gistfile1.java

package com.android.myCompass;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class myCompass extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       // setContentView(R.layout.main);
        TextView tv = new TextView(this);
        tv.setText("Hello, Android");
        setContentView(tv);
        
        myTimerTask myTask = new myTimerTask(tv);
        Timer myTimer = new Timer();
        myTimer.schedule(myTask,1000,1000);
        }   
}

class myTimerTask extends TimerTask{
	int I=0;
	TextView tv;

	public myTimerTask(TextView tv){//,Activity myParent){
		this.tv=tv;
		this.tv.setText("timer created");
	}

	@Override
	public void run() {
		this.tv.post(new Runnable() {
			public void run() {
				this.tv.setText("timer started "+I);
				this.tv.invalidate();
				I++;
			}
		});
	}
	
}