YiAnimation.java

package cn.edu.chd.utils;

import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.RotateAnimation;

public class YiAnimation
{
	// �붯��
	public static void startAnimationIN(ViewGroup viewGroup, int duration)
	{
		for (int i = 0; i < viewGroup.getChildCount(); i++)
		{
			viewGroup.getChildAt(i).setVisibility(View.VISIBLE);// ������ʾ
			viewGroup.getChildAt(i).setFocusable(true);// ��ý���
			viewGroup.getChildAt(i).setClickable(true);// ���Ե��
		}

		Animation animation;
		/**
		 * ��ת���� RotateAnimation(fromDegrees, toDegrees, pivotXType, pivotXValue,
		 * pivotYType, pivotYValue) fromDegrees ��ʼ��ת�Ƕ� toDegrees ��ת���ĽǶ�
		 * pivotXType X�� ������ pivotXValue x�� ��ת�IJο��� pivotYType Y�� ������ pivotYValue
		 * Y�� ��ת�IJο���
		 */
		animation = new RotateAnimation(-180, 0, Animation.RELATIVE_TO_SELF,0.5f, Animation.RELATIVE_TO_SELF, 1.0f);
		animation.setFillAfter(true);// ͣ���ڶ�������λ��
		animation.setDuration(duration);

		viewGroup.startAnimation(animation);

	}
	// ������
	public static void startAnimationOUT(final ViewGroup viewGroup,
			int duration, int startOffSet)
	{
		Animation animation;
		animation = new RotateAnimation(0, -180, Animation.RELATIVE_TO_SELF,
				0.5f, Animation.RELATIVE_TO_SELF, 1.0f);
		animation.setFillAfter(true);// ͣ���ڶ�������λ��
		animation.setDuration(duration);
		animation.setStartOffset(startOffSet);
		animation.setAnimationListener(new AnimationListener()
		{

			@Override
			public void onAnimationStart(Animation animation)
			{
				// TODO Auto-generated method stub

			}

			@Override
			public void onAnimationRepeat(Animation animation)
			{
				// TODO Auto-generated method stub

			}

			@Override
			public void onAnimationEnd(Animation animation)
			{
				for (int i = 0; i < viewGroup.getChildCount(); i++)
				{
					viewGroup.getChildAt(i).setVisibility(View.GONE);// ������ʾ
					viewGroup.getChildAt(i).setFocusable(false);// ��ý���
					viewGroup.getChildAt(i).setClickable(false);// ���Ե��
				}

			}
		});
		viewGroup.startAnimation(animation);
	}
}