor.registerListener(
                 this,accelerometer,SensorManager.SENSOR_DELAY_NORMAL);   




             return START_STICKY;
            }
             @Override
     public void onSensorChanged(SensorEvent event) {


         synchronized (this) {
        try {
            float x = event.values[0];
            float y = event.values[1];
            double z = event.values[2] - 9.8;


            sr.append("" + x).toString();
            Toast.makeText(getBaseContext(), sr, Toast.LENGTH_LONG).show();
            wait(10000);


        } catch (Exception e) {
            //sensor.unregisterListener(this);
        }

       }
    }

       @Override
      public void onAccuracyChanged(Sensor sensor, int accuracy) {

    }

i used synchronized but cann't work . please any once can help; I stuck in this if this solve then my final year project will complet.

Answer 1

There are many ways to handle timer events in android, but I recommend using HANDLER with RUNNABLE.

`

Handler handler = new Handler();
Runnable runnable = new Runnable() {
    @Override
    public void run() {
        /* Any code you put here will run after 10 seconds, So you can unregister the sensor here */
        handler.postDelayed(runnable, 10000);// 10000 milliseconds = 10 seconds.
    }
};

`