android-sensors

I have a sparesArray which I use to store & batch SensorEvents by holding onto each sensor typeId and SensorEvent object until a timer fires. SparseArray<SensorEvent> sensorEventMap = new SparseArray<SensorEvent>(); public void onSensorChanged(SensorEvent event) { synchronized (this) { sensorEventMap.put(event.sensor.getType(), event); } } I am having issues where the SensorEvent is getting overwritten in the array before my timer fires, so I'd like to make a copy of the SensorEvent and store the copy in the array instead. How can I make a copy of SensorEvent ? I need the whole SensorEvent,

I have configured proximeter successfully in my code. Now I want to turn off & on screen programmatically. Code of sensor is working just fine and following method is also getting called. @Override public void onSensorChanged(SensorEvent event) { // TODO Auto-generated method stub PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); WakeLock screenWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"screenWakeLock"); if (event.values[0] == 0) { screenWakeLock.acquire(); Log.e("onSensorChanged","NEAR"); } else { if (screenWakeLock != null) { if(screenWakeLock.isHeld())

I'm developing a wearable app and I've noticed a strange behaviour. I have a class FooService extends Service implements SensorEventListener and I've override onSensorChanged() method: @Override public void onSensorChanged(SensorEvent sensorEvent) { if (sensorEvent.sensor.getType() != Sensor.TYPE_ACCELEROMETER) { Log.e(TAG, getString(R.string.err_wrong_sensor_registered)); return; } float x = sensorEvent.values[0]; float y = sensorEvent.values[1]; float z = sensorEvent.values[2]; ... } This service is started from FooActivity extends WearableActivity - here i override onEnterAmbient() ,

I have written a small code to convert the device co-ordinates into world co-ordinates by multiplying the Rotation matrix(using getRotationMatrix) and the vector (Ax,Ay,Az) which are the accelerometer values. When I run this, and the phone is static, I get a very fluctuating value for the Z axis(from 9.3 to 10.3) and the other two are 0. However when I give the phone some acceleration in any direction , it still doesn't show any change to those values and they remain zero. This is the part of the code where I get the values. if(ctp.getType()==Sensor.TYPE_ACCELEROMETER){ Ca[0]=event.values[0];