Sensor accelerometer.txt

//permission

<uses-feature android:name="android.hardware.sensor.accelerometer"  android:required="true" />
    <uses-permission android:name="android.permission.VIBRATE"></uses-permission>
   


//code

public class MainActivity extends AppCompatActivity implements SensorEventListener  {

    Sensor sensor;
    SensorManager sensorManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sensorManager=(SensorManager)getSystemService(Context.SENSOR_SERVICE);
        sensor=sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

    }

    @Override
    public  void onResume(){
        super.onResume();
        sensorManager.registerListener(this,sensor,SensorManager.SENSOR_DELAY_NORMAL);

    }
    @Override
    public  void onPause(){
        super.onPause();
        sensorManager.unregisterListener(this);
    }

  float xOld=0;
    float yOld=0;
    float zOld=0;
    float ThreaShold=3000;
    long OldTime=0;
    @Override
    public void onSensorChanged(SensorEvent event) {
       float x =event.values[0];
        float y =event.values[1];
        float z =event.values[2];
        long CurrentTime= System.currentTimeMillis();

        if ((CurrentTime-OldTime)>100){

            long TimeDiff=CurrentTime-OldTime;
            OldTime=CurrentTime;

            float speed=Math.abs(x+y+z-xOld-yOld-zOld)/TimeDiff *10000;
            if (speed>ThreaShold){
                Vibrator v=(Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
                v.vibrate(500);
                Toast.makeText(getApplicationContext(),"Shook",Toast.LENGTH_LONG).show();;
            }


        }

    }

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

    }
}