如何根据列表项单击列表项目上的布局（Listview是否通过数据库填充）？

Question

我正在尝试制作广告投放应用。我已经使listview从数据库中膨胀了它，我想在其点击上膨胀布局。但是布局没有得到任何数据。

Listview代码：

public class List1 extends Activity{

    ImageView img1;
    TextView txt,price1;
    SQLiteDatabase sqLiteDatabase;
    UserDbHelper userDbHelper;
    byte[] photo;

      @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list1);

          userDbHelper = new UserDbHelper(getApplicationContext());
          sqLiteDatabase = userDbHelper.getReadableDatabase();
          price1=(TextView)findViewById(R.id.Price);
          TextView des=(TextView)findViewById(R.id.des);

          ImageView img1=(ImageView)findViewById(R.id.image2);
          Intent in=getIntent();
          int intValue = in.getIntExtra("id",0);
          String i=Integer.toString(intValue);

          Cursor cursor=userDbHelper.getContact(i,sqLiteDatabase);
          if(cursor.moveToFirst())
          {
              String NAME=cursor.getString(0);
              String PHONE=cursor.getString(1);
              String PRICE=cursor.getString(2);
              String DESC=cursor.getString(3);
              byte[] PHOTO=cursor.getBlob(4);
              Bitmap bmp = BitmapFactory.decodeByteArray(photo, 0, photo.length);
              img1.setImageBitmap(bmp);
              price1.setText(PRICE);
              des.setText(DESC);
          }
    }
}

This is listview
This is showing after listview item click and i want it to be inflated with the data of list item which is clicked