How do I make my app record step data on a daily basis?

I'm trying to make a timeline fragment for my app that shows the number of steps taken each day, I display the step count in a fragment,

1. I'm having trouble in resetting the value after every 24 hours.
2. I've declared my step counting variable as a static variable which resets when app is closed but I have declared a service class which is where my step counting logic happens.
3. Each day's steps will be inserted into a sqlite database and displayed in another fragment inside a listview.

public class HomeFragment extends Fragment {

TextView tv_steps; View myView; private BroadcastReceiver receiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { int stepCountValue = intent.getExtras().getInt("StepCount"); tv_steps.setText(String.valueOf(stepCountValue)); // Toast.makeText(context, stepCountValue + "", Toast.LENGTH_SHORT).show(); } }; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { myView = inflater.inflate(R.layout.home_layout, container, false); RelativeLayout rl = (RelativeLayout) inflater.inflate(R.layout.home_layout, container, false); tv_steps = (TextView) rl.findViewById(R.id.tv_steps); return rl; } @Override public void onResume() { super.onResume(); getActivity().registerReceiver(receiver, new IntentFilter("stepcountvalue")); } @Override public void onPause() { super.onPause(); //getActivity().unregisterReceiver(receiver); } 

}

My service class for step counting logic:

public class StepCounterService extends Service implements SensorEventListener { SensorManager sensorManager; static int initialStepCount = 0; public static int stepCount = 0; SQLiteDatabase database; private int numberOfStepsToBeInserted; @Override public void onCreate() { super.onCreate(); sensorManager = (SensorManager) this.getSystemService(Context.SENSOR_SERVICE); database = openOrCreateDatabase("Steps", MODE_PRIVATE, null); try { database.execSQL("CREATE TABLE IF NOT EXISTS steps (date TEXT, steps_count INT(10))"); } catch (Exception e) { e.printStackTrace(); } final Handler handler = new Handler(); Runnable run = new Runnable() { @Override public void run() { //numberOfStepsToBeInserted = stepCount; //stepCount = stepCount - numberOfStepsToBeInserted; //stepCount = 0; String date = new SimpleDateFormat("yyyy-MM-dd").format(new Date()); database.execSQL("INSERT INTO steps(date, steps_count) VALUES('" + date + "', '" + stepCount + "')"); Cursor c = database.rawQuery("SELECT * FROM steps", null); int dateIndex = c.getColumnIndex("date"); int stepIndex = c.getColumnIndex("steps_count"); c.moveToFirst(); if (c.getCount() >= 1) { while (c.moveToNext()) { Log.d("----------------->", c.getString(dateIndex) + " " + c.getInt(stepIndex)); } } else { Log.i("Check empty", "Cursor empty"); } handler.postDelayed(this, 86400000); } }; handler.post(run); } @Override public void onSensorChanged(SensorEvent event) { if (initialStepCount == 0) { initialStepCount = (int) event.values[0]; } stepCount = (int) event.values[0] - initialStepCount; Intent sendStepCount = new Intent("stepcountvalue"); sendStepCount.putExtra("StepCount", stepCount - numberOfStepsToBeInserted); sendBroadcast(sendStepCount); } @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override public IBinder onBind(Intent intent) { return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { Sensor countSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER); if (countSensor != null) { sensorManager.registerListener(this, countSensor, SensorManager.SENSOR_DELAY_UI); } else { } return START_STICKY; } @Override public void onDestroy() { } }