本例是用ViewPager去做的实现，支持自动滑动和手动滑动，不仅优酷网，实际上有很多商城和门户网站都有类似的实现:

具体思路：

1. 工程中需要添加android-support-v4.jar,才能使用ViewPager控件.

2. 图片的自动切换: 可使用Timer或者ScheduledExecutorService,这个有多重方式可以实现.

    同时要切换底部的dots（园点）

3.Handler+Message机制更新UI,这个相信大家都很熟练，不再描述

4. 实现的一些细节:注意本例中的优化：图片的自动切换启动了其他的线程，要在Activity在可见到不可见的状态,也就是在onStop()方法中将线程停止，在onStart()方法中开启线程。否则，Timer没有停止，或者反复开启，会引起较大的内存消耗，时间一长就程序就会崩掉。 还有，就是在跳转到其他Activity的过程中会出现画面的卡顿

 

下面看一下效果图和具体代码:

            

 

 

工程结构如下图所示：

main.xml:

 

然后是具体的布局文件及代码实现:

main.xml:

MyViewPagerActivity:

package com.tony.viewpager;import java.util.ArrayList;import java.util.List;import java.util.concurrent.Executors;import java.util.concurrent.ScheduledExecutorService;import java.util.concurrent.TimeUnit;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Parcelable;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.view.View;import android.widget.ImageView;import android.widget.ImageView.ScaleType;import android.widget.TextView;/** * 仿优酷Android客户端图片左右滑动 *  */public class MyViewPagerActivity extends Activity {	private ViewPager viewPager; // android-support-v4中的滑动组件	private List
     
       imageViews; // 滑动的图片集合	private String[] titles; // 图片标题	private int[] imageResId; // 图片ID	private List
      
        dots; // 图片标题正文的那些点	private TextView tv_title;	private int currentItem = 0; // 当前图片的索引号	// An ExecutorService that can schedule commands to run after a given delay,	// or to execute periodically.	private ScheduledExecutorService scheduledExecutorService;	// 切换当前显示的图片	private Handler handler = new Handler() {		public void handleMessage(android.os.Message msg) {			viewPager.setCurrentItem(currentItem);// 切换当前显示的图片		};	};	@Override	public void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		imageResId = new int[] { R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d, R.drawable.e };		titles = new String[imageResId.length];		titles[0] = "巩俐不低俗，我就不能低俗";		titles[1] = "扑树又回来啦！再唱经典老歌引万人大合唱";		titles[2] = "揭秘北京电影如何升级";		titles[3] = "乐视网TV版大派送";		titles[4] = "热血屌丝的反杀";		imageViews = new ArrayList
       
        ();		// 初始化图片资源		for (int i = 0; i < imageResId.length; i++) {			ImageView imageView = new ImageView(this);			imageView.setImageResource(imageResId[i]);			imageView.setScaleType(ScaleType.CENTER_CROP);			imageViews.add(imageView);		}				dots = new ArrayList
        
         ();		dots.add(findViewById(R.id.v_dot0));		dots.add(findViewById(R.id.v_dot1));		dots.add(findViewById(R.id.v_dot2));		dots.add(findViewById(R.id.v_dot3));		dots.add(findViewById(R.id.v_dot4));		tv_title = (TextView) findViewById(R.id.tv_title);		tv_title.setText(titles[0]);//		viewPager = (ViewPager) findViewById(R.id.vp);		viewPager.setAdapter(new MyAdapter());// 设置填充ViewPager页面的适配器		// 设置一个监听器，当ViewPager中的页面改变时调用		viewPager.setOnPageChangeListener(new MyPageChangeListener());	}	@Override	protected void onStart() {		scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();		// 当Activity显示出来后，每两秒钟切换一次图片显示		scheduledExecutorService.scheduleAtFixedRate(new ScrollTask(), 1, 2, TimeUnit.SECONDS);		super.onStart();	}	@Override	protected void onStop() {		// 当Activity不可见的时候停止切换		scheduledExecutorService.shutdown();		super.onStop();	}	/**	 * 换行切换任务	 * 	 * @author Administrator	 * 	 */	private class ScrollTask implements Runnable {		public void run() {			synchronized (viewPager) {				System.out.println("currentItem: " + currentItem);				currentItem = (currentItem + 1) % imageViews.size();				handler.obtainMessage().sendToTarget(); // 通过Handler切换图片			}		}	}	/**	 * 当ViewPager中页面的状态发生改变时调用	 * 	 * @author Administrator	 * 	 */	private class MyPageChangeListener implements OnPageChangeListener {		private int oldPosition = 0;		/**		 * This method will be invoked when a new page becomes selected.		 * position: Position index of the new selected page.		 */		public void onPageSelected(int position) {			currentItem = position;			tv_title.setText(titles[position]);			dots.get(oldPosition).setBackgroundResource(R.drawable.dot_normal);			dots.get(position).setBackgroundResource(R.drawable.dot_focused);			oldPosition = position;		}		public void onPageScrollStateChanged(int arg0) {		}		public void onPageScrolled(int arg0, float arg1, int arg2) {		}	}	/**	 * 填充ViewPager页面的适配器	 * 	 * @author Administrator	 * 	 */	private class MyAdapter extends PagerAdapter {		@Override		public int getCount() {			return imageResId.length;		}		@Override		public Object instantiateItem(View arg0, int arg1) {			((ViewPager) arg0).addView(imageViews.get(arg1));			return imageViews.get(arg1);		}		@Override		public void destroyItem(View arg0, int arg1, Object arg2) {			((ViewPager) arg0).removeView((View) arg2);		}		@Override		public boolean isViewFromObject(View arg0, Object arg1) {			return arg0 == arg1;		}		@Override		public void restoreState(Parcelable arg0, ClassLoader arg1) {		}		@Override		public Parcelable saveState() {			return null;		}		@Override		public void startUpdate(View arg0) {		}		@Override		public void finishUpdate(View arg0) {		}	}}
        
       
      
     

Drawable目录下

btn_back_selector.xml:

btn_top_pressed.xml:

dot_focused.xml:

dot_normal.xml:

title_bk.xml:

源码下载地址: