Creates a 'bouncy effect' on the passed view (code from DevBytes episode - http://www.youtube.com/watch?v=uQ7PTe7QMQM) Note this version depends on nineoldandroids

BouncyTouch.java

/**
     * Applies a touch listener to <code>v</code> which causes the view to 'expand and contract'
     * based on it's touch state
     *
     * @param v
     *         The view to apply the touch listener too
     * @param bounceTension
     *         The tension (bounce back) to apply when the user lifts their finger from the view
     */
    public static void applyBounceTouchListener(final View v, final int bounceTension) {
        v.setOnTouchListener(new View.OnTouchListener() {
            private final DecelerateInterpolator mDecelerateInterpolator
                    = new DecelerateInterpolator();

            private final OvershootInterpolator mOvershootInterpolator
                    = new OvershootInterpolator(bounceTension);

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    ViewPropertyAnimator.animate(v)
                            .setInterpolator(mDecelerateInterpolator)
                            .scaleY(0.85f).scaleX(0.85f).setDuration(200);
                } else if (event.getAction() == MotionEvent.ACTION_UP) {
                    ViewPropertyAnimator.animate(v)
                            .setInterpolator(mOvershootInterpolator)
                            .scaleY(1f).scaleX(1f).setDuration(200);
                }

                return false;
            }
        });
    }