I've got a simple View property animation attached to a button. The animation works perfectly on the first button press. However, on subsequent clicks no animation occurs. The log proves the button is being pressed. Is there something I'm missing? Here is the code:

```
    Button handle = (Button) findViewById(R.id.HandleButton);
    Button wheel1 = (Button) findViewById(R.id.Wheel1);
    handle.setOnClickListener(new View.OnClickListener() {        
        @Override        
        public void onClick(View v) {     
        Log.d(TAG, "Button Clicked");       
        ViewPropertyAnimator spinWheel1 = wheel1.animate().rotationX(360*8).setDuration(2000);
        }    
    });

```