在很多時候，我們都希望Android介面中的TextView數字滾動顯示以增加檢視的趣味性，

1.在此，實現Android的滾動數字TextView：

public class RunTextView extends TextView {
	
	private int duration = 1500;
	private float number;

	public float getNumber() {
		return number;
	}

	public void setNumber(float number) {
		this.number = number;
		setText(String.format("%,.2f",number));
		
	}

	public RunTextView(Context context, AttributeSet attrs) {
		super(context, attrs);
	}
	
	/**
	 * 顯示
	 * @param number
	 */
	public void runWithAnimation(float number){
		ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(
				this, "number", 0, number);
		objectAnimator.setDuration(duration);
		objectAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
		
		objectAnimator.start();
		
	}

}