ViewPager实现漂亮的引导页

废话就不多说了，直接上效果图和代码

fry.activity01

package fry;

import java.util.arraylist;
import java.util.collection;
import java.util.iterator;
import java.util.list;
import java.util.listiterator;

import com.example.viewpager.r;

import android.app.activity;
import android.os.bundle;
import android.support.v4.view.viewpager;
import android.support.v4.view.viewpager.onpagechangelistener;
import android.view.view;
import android.view.view.onclicklistener;
import android.view.viewgroup.layoutparams;
import android.widget.imageview;
import android.widget.linearlayout;

public class activity01 extends activity implements onpagechangelistener,onclicklistener{
 private viewpager viewpager;
 private list<view> views;//用来存放放进viewpager里面的imageview
 private int[] imageid;//
 private imagepageradapter adapter;//适配器
 private linearlayout linearlayout;
 private int currentpoint;//当前被选中中页面的下标
 @override
 protected void oncreate(bundle savedinstancestate) {
  // todo auto-generated method stub
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity01);
  initdata();
  initview();
  
 }
 //初始化view
 void initview(){
  adapter=new imagepageradapter(views);
  viewpager=(viewpager) findviewbyid(r.id.viewpager);
  viewpager.setadapter(adapter);
  linearlayout=(linearlayout) findviewbyid(r.id.linearlayout);
  initpoint();
  viewpager.setonpagechangelistener(this);
 }
 
 //初始化数据
 void initdata(){
  //将图片的id全部放到imageid集合中
  imageid=new int[]{r.drawable.guide1,r.drawable.guide2,r.drawable.guide3,r.drawable.guide4};
  views=new arraylist<view>();
  //给iamgeview设置layoutparams参数
  layoutparams layoutparams=new layoutparams(layoutparams.match_parent, layoutparams.match_parent);
  for(int i:imageid){
   //不确定1
   imageview imageview=new imageview(this);
   imageview.setimageresource(i);
   imageview.setlayoutparams(layoutparams);
   views.add(imageview);
  }
  
  
 }
 
 /*
  * 初始化页面下方的点
  */
 private void initpoint(){
  imageview[] imageview=new imageview[imageid.length]; 
  for(int i=0;i<linearlayout.getchildcount();i++){
   imageview[i]=(imageview) linearlayout.getchildat(i);
   imageview[i].setimageresource(r.drawable.point_normal);
   imageview[i].setonclicklistener(this);
   imageview[i].settag(i);
  }
  currentpoint=0;
  imageview[currentpoint].setimageresource(r.drawable.point_select);
 }
 /*
  * 将页面下方的点全部置为未选中状态
  */
 private imageview[] clearpoint(){
  imageview[] imageview=new imageview[imageid.length]; 
  for(int i=0;i<linearlayout.getchildcount();i++){
   imageview[i]=(imageview) linearlayout.getchildat(i);
   imageview[i].setimageresource(r.drawable.point_normal);
  }
  return imageview;
 }

 @override
 public void onpagescrollstatechanged(int arg0) {
  // todo auto-generated method stub
  
 }

 @override
 public void onpagescrolled(int arg0, float arg1, int arg2) {
  // todo auto-generated method stub
  
 }

 /*
  * 页面被选中时候执行的方法
  * (non-javadoc)
  * @see android.support.v4.view.viewpager.onpagechangelistener#onpageselected(int)
  */
 @override
 public void onpageselected(int position) {
  // todo auto-generated method stub
  imageview[] imageview= clearpoint();
  imageview[position].setimageresource(r.drawable.point_select);
 }
 
 //小圆点点击事件
 @override
 public void onclick(view v) {
  // todo auto-generated method stub
  int i=(integer) v.gettag();
  viewpager.setcurrentitem(i);
 }
 
}

fry.imagepageradapter

package fry;

import java.util.arraylist;
import java.util.list;

import android.support.v4.view.pageradapter;
import android.support.v4.view.viewpager;
import android.view.view;
import android.view.viewgroup;

public class imagepageradapter extends pageradapter{

 private list<view> views;
 
 
 
 public imagepageradapter(list<view> views) {
  this.views=views;
 }

 @override
 public int getcount() {
  // todo auto-generated method stub
  return this.views.size();
 }
 /**
  * position是在viewpager中显示图片的位置
  * 我对应的图片放到对应的位置就好了
  * instantiateitem和destroyitem是对应的
  * 一个是创建item，一个是销毁item
  */
 @override
 public object instantiateitem(viewgroup container, int position) {
  ((viewpager)container).addview(views.get(position));
  return views.get(position);
 }

 @override
 public boolean isviewfromobject(view arg0, object arg1) {
  // todo auto-generated method stub
  return arg0==arg1;
 }

 @override
 public void destroyitem(viewgroup container, int position, object object) {
  ((viewpager)container).removeview(views.get(position));
 }

}

/viewpager/res/layout/activity01.xml

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

 <android.support.v4.view.viewpager
  android:id="@+id/viewpager"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  >
  
 </android.support.v4.view.viewpager>
 
 <linearlayout 
  android:id="@+id/linearlayout"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:orientation="horizontal"
  android:layout_gravity="bottom|center"
  >
  <imageview 
   android:id="@+id/point1"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:src="@drawable/point_select"
   android:padding="25dip"
   />
  <imageview 
   android:id="@+id/point2"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:src="@drawable/point_normal"
   android:padding="25dip"
   />
  <imageview 
   android:id="@+id/point3"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:src="@drawable/point_normal"
   android:padding="25dip"
   />
  <imageview 
   android:id="@+id/point4"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:src="@drawable/point_normal"
   android:padding="25dip"
   />
  
 </linearlayout>

</framelayout>

1、多个控件（这里指小圆点）可以用list来一起访问

2、可用动态的控件设置tag来区分控件

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。