spinnerdan veri silme

öncelikle sorunum şu , sqlite ile bilgileri çekiyorum spinnera yazdırıyorum . ama veri silmeyi yapamadım , kodlarım şu şekilde,

main activity---

package com.example.sqlitespinner;

import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends Activity implements OnItemSelectedListener{
    Spinner spinner;
    Button btnAdd,btndel;
    EditText inputLabel;
    private DatabaseHandler userr;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        spinner = (Spinner) findViewById(R.id.spinner);
        btnAdd = (Button) findViewById(R.id.btn_add);
        btndel = (Button) findViewById(R.id.button1);
        inputLabel = (EditText) findViewById(R.id.input_label);
 
        spinner.setOnItemSelectedListener(this);
 
        // Loading spinner data from database
        loadSpinnerData();
 btndel.setOnClickListener(new OnClickListener() {
    
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        EditText adi=(EditText) findViewById(R.id.input_label);
        
    }
});
        btnAdd.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View arg0) {
                String label = inputLabel.getText().toString();
 
                if (label.trim().length() > 0) {
                    DatabaseHandler db = new DatabaseHandler(getApplicationContext());
                    db.insertLabel(label);
 
                    // making input filed text to blank
                    inputLabel.setText("");
 
                    // Hiding the keyboard
                    InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                    imm.hideSoftInputFromWindow(inputLabel.getWindowToken(), 0);
 
                    // loading spinner with newly added data
                    loadSpinnerData();
                } else {
                    Toast.makeText(getApplicationContext(), "Please enter label name",
                            Toast.LENGTH_SHORT).show();
                }
 
            }
        });
    }
 
    /**
     * Function to load the spinner data from SQLite database
     * */
    private void loadSpinnerData() {
        DatabaseHandler db = new DatabaseHandler(getApplicationContext());
        List<String> lables = db.getAllLabels();
 
        // Creating adapter for spinner
        ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, lables);
 
        // Drop down layout style - list view with radio button
        dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 
        // attaching data adapter to spinner
        spinner.setAdapter(dataAdapter);
    }
 
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position,
            long id) {
        // On selecting a spinner item
        String label = parent.getItemAtPosition(position).toString();
 
        // Showing selected spinner item
        Toast.makeText(parent.getContext(), "You selected: " + label,
                Toast.LENGTH_LONG).show();
 
    }
 
    @Override
    public void onNothingSelected(AdapterView<?> arg0) {
        // TODO Auto-generated method stub
 
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}

veritabanım--

package com.example.sqlitespinner;
import java.util.ArrayList;
import java.util.List;
 
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
 
public class DatabaseHandler extends SQLiteOpenHelper {
    // Database Version
    private static final int DATABASE_VERSION = 1;
 
    // Database Name
    private static final String DATABASE_NAME = "spinnerExample";
 
    // Labels table name
    private static final String TABLE_LABELS = "labels";
 
    // Labels Table Columns names
    private static final String KEY_ID = "id";
    private static final String KEY_NAME = "name";
 
    public DatabaseHandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }
 
    // Creating Tables
    @Override
    public void onCreate(SQLiteDatabase db) {
        // Category table create query
        String CREATE_CATEGORIES_TABLE = "CREATE TABLE " + TABLE_LABELS + "("
                + KEY_ID + " INTEGER PRIMARY KEY," + KEY_NAME + " TEXT)";
        db.execSQL(CREATE_CATEGORIES_TABLE);
    }
 
    // Upgrading database
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_LABELS);
 
        // Create tables again
        onCreate(db);
    }
 
    /**
     * Inserting new lable into lables table
     * */
    public void insertLabel(String label){
        SQLiteDatabase db = this.getWritableDatabase();
 
        ContentValues values = new ContentValues();
        values.put(KEY_NAME, label);
 
        // Inserting Row
        db.insert(TABLE_LABELS, null, values);
        db.close(); // Closing database connection
    }
 
    /**
     * Getting all labels
     * returns list of labels
     * */
    public List<String> getAllLabels(){
        List<String> labels = new ArrayList<String>();
 
        // Select All Query
        String selectQuery = "SELECT  * FROM " + TABLE_LABELS;
 
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);
 
        // looping through all rows and adding to list
        if (cursor.moveToFirst()) {
            do {
                labels.add(cursor.getString(1));
            } while (cursor.moveToNext());
        }
 
        // closing connection
        cursor.close();
        db.close();
 
        // returning lables
        return labels;
    }
}