Animation in android (make a person run)

I'm relatively new to android animation and just feel a couple of things. I want to know how I can make a “man” (image) on an android. The man is an icon.IF, I use animations through the following code, the icon simply moves around the screen. How can I get the current movement.

       public anima1(Context context) 
{
    super(context);
    cloud=BitmapFactory.decodeResource(getResources(),R.drawable.androidicon);


    // TODO Auto-generated constructor stub
}



       protected  void onDraw(Canvas canvas)
{
    super.onDraw(canvas);

    Rect re=new Rect();
    re.set(0,0,canvas.getWidth(),canvas.getHeight());
    Paint c=new Paint();
    c.setColor(Color.WHITE);
    c.setStyle(Paint.Style.FILL);
    canvas.drawRect(re,c);

    x=x+10;
    if(x==canvas.getWidth())
    {
    y=y+10;
    x=0;
    }
    if(y==canvas.getHeight())
    {
        x=0;
        y=0;
    }
    canvas.drawBitmap(cloud, x, y,p);



     invalidate();



}