Android SimpleCursorAdapter Example

package com.myapp;

import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.SimpleCursorAdapter;
import android.widget.Spinner;
import android.app.Activity;
import android.database.Cursor;
import android.widget.Toast;


public class MainActivity extends Activity {
	  
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
		// get Data from SQLite
		final myDBClass myDb = new myDBClass(this);
		/*
		 * for insert statement
		myDb.InsertData("1","Picture 1", "pic_a.png");
		myDb.InsertData("2","Picture 2", "pic_b.png");
		myDb.InsertData("3","Picture 3", "pic_c.png");
		myDb.InsertData("4","Picture 4", "pic_d.png");
		myDb.InsertData("5","Picture 5", "pic_e.png");
		myDb.InsertData("6","Picture 6", "pic_f.png");
		myDb.InsertData("7","Picture 7", "pic_g.png");
		myDb.InsertData("8","Picture 8", "pic_h.png");
		myDb.InsertData("9","Picture 9", "pic_i.png");
		*/
		final Cursor myData = myDb.SelectAllData();   
		startManagingCursor(myData);
		
        // spinner1
        final Spinner spin = (Spinner)findViewById(R.id.spinner1);  
        
        SimpleCursorAdapter adapter;
        adapter = new SimpleCursorAdapter(MainActivity.this, R.layout.custom_column, myData
        		,new String[] {"GalleryID","Name","Path"}
        		,new int[] {R.id.ColGalleryID, R.id.ColName, R.id.ColPatn}); 
        
        spin.setAdapter(adapter);
        
        spin.setOnItemSelectedListener(new OnItemSelectedListener() {

			public void onItemSelected(AdapterView<?> arg0, View selectedItemView,
					int position, long id) {
				// TODO Auto-generated method stub
				String ItemID = myData.getString(myData.getColumnIndex("Name"));
        	    Toast.makeText(MainActivity.this,
        	    		"Your Selected : " + ItemID,
        	    			Toast.LENGTH_SHORT).show();	
			}

			public void onNothingSelected(AdapterView<?> arg0) {
				// TODO Auto-generated method stub
	      	    Toast.makeText(MainActivity.this,
        	    		"Your Selected : -",
        	    			Toast.LENGTH_SHORT).show();	
			}


        });
   
    } 
    
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}