[android] 界面切换的简单动画

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXDelta="100%"
    android:toXDelta="0"
    android:duration="3000"
    >
</translate>

View child=new IndexView(this).getMemberView();
child.startAnimation(AnimationUtils.loadAnimation(this, R.anim.left_to_right));

package com.tsh.lottery.utils;

import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;

public class FadeUtil {
    /**
     * 淡出界面
     * @param view 界面
     * @param duration 执行时间
     */
    public static void fadeOut(final View view,long duration){
        AlphaAnimation alphaAnimation=new AlphaAnimation(1, 0);
        alphaAnimation.setDuration(duration);
        view.startAnimation(alphaAnimation);
        //监听动画结束，删除View元素
        alphaAnimation.setAnimationListener(new AnimationListener() {
            
            @Override
            public void onAnimationStart(Animation animation) {
            }
            
            @Override
            public void onAnimationRepeat(Animation animation) {
            }
            
            @Override
            public void onAnimationEnd(Animation animation) {
                ViewGroup vg=(ViewGroup) view.getParent();
                vg.removeView(view);
            }
        });
    }
    /**
     * 淡入界面
     * @param view 界面
     * @param delay 延迟时间
     * @param duration 执行时间
     */
    public static void fadeIn(View view,long delay,long duration){
        AlphaAnimation alphaAnimation=new AlphaAnimation(0, 1);
        //设置开始时间延迟
        alphaAnimation.setStartOffset(delay);
        alphaAnimation.setDuration(duration);
        view.startAnimation(alphaAnimation);
    }
}

FadeUtil.fadeOut(child, 2000);

FadeUtil.fadeIn(child, 2000,2000);