package com.example.testapp;

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings.Secure;
import android.support.v4.app.NavUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

/** Display activity. This activity displays text to the user. */
public class DisplayMessageActivity extends Activity {

	private final static int TEXT_SIZE = 20;

	private ClientSocket mClient;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		mClient = new ClientSocket();

		// Receive message
		Intent i = getIntent();
		String message = i.getStringExtra(MainActivity.EXTRA_MESSAGE);

		// Create the text view
		TextView textView = new TextView(this);
		textView.setTextSize(TEXT_SIZE);
		textView.setText(message);

		setContentView(textView);
		// Show the Up button in the action bar.
		setupActionBar();

		// Send data to server
		mClient.setServerIpAddress(message);

		String androidId = Secure.getString(getBaseContext()
				.getContentResolver(), Secure.ANDROID_ID);
		String deviceIdentifier = android.os.Build.MODEL + " (" + androidId
				+ ") connected";
		mClient.sendData(deviceIdentifier);
		String response = mClient.getResponse();
		
		textView.setText(message + '\n' + response);
		
		// prints on the next line
		setContentView(textView);
	}

	/**
	 * Set up the {@link android.app.ActionBar}, if the API is available.
	 */
	@TargetApi(Build.VERSION_CODES.HONEYCOMB)
	private void setupActionBar() {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
			getActionBar().setDisplayHomeAsUpEnabled(true);
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Do nothing
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case android.R.id.home:
			// This ID represents the Home or Up button. In the case of this
			// activity, the Up button is shown. Use NavUtils to allow users
			// to navigate up one level in the application structure. For
			// more details, see the Navigation pattern on Android Design:
			//
			// http://developer.android.com/design/patterns/navigation.html#up-vs-back
			//
			NavUtils.navigateUpFromSameTask(this);
			return true;
		}
		return super.onOptionsItemSelected(item);
	}

}

@@ -538,16 +538,171 @@
 lient;%0A%0A
+%09private TextView mTextView;%0A%09%0A%09public TextView getTextView() %7B%0A%09%09return mTextView;%0A%09%7D%0A%09%0A%09public void refreshDisplay() %7B%0A%09%09setContentView(mTextView);%0A%09%7D%0A%09%0A
 %09@Overri
@@ -975,18 +975,10 @@
 w%0A%09%09
+m
 T
-extView t
 extV
@@ -1001,25 +1001,26 @@
 ew(this);%0A%09%09
-t
+mT
 extView.setT
@@ -1041,17 +1041,18 @@
 IZE);%0A%09%09
-t
+mT
 extView.
@@ -1072,39 +1072,31 @@
 ge);%0A%0A%09%09
-setContentView(textView
+refreshDisplay(
 );%0A%09%09// 
@@ -1149,24 +1149,26 @@
 ctionBar();%0A
+  
 %0A%09%09// Send d
@@ -1499,14 +1499,42 @@
 ();%0A
+%0A
 %09%09
+// prints on the next line
 %0A%09%09
-t
+mT
 extV
@@ -1579,69 +1579,30 @@
 ;%0A%09%09
-%0A%09%09// prints on the next line%0A%09%09setContentView(textView
+refreshDisplay(
 );%0A%09%7D%0A
+ 
 %0A%09/*

Add testView accessors and a function to update the display in DisplayMessaveActivity class.