最近我尝试使用ViewPager+GridView实现的，看起来一切正常，废话不多说，具体代码如下：

如图是效果图

首先分析下思路

1.首先是怎么布局：整体是一个ViewPager将GridView作为一个View添加到ViewPager的adapter中，下方是圆点

<"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:background="#CDCDCD" > <RelativeLayout android:layout_width="match_parent" android:layout_height="200dp" android:background="#fff" > <android.support.v4.view.ViewPager android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="wrap_content" /> <LinearLayout android:id="@+id/points" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_marginBottom="10dp" android:gravity="center" android:orientation="horizontal" /> </RelativeLayout> </RelativeLayout>

2.接下来时作为ViewPager的item布局文件GridView，（如果最外层是RelativeLayout或线型布局等，会转换异常）

<"1.0" encoding="utf-8"?> <GridView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gridView" android:layout_width="match_parent" android:layout_height="wrap_content" android:numColumns="4"> </GridView>

3.是GridView适配器的编写，主要是注意数量如果一共有all=10条数据，每页最多max=8条的话，第一个页面就是个数是max=8，第二个就2个all-max

package com.item.jiejie.adapter; import java.util.List; import com.item.jiejie.ProdctBean; import com.item.jiejie.R; import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; /** * GridView加载数据的适配器 * @author Administrator * */ public class MyGridViewAdpter extends BaseAdapter{ private Context context; private List<ProdctBean> lists;//数据源 private int mIndex; // 页数下标，标示第几页，从0开始 private int mPargerSize;// 每页显示的最大的数量 public MyGridViewAdpter(Context context, List<ProdctBean> lists, int mIndex, int mPargerSize) { this.context = context; this.lists = lists; this.mIndex = mIndex; this.mPargerSize = mPargerSize; } /** * 先判断数据及的大小是否显示满本页lists.size() > (mIndex + 1)*mPagerSize * 如果满足，则此页就显示最大数量lists的个数 * 如果不够显示每页的最大数量，那么剩下几个就显示几个 */ @Override public int getCount() { // TODO Auto-generated method stub return lists.size() > (mIndex + 1) * mPargerSize ? mPargerSize : (lists.size() - mIndex*mPargerSize); } @Override public ProdctBean getItem(int arg0) { // TODO Auto-generated method stub return lists.get(arg0 + mIndex * mPargerSize); } @Override public long getItemId(int arg0) { // TODO Auto-generated method stub return arg0 + mIndex * mPargerSize; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub ViewHolder holder = null; if(convertView == null){ holder = new ViewHolder(); convertView = View.inflate(context, R.layout.item_view, null); holder.tv_name = (TextView)convertView.findViewById(R.id.item_name); holder.iv_nul = (ImageView)convertView.findViewById(R.id.item_image); convertView.setTag(holder); }else { holder = (ViewHolder)convertView.getTag(); } //重新确定position因为拿到的总是数据源，数据源是分页加载到每页的GridView上的 final int pos = position + mIndex * mPargerSize;//假设mPageSiez //假设mPagerSize=8，假如点击的是第二页（即mIndex=1）上的第二个位置item(position=1),那么这个item的实际位置就是pos=9 holder.tv_name.setText(lists.get(pos).getName() + ""); holder.iv_nul.setImageResource(lists.get(pos).getUrl()); //添加item监听 // convertView.setOnClickListener(new View.OnClickListener() { // // @Override // public void onClick(View arg0) { // // TODO Auto-generated method stub // Toast.makeText(context, "您点击了" + lists.get(pos).getName(), Toast.LENGTH_SHORT).show(); // } // }); return convertView; } static class ViewHolder{ private TextView tv_name; private ImageView iv_nul; } }

4.GridView的点击事件这里提供2种方法一种是在适配器用布局的点击事件来处理；第二种是Object obj = gridView.getItemAtPosition(position);来处理。

5.主程序将GridView作为View添加到ViewPager中 代码如下

package com.item.jiejie; import java.util.ArrayList; import java.util.List; import com.item.jiejie.adapter.MyGridViewAdpter; import com.item.jiejie.adapter.MyViewPagerAdapter; import android.app.Activity; import android.os.Bundle; import android.support.v4.view.ViewPager; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.GridView; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.Toast; /** * 实现仿美团首页导航栏布局分页效果 * @author Administrator * */ public class MyActivity extends Activity { private ViewPager viewPager; private LinearLayout group;//圆点指示器 private ImageView[] ivPoints;//小圆点图片的集合 private int totalPage; //总的页数 private int mPageSize = 8; //每页显示的最大的数量 private List<ProdctBean> listDatas;//总的数据源 private List<View> viewPagerList;//GridView作为一个View对象添加到ViewPager集合中 //private int currentPage;//当前页 private String[] proName = {"名称0","名称1","名称2","名称3","名称4","名称5", "名称6","名称7","名称8","名称9","名称10","名称11","名称12","名称13", "名称14","名称15","名称16","名称17","名称18","名称19"}; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.activity_my); //初始化控件 initView(); //添加业务逻辑 initData(); } private void initView() { // TODO Auto-generated method stub viewPager = (ViewPager)findViewById(R.id.viewpager); group = (LinearLayout)findViewById(R.id.points); listDatas = new ArrayList<ProdctBean>(); for(int i =0 ; i < proName.length; i++){ listDatas.add(new ProdctBean(proName[i], R.drawable.iv_driving)); } } private void initData() { // TODO Auto-generated method stub //总的页数向上取整 totalPage = (int) Math.ceil(listDatas.size() * 1.0 / mPageSize); viewPagerList = new ArrayList<View>(); for(int i = 0; i < totalPage; i++){ //每个页面都是inflate出一个新实例 final GridView gridView = (GridView)View.inflate(this, R.layout.item_gridview, null); gridView.setAdapter(new MyGridViewAdpter(this, listDatas, i, mPageSize)); //添加item点击监听 gridView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) { // TODO Auto-generated method stub Object obj = gridView.getItemAtPosition(position); if(obj != null && obj instanceof ProdctBean){ System.out.println(obj); Toast.makeText(MyActivity.this, ((ProdctBean)obj).getName(), Toast.LENGTH_SHORT).show(); } } }); //每一个GridView作为一个View对象添加到ViewPager集合中 viewPagerList.add(gridView); } //设置ViewPager适配器 viewPager.setAdapter(new MyViewPagerAdapter(viewPagerList)); //添加小圆点 ivPoints = new ImageView[totalPage]; for(int i = 0; i < totalPage; i++){ //循坏加入点点图片组 ivPoints[i] = new ImageView(this); if(i==0){ ivPoints[i].setImageResource(R.drawable.page_focuese); }else { ivPoints[i].setImageResource(R.drawable.page_unfocused); } ivPoints[i].setPadding(8, 8, 8, 8); group.addView(ivPoints[i]); } //设置ViewPager的滑动监听，主要是设置点点的背景颜色的改变 viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener(){ @Override public void onPageSelected(int position) { // TODO Auto-generated method stub //currentPage = position; for(int i=0 ; i < totalPage; i++){ if(i == position){ ivPoints[i].setImageResource(R.drawable.page_focuese); }else { ivPoints[i].setImageResource(R.drawable.page_unfocused); } } } }); } }

6.ViewPage的适配器代码

package com.item.jiejie.adapter; import java.util.List; import android.support.v4.view.PagerAdapter; import android.view.View; import android.view.ViewGroup; /** * ViewPage的适配器 * @author Administrator * */ public class MyViewPagerAdapter extends PagerAdapter{ private List<View> viewList;//View就二十GridView public MyViewPagerAdapter(List<View> viewList) { this.viewList = viewList; } @Override public int getCount() { // TODO Auto-generated method stub return viewList!=null ? viewList.size() : 0; } @Override public boolean isViewFromObject(View arg0, Object arg1) { // TODO Auto-generated method stub return arg0 == arg1; } /** * 将当前的View添加到ViewGroup容器中 * 这个方法，return一个对象，这个对象表明了PagerAdapter适配器选择哪个对象放在当前的ViewPage上 */ @Override public Object instantiateItem(ViewGroup container, int position) { // TODO Auto-generated method stub container.addView(viewList.get(position)); return viewList.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { // TODO Auto-generated method stub container.removeView((View) object); } }

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