<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/twitter_messages"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:singleLine="false"
        android:text="@string/twitter_messages" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">Twitter</string>

    <string name="twitter_messages"></string>
</resources>

package twitter.com.com;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.widget.TextView;

public class TwitterActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    	StrictMode.enableDefaults();
    	super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView twitterMessages = (TextView)findViewById(R.id.twitter_messages);
        String readTwitterFeed = readTwitterFeed();
        StringBuilder messages = new StringBuilder();
        try {
        	JSONArray jsonArray = new JSONArray(readTwitterFeed);
        	for (int i=0;i<jsonArray.length();i++) {
        		JSONObject jsonObject = jsonArray.getJSONObject(i);
        		messages.append(jsonObject.getString("text")+'\n');
        	}
        	twitterMessages.setText(messages.toString());
        }
        catch (Exception e) {
        	e.printStackTrace();
        }
        
    }
    
    public String readTwitterFeed() {
    	StringBuilder builder = new StringBuilder();
    	HttpClient client = new DefaultHttpClient();
    	HttpGet httpGet = new HttpGet("http://twitter.com/statuses/user_timeline/vogella.json");
    	try {
    		HttpResponse response = client.execute(httpGet);
    		StatusLine statusLine = response.getStatusLine();
    		int statusCode = statusLine.getStatusCode();
    		if (statusCode ==200) {
    			HttpEntity entity = response.getEntity();
    			InputStream content = entity.getContent();
    			BufferedReader reader = new BufferedReader(new InputStreamReader(content));
    			String line;
    			while ((line = reader.readLine()) != null) {
    				builder.append(line);
    			}
    		}
    		else {
    			Log.e(TwitterActivity.class.toString(), "Download fail");
    		}
    	}
    	catch (ClientProtocolException e) {
    		e.printStackTrace();
    	}
    	catch (IOException e) {
    		e.printStackTrace();
    	}
    	return builder.toString();
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="twitter.com.com"
    android:versionCode="1"
    android:versionName="1.0" >
	<uses-permission android:name="android.permission.INTERNET" />
	
    <uses-sdk android:minSdkVersion="15" />
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".TwitterActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>