How to Use the Android Accelerometer

Displaying Accelerometer Values in Android

Have you checked out the Accelerometer example in the android samples? You could always try something like this (which I got from here):

 public class SensorActivity extends Activity implements SensorEventListener {
     private final SensorManager mSensorManager;
     private final Sensor mAccelerometer;

     public SensorActivity() {
         mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
         mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
     }

     protected void onResume() {
         super.onResume();
         mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
     }

     protected void onPause() {
         super.onPause();
         mSensorManager.unregisterListener(this);
     }

     public void onAccuracyChanged(Sensor sensor, int accuracy) {
     }

     public void onSensorChanged(SensorEvent event) {
       //Right in here is where you put code to read the current sensor values and 
       //update any views you might have that are displaying the sensor information
       //You'd get accelerometer values like this:
       if (event.sensor.getType() != Sensor.TYPE_ACCELEROMETER)
            return;
        float mSensorX, mSensorY;
        switch (mDisplay.getRotation()) {
            case Surface.ROTATION_0:
                mSensorX = event.values[0];
                mSensorY = event.values[1];
                break;
            case Surface.ROTATION_90:
                mSensorX = -event.values[1];
                mSensorY = event.values[0];
                break;
            case Surface.ROTATION_180:
                mSensorX = -event.values[0];
                mSensorY = -event.values[1];
                break;
            case Surface.ROTATION_270:
                mSensorX = event.values[1];
                mSensorY = -event.values[0];
         }
     }
 }

How to use Android's Accelerometer

Your Activity can implement SensorEventListener, override onSensorChanged(SensorEvent event) like this:

public void onSensorChanged(SensorEvent event) {
    float x = event.values[0];
    float y = event.values[1];
    if (Math.abs(x) > Math.abs(y)) {
        if (x < 0) {
            image.setImageResource(R.drawable.right);
            textView.setText("You tilt the device right");
        }
        if (x > 0) {
            image.setImageResource(R.drawable.left);
            textView.setText("You tilt the device left");
        }
    } else {
        if (y < 0) {
            image.setImageResource(R.drawable.up);
            textView.setText("You tilt the device up");
        }
        if (y > 0) {
            image.setImageResource(R.drawable.down);
            textView.setText("You tilt the device down");
        }
    }
    if (x > (-2) && x < (2) && y > (-2) && y < (2)) {
        image.setImageResource(R.drawable.center);
        textView.setText("Not tilt device");
    }
}

More details, see my full post at: http://www.devexchanges.info/2015/05/detecting-tilt-device-by-using-sensor.html

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