noob issue with Android postgreSQL view

[KeenanCassidy]

I am still new to Android Development, I am trying to design an app which will retrieve information from a postgreSQL DB and display in a readable view, preferable grouped together in tabs of related content, for example: the app retrieves information about a holiday one tab should be information regarding flight details, another about hotel details, another about payment details etc..

The user should enter there booking id, hit a button and the information should be collected and displayed. I have this much working minus the manner in which the information is displayed

I cannot figure out how to edit the view the information is displayed in, see my code below:

public class **** extends Activity {
/** Called when the activity is first created. */
TextView resultArea;
private Button enterBookingRefBtn;
protected EditText enterRef;
String bookingRefNum;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    resultArea = new TextView(this);
    resultArea.setText("Please Wait");
    setContentView(layout.main);        
    this.enterBookingRefBtn = (Button)this.findViewById(R.id.enterBookingRefButton);
    this.enterBookingRefBtn.setOnClickListener(new OnClickListener(){
        public void onClick(View v) {
            final EditText enterRef = (EditText) findViewById(R.id.enterRef);  
            bookingRefNum = enterRef.getText().toString();

   // I CANT FIGURE OUT HOW TO EDIT THE BELOW VIEW

          setContentView(resultArea);

   // I CANT FIGURE OUT HOW TO EDIT THE ABOVE VIEW

            new FetchSQL().execute();
        }
    });     
}

So the information is displayed by the setContentView(resultArea), and I cant find anyway to edit this, I would like to add a back button, and edit how the information is displayed, but im just stuck, any changes I have cause the app to crash..

ANY HELP IS VERY MUCH APPRECIATED