Code to show your XML Visual in Android

After posting some layout related xml examples in Android, i realized that there is no example on how to set your xml as your view/presentation layer. Here is the code:
package <yourPackage, example: com.almondmendoza.firstDemo>;
import android.app.Activity;
import android.os.Bundle;

public class Main extends Activity {
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.setContentView(R.layout.main);
  }
}


Quick Explanation
If you had developed in Rails/CakePHP like framework, this code, this.setContentView(R.layout.main); is like setting which layout (R.layout.main) to use to your controller (Activity).

I'll update the previous post to point to this. Hope it helps