android4.0有个控件，就是viewpager，用来实现左右滑动效果的。我们具体来看看是如何使用的。
首先看一下效果图
3个tab，每个tab有个layout，滑动的时候指示滑动条跟着走（当然，我觉得这个滑动条可以用三张图片来实现，更简单点）。
具体的我们看代码吧，主页xml就是实现上面三个tabbar，滑动条和一个viewpager控件，如下：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="100.0dip" android:background="#FFFFFF" > <TextView android:id="@+id/text1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="页卡1" android:textColor="#000000" android:textSize="22.0dip" /> <TextView android:id="@+id/text2" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="页卡2" android:textColor="#000000" android:textSize="22.0dip" /> <TextView android:id="@+id/text3" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1.0" android:gravity="center" android:text="页卡3" android:textColor="#000000" android:textSize="22.0dip" /> </LinearLayout> <ImageView android:id="@+id/cursor" android:layout_width="fill_parent" android:layout_height="wrap_content" android:scaleType="matrix" android:src="@drawable/slide" /> <android.support.v4.view.ViewPager android:id="@+id/vPager" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:layout_weight="1.0" android:background="#000000" android:flipInterval="30" android:persistentDrawingCache="animation" /></LinearLayout>
然后主要是看代码里面怎么用的，viewpager需要一个adapter来适配里面的每个layout。
public class ViewPageDemoActivity extends Activity { private ViewPager mPager;// 页卡内容 private List<View> listViews; // Tab页面列表 private ImageView cursor;// 动画图片 private TextView t1, t2, t3;// 页卡头标 private int offset = 0;// 动画图片偏移量 private int currIndex = 0;// 当前页卡编号 private int bmpW;// 动画图片宽度 MyPagerAdapter adapter; LayoutInflater mInflater; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Log.i("Viewpage","--onCreate--"); initImageView(); initTextView(); initPageView(); } private void initPageView() { mInflater = getLayoutInflater(); listViews = new ArrayList<View>(); listViews.add(mInflater.inflate(R.layout.item1, null)); listViews.add(mInflater.inflate(R.layout.item2, null)); listViews.add(mInflater.inflate(R.layout.item3, null)); adapter = new MyPagerAdapter(listViews); mPager = (ViewPager) findViewById(R.id.vPager); mPager.setAdapter(adapter); mPager.setCurrentItem(0); mPager.setOnPageChangeListener(new MyOnPageChangeListener()); } private void initTextView() { t1 = (TextView) findViewById(R.id.text1); t2 = (TextView) findViewById(R.id.text2); t3 = (TextView) findViewById(R.id.text3); t1.setOnClickListener(new MyOnClickListener(0)); t2.setOnClickListener(new MyOnClickListener(1)); t3.setOnClickListener(new MyOnClickListener(2)); } private void initImageView() { cursor = (ImageView) findViewById(R.id.cursor); bmpW = BitmapFactory.decodeResource(getResources(), R.drawable.slide) .getWidth();// 获取图片宽度 DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); int screenW = dm.widthPixels;// 获取分辨率宽度 offset = (screenW / 3 - bmpW) / 2;// 计算偏移量 Matrix matrix = new Matrix(); matrix.postTranslate(offset, 0); cursor.setImageMatrix(matrix);// 设置动画初始位置 } private class MyOnClickListener implements View.OnClickListener { private int index = 0; public MyOnClickListener(int i) { index = i; } @Override public void onClick(View v) { // TODO Auto-generated method stub mPager.setCurrentItem(index); } } public class MyPagerAdapter extends PagerAdapter { public List<View> mListViews; public MyPagerAdapter(List<View> mListViews) { this.mListViews = mListViews; } public void destroyItem(View arg0, int arg1, Object arg2) { ((ViewPager) arg0).removeView(mListViews.get(arg1)); } public void finishUpdate(View arg0) { } @Override public int getCount() { return mListViews.size(); } @Override public Object instantiateItem(View arg0, int arg1) { ((ViewPager) arg0).addView(mListViews.get(arg1), 0); return mListViews.get(arg1); } @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) { } } public class MyOnPageChangeListener implements OnPageChangeListener { int one = offset * 2 + bmpW;// 页卡1 -> 页卡2 偏移量 int two = one * 2;// 页卡1 -> 页卡3 偏移量 @Override public void onPageSelected(int arg0) { Animation animation = null; switch (arg0) { case 0: if (currIndex == 1) { animation = new TranslateAnimation(one, 0, 0, 0); } else if (currIndex == 2) { animation = new TranslateAnimation(two, 0, 0, 0); } break; case 1: if (currIndex == 0) { animation = new TranslateAnimation(offset, one, 0, 0); } else if (currIndex == 2) { animation = new TranslateAnimation(two, one, 0, 0); } break; case 2: if (currIndex == 0) { animation = new TranslateAnimation(offset, two, 0, 0); } else if (currIndex == 1) { animation = new TranslateAnimation(one, two, 0, 0); } break; } currIndex = arg0; animation.setFillAfter(true);// True:图片停在动画结束位置 animation.setDuration(300); cursor.startAnimation(animation); } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { } @Override public void onPageScrollStateChanged(int arg0) { } }}当然，你需要为每个tab对应一个layout，就想上面的item1，item2，item3一样。
这样就能实现左右滑动的一个效果了。
顺便说一下，viewpager刚开始推出，还没加入到正式的sdk，需要一个额外的jar包，运行工程的时候导入一下jar包就好了。
源码见附件。