gistfile1.java

package com.johnlindquist;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Random;
import java.util.TimerTask;

public class HelloAndroid extends Activity
{
    public Handler handler;
    public TextView viewById;
    private ScrollView scrollView;
    private LinearLayout linearLayout;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        
        scrollView = new ScrollView(this);
        linearLayout = new LinearLayout(this);
        linearLayout.setOrientation(LinearLayout.VERTICAL);
        scrollView.addView(linearLayout);

        handler = new Handler();
        UpdateText updateText = new UpdateText(this);

        
        setContentView(scrollView);
        
        handler.postDelayed(updateText, 100);
    }

    private class UpdateText extends TimerTask
    {
        private Context context;

        private UpdateText(Context context)
        {
            this.context = context;
        }

        @Override
        public void run()
        {
            ArrayList names = new ArrayList();
            names.add("John");
            names.add("Mindy");
            names.add("Ben");
            names.add("Scootie");

            String name = (String) names.get(new Random().nextInt(names.size()));

            TextView textView = new TextView(context);

            textView.setText("Hello, " + name);
            linearLayout.addView(textView);  
            
            
            
            handler.postDelayed(this, 100);
        }
    }
}