Android ListView with SQLite

I want to update the Listview items. These items are populated from the SQLite database. My code is below

public class Weeve extends Activity {
      private String[] lv_arr;
    protected ListView CView;
    private DBAdapter mDbHelper;

      

        
        
        
      

    

public void onCreate (Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

   mDbHelper = new DBAdapter(this);
    mDbHelper.open();

    Cursor c = mDbHelper.getAll();
    if (c.getCount() > 0)
    {if (c.moveToFirst())
    {
        ArrayList strings = new ArrayList();
       do {                    
          String mC = c.getString(0);
          strings.add(mC);  

       } while (c.moveToNext());
       lv_arr = (String[]) strings.toArray(new String[strings.size()]);
    }
    }  
    else Toast.makeText(this, 
           "No more Records", 
           Toast.LENGTH_SHORT).show();
    c.close();

    ListView CView = new ListView(this);
    CView.setAdapter(new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, lv_arr));      
    setContentView(CView);}}

      

        
        
        
      

    

I would like to update this list view after adding, updating or deleting a SQLite table. These operations are called by content or in the options menu. I tried to create this code in a separate function and call it after each operation. But it cannot. I think the statement is setContentView (CView).

I also tried using SimpleCursorAdapter as a sample notepad from Android.com. I have an error in Thread. Help me.