Simple hello world for Android app won't display text
<p>I recently bought an Android phone and am trying to learn to code my own apps. Unfortunately after the first ten seconds I ran into the problem where I can't even get the <a href="http://developer.android.com/resources/tutorials/hello-world.html" rel="nofollow">"hello world" tutorial</a> to display "hello world."</p>

<p>I've read similar posts and I can't seem to find a fix. Since the Android loading logo is displaying I've waited for about ten minutes thinking it was just taking a while for the emulator to boot, but no luck.</p>

<pre><code>package multivax.random;

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

public class RandomNumbersActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        TextView tv = new TextView(this);
        tv.setText("Hello World");
        this.setContentView(tv);
    }
}
</code></pre>
