CheckThread blog post HackerNewsActivityV1Buggy.java

HackerNewsActivityV1Buggy.java

package com.flurry.example.hnreader;

import java.io.IOException;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.widget.LinearLayout;
import android.widget.TextView;

/**
 * This code has a bug in it. CheckThread will catch the bug
 * 
 * @author aki
 * 
 */
public class HackerNewsActivityV1Buggy extends Activity
{
    private String kHackerNewsRssUrl = "http://news.ycombinator.com/rss";

    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        LinearLayout linearLayout = new LinearLayout(this);
        setContentView(linearLayout);
        try
        {
            // doing IO on the UI thread -- oops
            String feed = IO.getHttp(kHackerNewsRssUrl);
            List<String> titles = HackerNewsRSSParser.parseTitles(feed);
            for (String t : titles)
            {
                // updating the UI from the UI thread -- ok
                TextView textView = new TextView(this);
                textView.setText(t);
                linearLayout.addView(textView);
            }
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }
}