GuideActivity.java引导界面：

import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
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.widget.ImageView;
import android.widget.LinearLayout;
import cn.eoe.leigo.splash.adapter.ViewPagerAdapter;/*** * */
public class GuideActivity extends Activity implements OnPageChangeListener {private ViewPager vp;private ViewPagerAdapter vpAdapter;private List<View> views;// 底部小点图片private ImageView[] dots;// 记录当前选中位置private int currentIndex;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.guide);// 初始化页面initViews();// 初始化底部小点initDots();}private void initViews() {LayoutInflater inflater = LayoutInflater.from(this);views = new ArrayList<View>();// 初始化引导图片列表views.add(inflater.inflate(R.layout.what_new_one, null));views.add(inflater.inflate(R.layout.what_new_two, null));views.add(inflater.inflate(R.layout.what_new_three, null));views.add(inflater.inflate(R.layout.what_new_four, null));// 初始化AdaptervpAdapter = new ViewPagerAdapter(views, this);vp = (ViewPager) findViewById(R.id.viewpager);vp.setAdapter(vpAdapter);// 绑定回调vp.setOnPageChangeListener(this);}private void initDots() {LinearLayout ll = (LinearLayout) findViewById(R.id.ll);dots = new ImageView[views.size()];// 循环取得小点图片for (int i = 0; i < views.size(); i++) {dots[i] = (ImageView) ll.getChildAt(i);dots[i].setEnabled(true);// 都设为灰色}currentIndex = 0;dots[currentIndex].setEnabled(false);// 设置为白色，即选中状态}private void setCurrentDot(int position) {if (position < 0 || position > views.size() - 1|| currentIndex == position) {return;}dots[position].setEnabled(false);dots[currentIndex].setEnabled(true);currentIndex = position;}// 当滑动状态改变时调用@Overridepublic void onPageScrollStateChanged(int arg0) {}// 当当前页面被滑动时调用@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {}// 当新的页面被选中时调用@Overridepublic void onPageSelected(int arg0) {// 设置底部小点选中状态setCurrentDot(arg0);}}

ViewPagerAdapter.java。ViewPager的适配器：

import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import cn.eoe.leigo.splash.MainActivity;
import cn.eoe.leigo.splash.R;/***/
public class ViewPagerAdapter extends PagerAdapter {// 界面列表private List<View> views;private Activity activity;private static final String SHAREDPREFERENCES_NAME = "first_pref";public ViewPagerAdapter(List<View> views, Activity activity) {this.views = views;this.activity = activity;}// 销毁arg1位置的界面@Overridepublic void destroyItem(View arg0, int arg1, Object arg2) {((ViewPager) arg0).removeView(views.get(arg1));}@Overridepublic void finishUpdate(View arg0) {}// 获得当前界面数@Overridepublic int getCount() {if (views != null) {return views.size();}return 0;}// 初始化arg1位置的界面@Overridepublic Object instantiateItem(View arg0, int arg1) {((ViewPager) arg0).addView(views.get(arg1), 0);if (arg1 == views.size() - 1) {ImageView mStartWeiboImageButton = (ImageView) arg0.findViewById(R.id.iv_start_weibo);mStartWeiboImageButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// 设置已经引导setGuided();goHome();}});}return views.get(arg1);}private void goHome() {// 跳转Intent intent = new Intent(activity, MainActivity.class);activity.startActivity(intent);activity.finish();}/*** * method desc：设置已经引导过了，下次启动不用再次引导*/private void setGuided() {SharedPreferences preferences = activity.getSharedPreferences(SHAREDPREFERENCES_NAME, Context.MODE_PRIVATE);Editor editor = preferences.edit();// 存入数据editor.putBoolean("isFirstIn", false);// 提交修改editor.commit();}// 判断是否由对象生成界面@Overridepublic boolean isViewFromObject(View arg0, Object arg1) {return (arg0 == arg1);}@Overridepublic void restoreState(Parcelable arg0, ClassLoader arg1) {}@Overridepublic Parcelable saveState() {return null;}@Overridepublic void startUpdate(View arg0) {}}

至于MainActivity随便了。

效果如下：

所以总结一下，我们可以使用ViewPager做什么：

1.程序使用导航，外加底部圆点的效果，这个在微信示例里介绍了

2.页卡滑动，加上菜单的效果，不管是之前的支持手势也支持底部图标点击的微信，还是今天的微博。

代码下载连接