Как использовать счетчик для отображения даты в sql lite в Android?

Я хочу, чтобы в моем приложении было 3 счетчика, которые предназначены для выбора даты следующим образом: Год - Месяц - День Например, сегодня 2015-10-08, и счетчики показывают эту дату автоматически из системы: год-счетчик показывает 2015 Месяц-счетчик показывает 10 Дневной прядильщик показывает 08 Хотя пользователи могут менять их, выпадая и выбирая другой. Наконец, эти данные должны быть сохранены в моей базе данных sql-lite. Я не знаю, как им, пожалуйста, помогите мне. Спасибо!

Это мой код:

мое описание приложения находится после нажатия AddVow, пользователь добавляет некоторые данные в виде числа и даты. число берется путем редактирования текста, а дата берется счетчиком (как я описываю выше)

MyActivity.class:

public class MyActivity extends Activity   {

private ListView listView;
private AddVowAdapter adapter;
private DataBaseClass classDB;
private SQLiteDatabase sqlDB;

private ArrayList<String> vowId = new ArrayList<String>();  
private ArrayList<String> vow_number = new ArrayList<String>();
private ArrayList<String> vow_start = new ArrayList<String>(); 


private AlertDialog.Builder build;  // options for Edit/Delete


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    listView = (ListView) findViewById(R.id.ListView);
    classDB =new DataBaseClass(this);

    // edit and delete code  
     listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(AdapterView<?> adapterView, View view,final int i,final long l) {
            // creating dialog
            build = new AlertDialog.Builder(MyActivity.this);
            //Edit
            build.setNegativeButton("ویرایش کردن نذز",
                    new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog,
                                            int which) {
                            Intent edit_intent = new Intent(getApplicationContext(), AddVowActivity.class);
                            edit_intent.putExtra("id", vowId.get(i));
                            edit_intent.putExtra("number", vow_number.get(i));
                            edit_intent.putExtra("startDate", vow_start.get(i));
                             startActivity(edit_intent);
                            dialog.cancel();
                        }
                    });
            AlertDialog alert = build.create();
            alert.show();

            return true;
        }
    });


}


//***************** Menu Button for adding VOW
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.add_vow, menu);
    return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{   super.onOptionsItemSelected(item);
    switch(item.getItemId()){
        case R.id.add_vow_menu:
            Intent intent = new Intent(getApplicationContext(),AddVowActivity.class);
            intent.putExtra("update",false);
            startActivity(intent);
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}







@Override
protected void onResume() {
    displayData();
    super.onResume();
}


private void displayData() {   //displays data from SQLite
    sqlDB = classDB.getWritableDatabase();
    Cursor mCursor = sqlDB.rawQuery("SELECT * FROM "+DataBaseClass.VOW_TABLE_NAME, null);

    vowId.clear();
    vow_number.clear();
    vow_start.clear();
    if (mCursor.moveToFirst()) {
        do {
            vowId.add(mCursor.getString(mCursor.getColumnIndex(DataBaseClass.VOW_COLUMN_ID)));
            vow_number.add(mCursor.getString(mCursor.getColumnIndex(DataBaseClass.VOW_COLUMN_NUMBER)));
            vow_start.add(mCursor.getString(mCursor.getColumnIndex(DataBaseClass.VOW_COLUMN_START_DATE)));

        } while (mCursor.moveToNext());
    }
    AddVowAdapter adapter = new AddVowAdapter(this,vowId, vow_number , vow_start);
    listView.setAdapter(adapter);
    mCursor.close();
}

}

AddVowActivity.class:

public class AddVowActivity extends Activity implements AdapterView.OnItemSelectedListener{
private EditText addNUM;

private Spinner addYEAR;
private Spinner addMONTH;
private Spinner addDAY;

private Button insertBTN;
private Button deleteBTN;

private DataBaseClass classDB;
private SQLiteDatabase sqlDB;

private String id;
private String number;
private String startDate;
private String startDateFormat;
private boolean isUpdate;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.add_vow);

    classDB = new DataBaseClass(this);

    addNUM = (EditText) findViewById(R.id.addNum);
    addYEAR = (Spinner) findViewById(R.id.addYear);
    addMONTH = (Spinner) findViewById(R.id.addMonth);
    addDAY = (Spinner) findViewById(R.id.addDay);

    insertBTN = (Button) findViewById(R.id.insert);
    deleteBTN = (Button) findViewById(R.id.deleteBTN);


    isUpdate=getIntent().getExtras().getBoolean("vowUpdate");
    if(isUpdate){
        id=getIntent().getExtras().getString("id");
        number=getIntent().getExtras().getString("number");
        startDate=getIntent().getExtras().getString("startDate");

        addNUM.setText(number);

    }




insertBTN.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        number=addNUM.getText().toString().trim();
        startDate= startDateFormat.trim();


    }
});



 //SPINNERS
    ArrayList<String> years=new ArrayList<String>();
    int minYear=2000;
    for(int i=minYear; i<=2020; i++){
        years.add(String.valueOf(i));
    }
    ArrayAdapter<String> yearAdapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, years);
    addYEAR.setAdapter(yearAdapter);


    ArrayList<String> months=new ArrayList<String>();
    for(int i=1; i<=12; i++){
        months.add(String.format("%02d", i));
    }
    ArrayAdapter<String> monthAdapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, months);
    addMONTH.setAdapter(monthAdapter);

    ArrayList<String> dates=new ArrayList<String>();
    for(int i=1; i<=31; i++){
        dates.add(String.format("%02d", i));
    }
    ArrayAdapter<String> dateAdapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, dates);
    addDAY.setAdapter(dateAdapter);

    Calendar calendar=Calendar.getInstance();
    addDAY.setSelection(calendar.get(Calendar.DATE)-1);
    addMONTH.setSelection(calendar.get(Calendar.MONTH));
    addYEAR.setSelection(calendar.get(Calendar.YEAR)-minYear);

    addDAY.setOnItemSelectedListener(this);
    addMONTH.setOnItemSelectedListener(this);
    addYEAR.setOnItemSelectedListener(this);
}








@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    switch (view.getId()){
        case R.id.addDay:

            break;

        case R.id.addMonth:// change accordingly dateadapter in based on month and year.
            break;
        case R.id.addYear:// change accordingly dateadapter in based on month and year.
            break;
    }

    String dayNO=addDAY.getSelectedItem().toString();
    String monthNo=addMONTH.getSelectedItem().toString();
    String yearNO=addYEAR.getSelectedItem().toString();


    Log.d("AddVowActivity", "onItemSelected :"+dayNO+"  "+monthNo+"  "+yearNO+"");

    // store your date format in your database here.
    startDateFormat = yearNO+ "-" + monthNo + "-" + dayNO;
}

@Override
public void onNothingSelected(AdapterView<?> parent) {

}



private void saveData(){
    sqlDB=classDB.getWritableDatabase();
    ContentValues values=new ContentValues();

    values.put(DataBaseClass.VOW_COLUMN_NUMBER,number);
    values.put(DataBaseClass.VOW_COLUMN_START_DATE,startDate);
    System.out.println("");
    if(isUpdate)
    {
        //update database with new data
        sqlDB.update(DataBaseClass.VOW_TABLE_NAME, values, DataBaseClass.VOW_COLUMN_ID + "=" + id, null);
    }else {
        //insert data into database
        sqlDB.insert(DataBaseClass.VOW_TABLE_NAME, null, values);
    }
    //close database
    sqlDB.close();
    finish();
}

}

AddVowAdapter.class:

public class AddVowAdapter extends BaseAdapter {
private Context context;
private ArrayList<String> VId;
private ArrayList<String> Vnumber;
private ArrayList<String> Vstart;

public ArrayList<Integer> selectedViewsPositions = new ArrayList<Integer>();
public Cursor dbCursor;


public AddVowAdapter(Context c , ArrayList<String> id, ArrayList<String> number , ArrayList<String> start){
    context=c;
    VId=id;
    Vnumber=number;
    Vstart= start;
}

@Override
public int getCount() {
    return VId.size();
}

@Override
public Object getItem(int i) {
    return null;
}

@Override
public long getItemId(int i) {
    return 0;
}

@Override
public View getView(int i, View view, ViewGroup viewGroup) {
    Holder mHolder;
    LayoutInflater layoutInflater;
    if (view == null) {
        layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = layoutInflater.inflate(R.layout.vow_list_item, null);
        mHolder = new Holder();
        mHolder.txt_id = (TextView) view.findViewById(R.id.id);
        mHolder.txt_VNumber = (TextView) view.findViewById(R.id.number_text);
        mHolder.txt_VStart = (TextView) view.findViewById(R.id.start_text);
        view.setTag(mHolder);
    } else {
        mHolder = (Holder) view.getTag();
    }
    mHolder.txt_id.setText(VId.get(i));
    mHolder.txt_VNumber.setText(Vnumber.get(i));
    mHolder.txt_VStart.setText(Vstart.get(i));


    return view;
}



public class Holder {
    TextView txt_id;
    TextView txt_VNumber;
    TextView txt_VStart;
}

DataBaseClass.class:

public class DataBaseClass extends SQLiteOpenHelper {

static String DATABASE_NAME = "user's vowes";
public static final String VOW_TABLE_NAME = "vowing";
public static final String VOW_COLUMN_ID = "id";
public static final String VOW_COLUMN_NUMBER = "number";
public static final String VOW_COLUMN_START_DATE ="startDate";

public DataBaseClass(Context context) {
    super(context, DATABASE_NAME, null, 1);
}

@Override
public void onCreate(SQLiteDatabase db) {
    String CREATE_TABLE="CREATE TABLE "+VOW_TABLE_NAME+" " +
            "("+VOW_COLUMN_ID+" INTEGER PRIMARY KEY, "+
            VOW_COLUMN_NUMBER+" TEXT, "+
            VOW_COLUMN_START_DATE+"  TEXT)";

    db.execSQL(CREATE_TABLE);
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    db.execSQL("DROP TABLE IF EXISTS "+VOW_TABLE_NAME);
    onCreate(db);
}

}

а это LogCat:

07-19 17:24:23.047    1884-2184/? V/AudioPolicyManagerBase﹕ setOutputDevice()                output 2 device 0002 force 0 delayMs 0

07-19 17: 24: 23.047 1884-2154 /? D / AudioHardwareTinyALSA ﹕ OutALSA :: setDevice: mode = 0, newDevice = 0x2, currentDevice = 0x2, force = 0 07-19 17: 24: 23.277 1884-16827 /? V / AudioPolicyManagerBase ﹕ setOutputDevice () output 2 device 0000 force 0 delayMs 184