Android ViewPager欢迎页+引导页+进入首页

 import android.app.Activity;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
 import android.os.Bundle;
 import android.os.Handler;

 /** 欢迎界面 */
 public class WelcomeAct extends Activity {

     private boolean isFirstIn = false;
     private static final int TIME = 2000;
     private static final int GO_HOME = 1000;
     private static final int GO_GUIDE = 1001;

     private Handler mHandler = new Handler() {
         public void handleMessage(android.os.Message msg) {
             switch (msg.what) {
             // 跳入主界面
             case GO_HOME:
                 goHome();
                 break;
             // 跳入引导页
             case GO_GUIDE:
                 goGuide();
                 break;
             }
         };
     };

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.welcome);
         init();
     }

     private void init() {
         SharedPreferences perPreferences = getSharedPreferences("jike",
                 MODE_PRIVATE);
         isFirstIn = perPreferences.getBoolean("isFirstIn", true);
         if (!isFirstIn) {
             mHandler.sendEmptyMessageDelayed(GO_HOME, TIME);
         } else {
             mHandler.sendEmptyMessageDelayed(GO_GUIDE, TIME);
             Editor editor = perPreferences.edit();
             editor.putBoolean("isFirstIn", false);
             editor.commit();
         }
     }

     private void goHome() {
         Intent i = new Intent(WelcomeAct.this, MainActivity.class);
         startActivity(i);
         finish();
     }

     private void goGuide() {
         Intent i = new Intent(WelcomeAct.this, Guide.class);
         startActivity(i);
         finish();
     }

 }

 import java.util.ArrayList;
 import java.util.List;
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
 import android.support.v4.view.ViewPager;
 import android.support.v4.view.ViewPager.OnPageChangeListener;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.ImageView;

 /** 引导页 */
 public class Guide extends Activity implements OnPageChangeListener {

     private ViewPager vp;
     private ViewPagerAdapter vpAdapter;
     private List<View> views;
     private ImageView[] dots;
     private int[] ids = { R.id.iv1, R.id.iv2, R.id.iv3 };
     private Button start_btn;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.guide);
         initViews();
         initDots();
     }

     private void initViews() {
         LayoutInflater inflater = LayoutInflater.from(this);

         views = new ArrayList<View>();
         views.add(inflater.inflate(R.layout.one, null));
         views.add(inflater.inflate(R.layout.two, null));
         views.add(inflater.inflate(R.layout.three, null));

         vpAdapter = new ViewPagerAdapter(views, this);
         vp = (ViewPager) findViewById(R.id.viewpager);
         vp.setAdapter(vpAdapter);
         // 下标从0开始，所以第三个页面是get(2)。
         start_btn = (Button) views.get(2).findViewById(R.id.start_btn);
         start_btn.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View arg0) {
                 Intent i = new Intent(Guide.this, MainActivity.class);
                 startActivity(i);
                 finish();
             }
         });
         vp.setOnPageChangeListener(this);
     }

     /** 循环设置点 */
     private void initDots() {
         dots = new ImageView[views.size()];
         for (int i = 0; i < views.size(); i++) {
             dots[i] = (ImageView) findViewById(ids[i]);
         }
     }

     @Override  /** 滑动状态改变的时候 */
     public void onPageScrollStateChanged(int arg0) {
         // TODO Auto-generated method stub
     }

     @Override  /** 当页面被滑动时候调用 */
     public void onPageScrolled(int arg0, float arg1, int arg2) {
         // TODO Auto-generated method stub
     }

     @Override  /** 当前新的页面被选中时调用 */
     public void onPageSelected(int arg0) {
         for (int i = 0; i < ids.length; i++) {
             if (arg0 == i) {
                 // 亮点
                 dots[i].setImageResource(R.drawable.login_point_selected);
             } else {
                 // 暗点
                 dots[i].setImageResource(R.drawable.login_point);
             }
         }
     }

 }

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent" >

     <android.support.v4.view.ViewPager
         android:id="@+id/viewpager"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:background="#00000000" >
     </android.support.v4.view.ViewPager>

     <!-- 底部三个点 -->
     <LinearLayout
         android:id="@+id/ll"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
         android:gravity="center_horizontal"
         android:orientation="horizontal" >
         <!-- 选中点 -->
         <ImageView
             android:id="@+id/iv1"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:src="@drawable/login_point_selected" />
         <!-- 未选中点 -->
         <ImageView
             android:id="@+id/iv2"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:src="@drawable/login_point" />
         <!-- 未选中点 -->
         <ImageView
             android:id="@+id/iv3"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:src="@drawable/login_point" />
     </LinearLayout>

 </RelativeLayout>

DEMO下载：http://pan.baidu.com/s/1i3vHoLv