android引导页的实现 及跳转到主页面

第一个activity

package com.qualitypicture.activity;

import java.util.ArrayList;
import java.util.List;
import com.qualitypicture.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
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.util.DisplayMetrics;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;

public class GuideActivity extends Activity
{
 private ViewPager viewPager;
 private List<View> mImageViews; // 滑动的图片集合
 private int[] imageResId; // 图片ID
 private int currentItem = 0; // 当前图片的索引号
 private GestureDetector gestureDetector; // 用户滑动
 /** 记录当前分页ID */
 private int flaggingWidth;// 互动翻页所需滚动的长度是当前屏幕宽度的1/3

 @Override
 public void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  requestWindowFeature(Window.FEATURE_NO_TITLE);// 去掉标题栏
  setContentView(R.layout.guide_activity);

  gestureDetector = new GestureDetector(new GuideViewTouch());

  // 获取分辨率
  DisplayMetrics dm = new DisplayMetrics();
  getWindowManager().getDefaultDisplay().getMetrics(dm);
  flaggingWidth = dm.widthPixels / 3;
  imageResId = new int[]
  { R.drawable.pic_1, R.drawable.pic_2, R.drawable.pic_3, R.drawable.pic_4 };
  mImageViews = new ArrayList<View>();
  // 初始化图片资源
  LayoutInflater viewInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  // 0
  View convertView0 = viewInflater.inflate(R.layout.guide_item, null);
  LinearLayout linearLayout0 = (LinearLayout) convertView0.findViewById(R.id.guide_item);
  linearLayout0.setBackgroundResource(imageResId[0]);
  mImageViews.add(linearLayout0);
  // 1
  View convertView1 = viewInflater.inflate(R.layout.guide_item, null);
  LinearLayout linearLayout1 = (LinearLayout) convertView1.findViewById(R.id.guide_item);
  linearLayout1.setBackgroundResource(imageResId[1]);
  mImageViews.add(linearLayout1);
  // 2
  View convertView2 = viewInflater.inflate(R.layout.guide_item, null);
  LinearLayout linearLayout2 = (LinearLayout) convertView2.findViewById(R.id.guide_item);
  linearLayout2.setBackgroundResource(imageResId[2]);
  mImageViews.add(linearLayout2);
  // 3
  View convertView3 = viewInflater.inflate(R.layout.guide_item, null);
  LinearLayout linearLayout3 = (LinearLayout) convertView3.findViewById(R.id.guide_item);
  linearLayout3.setBackgroundResource(imageResId[3]);
  mImageViews.add(linearLayout3);
  // button监听
  Button btn = (Button) convertView3.findViewById(R.id.start);
  btn.setVisibility(View.VISIBLE);
  btn.setOnClickListener(new OnClickListener()
  {

   public void onClick(View v)
   {

    GoToMainActivity();
   }
  });

  viewPager = (ViewPager) findViewById(R.id.guide_view);
  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
 public boolean dispatchTouchEvent(MotionEvent event)
 {
  if (gestureDetector.onTouchEvent(event))
  {
   event.setAction(MotionEvent.ACTION_CANCEL);
  }
  return super.dispatchTouchEvent(event);
 }

 private class GuideViewTouch extends SimpleOnGestureListener
 {
  @Override
  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
  {
   if (currentItem == 3)
   {
    if (Math.abs(e1.getX() - e2.getX()) > Math.abs(e1.getY() - e2.getY()) && (e1.getX() - e2.getX() <= (-flaggingWidth) || e1.getX() - e2.getX() >= flaggingWidth))
    {
     if (e1.getX() - e2.getX() >= flaggingWidth)
     {
      GoToMainActivity();
      return true;
     }
    }
   }
   return false;
  }
 }

 /**
  * 进入主界面
  */
 void GoToMainActivity()
 {
  Intent intent = new Intent(GuideActivity.this, TabHostActivity.class);
  startActivity(intent);
  finish();
 }

 /**
  * 当ViewPager中页面的状态发生改变时调用
  *
  * @author Administrator
  *
  */
 private class MyPageChangeListener implements OnPageChangeListener
 {
  public void onPageSelected(int position)
  {
   currentItem = 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(mImageViews.get(arg1));
   return mImageViews.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)
  {

  }
 }

 @Override
 public boolean onKeyDown(int keyCode, KeyEvent event)
 {
  // TODO Auto-generated method stub
  if (keyCode == KeyEvent.KEYCODE_BACK)
  {
   GoToMainActivity();
   return false;
  }
  return super.onKeyDown(keyCode, event);
 }

}

布局文件

第一个

<?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.support.v4.view.ViewPager
        android:id="@+id/guide_view"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>

第二个

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/guide_item"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="5" />

    <Button
        android:id="@+id/start"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#00000000"
        android:text="@string/butTxt"
        android:textColor="#00000000"
        android:visibility="gone" >
    </Button>

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" />

</LinearLayout>

大家用的时候文件名要写对，好友图片也要相应的放到文件中去！

希望对大家有所帮助！