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Android仿联系人列表分组悬浮列表实现,自己定义PinnedHeaderListView实现

效果
技术分享

(关于gif怎么生成的。我先录手机的屏幕得到mp4文件。然后用这个网址:https://cloudconvert.com/mp4-to-gif 进行的mp4转换gif,使用的时候须要又一次选择gif的大小,不然生成的gif图片太大了)

效果包含下面几个方面
1. 当组的头部从屏幕顶部消失。并且组还有成员在屏幕内的时候。组的头部悬浮在屏幕顶部,并且为红色背景(我设置的组的头部是黄色背景)
2. 当下一个组的头部滑到屏幕顶部与红色的悬浮头部挨着的时候。把红色的头部顶走(红色头部随下一个组的头部上滑而上滑,知道消失不见),终于悬浮的头部被替代
3. 点击header view,组头部,组内元素,footer view分别响应各自的点击事件

github地址:https://github.com/JimiSmith/PinnedHeaderListView
假设你希望先阅读源代码解析,看这里:http://blog.csdn.net/u010335298/article/details/51178179

思路


1.悬浮header的实现

通过得到当前应该悬浮的头部的view,调用listview的dispatchDraw方法,在Listview头部绘制悬浮头部

 @Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
        if(currentSectionHeader !=null){
            canvas.save();
            canvas.translate(0, currentSectionHeaderOffest);
            canvas.clipRect(0,0,currentSectionHeader.width,currentSectionHeader.height);
            currentSectionHeader.view.draw(canvas);
            canvas.restore();
        }
    }


2.悬浮header被顶出屏幕的实现:

通过改变变量currentSectionHeaderOffest来改变悬浮header的位置

if(nextIsSectionHeaderView.getTop() >= 0 && currentSectionHeader!=null && nextIsSectionHeaderView.getTop() < currentSectionHeader.height){
        currentSectionHeaderOffest = nextIsSectionHeaderView.getTop() - currentSectionHeader.height; // <0的哦
        Log.d(TAG,"move current section header view");
}
invalidate();


3.得到应该悬浮在顶部的view

遍历全部可见的view,得到第一个是组的头部的view的位置,组号,然后用adapter.getView(…)函数得到这个view

//遍历全部可见的部分找到nextSectionHeader;
View nextIsSectionHeaderView = null;
for(int i=firstVisibleItem;i<firstVisibleItem + visibleItemCount;i++){
     if(mAdapter.isSectionHeader(i)){
           nextIsSectionHeaderView  = getChildAt(i-firstVisibleItem);
           nextSectionHeader = new SectionHeader(mAdapter.getView(i,null,this),
                 i,mAdapter.getSectionId(i));
           break;
     }
}


4.监听listview的onScroll , 时刻更新数据

@Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        //重置currentSectionHeaderOffest
        currentSectionHeaderOffest = 0;
        headerCount = getHeaderViewsCount();
        if(mAdapter==null || mAdapter.getCount()<=0 || firstVisibleItem < headerCount){
            currentSectionHeader = null;
            nextSectionHeader = null;
            return;
        }
        firstVisibleItem = firstVisibleItem - headerCount ;
        //遍历全部可见的部分找到nextSectionHeader;
        View nextIsSectionHeaderView = null;
        for(int i=firstVisibleItem;i<firstVisibleItem + visibleItemCount;i++){
            if(mAdapter.isSectionHeader(i)){
                nextIsSectionHeaderView  = getChildAt(i-firstVisibleItem);
                nextSectionHeader = new SectionHeader(mAdapter.getView(i,null,this),
                        i,mAdapter.getSectionId(i));
                break;
            }
        }
        //得到currentSectionHeader
        //优化。当当前须要展示的和当前展示的不一致时。才new
        if(currentSectionHeader==null || currentSectionHeader.sectionId != mAdapter.getSectionId(firstVisibleItem)){
            currentSectionHeader = new SectionHeader(mAdapter.getSectionHeaderView(mAdapter.getSectionId(firstVisibleItem),null,this),
                    mAdapter.getSectionPosition(mAdapter.getSectionId(firstVisibleItem)),mAdapter.getSectionId(firstVisibleItem));
            currentSectionHeader.view.layout(0,0,currentSectionHeader.width,currentSectionHeader.height);//!!!!!一定不能少
        }
        //推断nextSectionHeader的位置,假设距离顶部高度小于currentSectionHeader高度,使currentSectionHeader向上推移动
        if(nextIsSectionHeaderView!=null ){

            if(nextIsSectionHeaderView.getTop() >= 0 && currentSectionHeader!=null && nextIsSectionHeaderView.getTop() < currentSectionHeader.height){
                currentSectionHeaderOffest = nextIsSectionHeaderView.getTop() - currentSectionHeader.height; // <0的哦
                Log.d(TAG,"move current section header view");
            }
            invalidate();
        }

    }


5.onItemClick的时候。注意header和footer的影响

/*********************************************************************************************
     *
     * 实现OnItemClickListener
     *
     **********************************************************************************************/
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        headerCount = getHeaderViewsCount();
        if(position < headerCount){
            if(mOnItemClickListener  !=null){
                mOnItemClickListener.onHeaderClick(parent, view, position, id);
            }
            return;
        }
        if(mAdapter!= null && position >= headerCount + mAdapter.getCount()){
            if(mOnItemClickListener  !=null){
                mOnItemClickListener.onFooterClick(parent, view, position - headerCount - mAdapter.getCount(), id);
            }
            return;
        }
        position = position - headerCount;

        int section = mAdapter.getSectionId(position);
        int positionInSection = mAdapter.getPositionIdInSection(position);

        if (mAdapter.isSectionHeader(position)) {
            if( mOnItemClickListener != null){
                mOnItemClickListener.onSectionClick(parent, view, section, id);
            }
        } else {
            if( mOnItemClickListener != null){
                mOnItemClickListener.onSectionItemClick(parent, view, section, positionInSection, id);
            }

        }
    }

    public void setOnMyItemClickListener(MyOnItemClickListener mOnItemClickListener){
        this.mOnItemClickListener = mOnItemClickListener;
    }

    public interface MyOnItemClickListener {

        void onSectionItemClick(AdapterView<?

> adapterView, View view, int section, int position, long id); void onSectionClick(AdapterView<?> adapterView, View view, int section, long id); void onHeaderClick(AdapterView<?

> adapterView, View view, int position, long id); void onFooterClick(AdapterView<?

> adapterView, View view, int position, long id); }


全部源代码:

1.CustomPinnedHeaderListView.java

package com.example.myapp.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.HeaderViewListAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;

import com.example.myapp.adapter.CustomPinnedHeaderListViewBaseAdapter;
import com.example.myapp.github.pinnedheaderlistview.SectionedBaseAdapter;

/**
 * Created by zyr
 * DATE: 16-4-12
 * Time: 下午7:58
 * Email: yanru.zhang@renren-inc.com
 */
public class CustomPinnedHeaderListView extends ListView implements AbsListView.OnScrollListener , AdapterView.OnItemClickListener{

    private final static String TAG = "CusPinnedHeaderListView";

    private Context mContext;

    private SectionHeader currentSectionHeader;

    private SectionHeader nextSectionHeader;

    private int currentSectionHeaderOffest ;

    private CustomPinnedHeaderListViewBaseAdapter mAdapter;

    private int mWidthMode;

    private int mHeightMode;

    private MyOnItemClickListener mOnItemClickListener;

    private int headerCount; //header view counts

    /*********************************************************************************************
     *
     * 构造函数
     *
     **********************************************************************************************/
    public CustomPinnedHeaderListView(Context context) {
        this(context, null);
    }

    public CustomPinnedHeaderListView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CustomPinnedHeaderListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mContext = context;
        setOnScrollListener(this);
        setOnItemClickListener(this);
    }

    @Override
    public void setAdapter(ListAdapter adapter) {
        super.setAdapter(adapter);
        if(adapter instanceof CustomPinnedHeaderListViewBaseAdapter){
            mAdapter = (CustomPinnedHeaderListViewBaseAdapter)adapter;
        }
        Log.d(TAG, "is my adapter null :" + (mAdapter == null));
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        mWidthMode = MeasureSpec.getMode(widthMeasureSpec);
        mHeightMode = MeasureSpec.getMode(heightMeasureSpec);
    }

    /*********************************************************************************************
     *
     * 实现OnScrollListener
     *
     **********************************************************************************************/

    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {

    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        //重置currentSectionHeaderOffest
        currentSectionHeaderOffest = 0;
        headerCount = getHeaderViewsCount();
        if(mAdapter==null || mAdapter.getCount()<=0 || firstVisibleItem < headerCount){
            currentSectionHeader = null;
            nextSectionHeader = null;
            return;
        }
        firstVisibleItem = firstVisibleItem - headerCount ;
        //遍历全部可见的部分找到nextSectionHeader;
        View nextIsSectionHeaderView = null;
        for(int i=firstVisibleItem;i<firstVisibleItem + visibleItemCount;i++){
            if(mAdapter.isSectionHeader(i)){
                nextIsSectionHeaderView  = getChildAt(i-firstVisibleItem);
                nextSectionHeader = new SectionHeader(mAdapter.getView(i,null,this),
                        i,mAdapter.getSectionId(i));
                break;
            }
        }
        //得到currentSectionHeader
        //优化,当当前须要展示的和当前展示的不一致时,才new
        if(currentSectionHeader==null || currentSectionHeader.sectionId != mAdapter.getSectionId(firstVisibleItem)){
            currentSectionHeader = new SectionHeader(mAdapter.getSectionHeaderView(mAdapter.getSectionId(firstVisibleItem),null,this),
                    mAdapter.getSectionPosition(mAdapter.getSectionId(firstVisibleItem)),mAdapter.getSectionId(firstVisibleItem));
            currentSectionHeader.view.layout(0,0,currentSectionHeader.width,currentSectionHeader.height);//!!!!!一定不能少
        }
        //推断nextSectionHeader的位置,假设距离顶部高度小于currentSectionHeader高度。使currentSectionHeader向上推移动
        if(nextIsSectionHeaderView!=null ){

            if(nextIsSectionHeaderView.getTop() >= 0 && currentSectionHeader!=null && nextIsSectionHeaderView.getTop() < currentSectionHeader.height){
                currentSectionHeaderOffest = nextIsSectionHeaderView.getTop() - currentSectionHeader.height; // <0的哦
                Log.d(TAG,"move current section header view");
            }
            invalidate();
        }

    }

    /*********************************************************************************************
     *
     * 实现dispatchDraw,最精髓的部分哦
     *
     **********************************************************************************************/

    @Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
//        Log.d(TAG, "is current section header null :" + (currentSectionHeader == null));
        if(currentSectionHeader !=null){
            canvas.save();
            canvas.translate(0, currentSectionHeaderOffest);
            canvas.clipRect(0, 0, currentSectionHeader.width, currentSectionHeader.height);
//            Log.d(TAG,"is current section header view null :" + (currentSectionHeader.view==null));
            currentSectionHeader.view.draw(canvas);
            canvas.restore();
        }
    }

    /*********************************************************************************************
     *
     * 实现OnItemClickListener
     *
     **********************************************************************************************/
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        headerCount = getHeaderViewsCount();
        if(position < headerCount){
            if(mOnItemClickListener  !=null){
                mOnItemClickListener.onHeaderClick(parent, view, position, id);
            }
            return;
        }
        if(mAdapter!= null && position >= headerCount + mAdapter.getCount()){
            if(mOnItemClickListener  !=null){
                mOnItemClickListener.onFooterClick(parent, view, position - headerCount - mAdapter.getCount(), id);
            }
            return;
        }
        position = position - headerCount;

        int section = mAdapter.getSectionId(position);
        int positionInSection = mAdapter.getPositionIdInSection(position);

        if (mAdapter.isSectionHeader(position)) {
            if( mOnItemClickListener != null){
                mOnItemClickListener.onSectionClick(parent, view, section, id);
            }
        } else {
            if( mOnItemClickListener != null){
                mOnItemClickListener.onSectionItemClick(parent, view, section, positionInSection, id);
            }

        }
    }

    public void setOnMyItemClickListener(MyOnItemClickListener mOnItemClickListener){
        this.mOnItemClickListener = mOnItemClickListener;
    }

    public interface MyOnItemClickListener {

        void onSectionItemClick(AdapterView<?> adapterView, View view, int section, int position, long id);

        void onSectionClick(AdapterView<?

> adapterView, View view, int section, long id); void onHeaderClick(AdapterView<?> adapterView, View view, int position, long id); void onFooterClick(AdapterView<?

> adapterView, View view, int position, long id); } /********************************************************************************************* * * inner class * **********************************************************************************************/ class SectionHeader{ public View view; public int sectionId; public int position; public int height; public int width; public SectionHeader(View view,int position,int sectionId){ this.view = view; this.position = position; this.sectionId = sectionId; int widthMeasureSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), mWidthMode); int heightMeasureSpec ; ViewGroup.LayoutParams layoutParams = this.view.getLayoutParams(); if (layoutParams != null && layoutParams.height > 0) { heightMeasureSpec = MeasureSpec.makeMeasureSpec(layoutParams.height, MeasureSpec.EXACTLY); } else { heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); } this.view.measure(widthMeasureSpec,heightMeasureSpec); this.height = this.view.getMeasuredHeight(); this.width = this.view.getMeasuredWidth(); this.view.setBackgroundColor(Color.RED); // Log.d(TAG,"width:" + this.width+ " height:" + this.height); } } }

2.CustomPinnedHeaderListViewBaseAdapter.java

package com.example.myapp.adapter;

import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

/**
 * Created by zyr
 * DATE: 16-4-12
 * Time: 下午8:02
 * Email: yanru.zhang@renren-inc.com
 */
public abstract class CustomPinnedHeaderListViewBaseAdapter extends BaseAdapter{

    private final static String TAG = "CusPHLVBaseAdapter";

    /*********************************************************************************************
     *
     * BaseAdapter , Adapter的接口
     *
     **********************************************************************************************/
    @Override
    public abstract int getCount() ;

    @Override
    public abstract Object getItem(int position) ;

    @Override
    public abstract long getItemId(int position) ;

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if(isSectionHeader(position)){
            Log.d(TAG,"p:" + position + "  s:" + getSectionId(position));
            return getSectionHeaderView(getSectionId(position) , convertView ,parent);
        } else{
            Log.d(TAG,"p:" + position + "  s:" + getSectionId(position) + "    pIns" + getPositionIdInSection(position));
            return getItemView(getSectionId(position) , getPositionIdInSection(position) , convertView , parent);
        }
    }

    @Override
    public abstract int getViewTypeCount() ;

    @Override
    public abstract int getItemViewType(int position) ;


    /*********************************************************************************************
     *
     * 一些必须实现的抽象放法
     *
     **********************************************************************************************/

    public abstract boolean isSectionHeader(int position) ;
    public abstract int getSectionId(int position) ;
    public abstract int getSectionPosition(int sectionId);
    public abstract View getSectionHeaderView(int section, View convertView, ViewGroup parent);
    public abstract int getSectionHeaderViewType(int section) ;
    public abstract int getPositionIdInSection(int position) ;
    public abstract Object getItem(int section, int positionInSection);
    public abstract long getItemId(int section, int positionInSection);
    public abstract int getSectionCount();
    public abstract int getCountInSection(int section);
    public abstract View getItemView(int section, int positionInSection, View convertView, ViewGroup parent);

}

3.CustomPinnedHeaderListViewAdapter.java

package com.example.myapp.adapter;

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.example.myapp.R;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

/**
 * Created by zyr
 * DATE: 16-4-12
 * Time: 下午9:05
 * Email: yanru.zhang@renren-inc.com
 */
public class CustomPinnedHeaderListViewAdapter extends CustomPinnedHeaderListViewBaseAdapter {

    private final static String TAG = "CusPHeaderLvAdapter";

    private Context mContext;

    private List<Section> sections = new ArrayList<>();

    private int counts;

    private int sectionCounts;

    private Random random;

    public final static int TYPE_SECTION_HEADER = 1;

    public final static int TYPE_SECTION_ITEM = 2;

    public final static int TYPE_SECTION_ITEM_COUNT = 3;//getViewTypeCount() > getItemViewType返回的值

    /*********************************************************************************************
     *
     * 构造函数
     *
     **********************************************************************************************/

    public CustomPinnedHeaderListViewAdapter(Context context){
        this.mContext = context;
        this.random = new Random();
        this.sectionCounts = 10;

        int position = 0;
        for(int i=0;i<sectionCounts;i++){
            Section section = new Section();
            int sectionItemCounts = random.nextInt(10) + 1;
            section.sectionItemCounts = sectionItemCounts;
            for(int j=0;j < sectionItemCounts;j++){
                Item item;
                if(j==0){
                    item = new Item(true,position,i,j,"section :" + i,"");
                }else {
                    item = new Item(false,position,i,j,"section :" + i,"item :" + j);
                }
                section.items.add(item);
                position++;
            }
            section.sectionId = i;
            section.sectionName = "section :" + i;
            counts = counts + section.sectionItemCounts;
            sections.add(section);
            Log.d(TAG,"----section id:" + section.sectionId + "   section counts:" + section.sectionItemCounts);
        }
    }

    @Override
    public int getCount() {
        return counts;
    }

    @Override
    public Object getItem(int position) {
        for(int i=0;i<sections.size();i++){
            Section section = sections.get(i);
            for(int j=0;j<section.sectionItemCounts;j++){
                Item item = section.items.get(j);
                if(item.position == position){
                    return item;
                }
            }
        }
        Log.e(TAG,"!!!!!!!!!!!!!!!" + "no find item when getItem");
        return null;
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public int getViewTypeCount() {
        return TYPE_SECTION_ITEM_COUNT;
    }

    @Override
    public int getItemViewType(int position) {
        for(int i=0;i<sections.size();i++){
            Section section = sections.get(i);
            for(int j=0;j<section.sectionItemCounts;j++){
                Item item = section.items.get(j);
                if(item.position == position){
                    if(item.isSectionHeader){
                        return TYPE_SECTION_HEADER;
                    }else{
                        return TYPE_SECTION_ITEM;
                    }
                }
            }
        }
        Log.e(TAG, "!!!!!!!!!!!!!!!" + "no find item when getItemViewType");
        return TYPE_SECTION_ITEM;
    }

    @Override
    public boolean isSectionHeader(int position) {
        for(int i=0;i<sections.size();i++){
            Section section = sections.get(i);
            for(int j=0;j<section.sectionItemCounts;j++){
                Item item = section.items.get(j);
                if(item.position == position){
                    if(item.isSectionHeader){
                        return true;
                    }else{
                        return false;
                    }
                }
            }
        }
        Log.e(TAG, "!!!!!!!!!!!!!!!" + "no find item when isSectionHeader");
        return false;
    }

    @Override
    public int getSectionId(int position) {
        for(int i=0;i<sections.size();i++){
            Section section = sections.get(i);
            for(int j=0;j<section.sectionItemCounts;j++){
                Item item = section.items.get(j);
                if(item.position == position){
                    return item.sectionId;
                }
            }
        }
        Log.e(TAG, "!!!!!!!!!!!!!!!" + "no find item when getSectionId");
        return -1;
    }

    @Override
    public int getSectionPosition(int sectionId) {
        for(int i=0;i<sections.size();i++){
            Section section = sections.get(sectionId);
            for(int j=0;j<section.sectionItemCounts;j++){
                if(section.items.get(j).isSectionHeader){
                    return section.items.get(j).position;
                }
            }
        }
        Log.e(TAG, "!!!!!!!!!!!!!!!" + "no find item when getSectionPosition");
        return -1;
    }

    @Override
    public View getSectionHeaderView(int section, View convertView, ViewGroup parent) {
        Log.d(TAG,"getSectionHeaderView section:" + section);
        SectionHeaderViewHolder sectionHeaderViewHolder;
        if(convertView == null){
            convertView = LayoutInflater.from(mContext).inflate(R.layout.custom_pinned_header_lv_section_header_layout,null);
            sectionHeaderViewHolder = new SectionHeaderViewHolder(convertView);
            convertView.setTag(sectionHeaderViewHolder);
        }else{
            sectionHeaderViewHolder = (SectionHeaderViewHolder)convertView.getTag();
        }
        Log.d(TAG,"getSectionHeaderView section:" + section);
        sectionHeaderViewHolder.sectionHeaderName.setText(sections.get(section).sectionName);
        return convertView;
    }

    @Override
    public int getSectionHeaderViewType(int section) {
        return 0;
    }

    @Override
    public int getPositionIdInSection(int position) {
        for(int i=0;i<sections.size();i++){
            Section section = sections.get(i);
            for(int j=0;j<section.sectionItemCounts;j++){
                Item item = section.items.get(j);
                if(item.position == position){
                    return item.positionInSection;
                }
            }
        }
        Log.e(TAG, "!!!!!!!!!!!!!!!" + "no find item when getPositionIdInSection");
        return -1;
    }

    @Override
    public Object getItem(int section, int positionInSection) {
        return sections.get(section).items.get(positionInSection);
    }

    @Override
    public long getItemId(int section, int positionInSection) {
        return sections.get(section).items.get(positionInSection).position;
    }

    @Override
    public int getSectionCount() {
        return sectionCounts;
    }

    @Override
    public int getCountInSection(int section) {
        return sections.get(section).sectionItemCounts;
    }

    @Override
    public View getItemView(int section, int positionInSection, View convertView, ViewGroup parent) {
        Log.d(TAG,"getItemView section:" + section + "    positionInSection :" + positionInSection);
        ItemViewHolder itemViewHolder;
        if(convertView == null){
            convertView = LayoutInflater.from(mContext).inflate(R.layout.custom_pinned_header_lv_section_item_layout,null);
            itemViewHolder = new ItemViewHolder(convertView);
            convertView.setTag(itemViewHolder);
        }else{
            itemViewHolder = (ItemViewHolder)convertView.getTag();
        }
        itemViewHolder.itemName.setText("p:" + sections.get(section).items.get(positionInSection).position + "  s:" + section + "  " + sections.get(section).items.get(positionInSection).itemName);
        return convertView;
    }

    /*********************************************************************************************
     *
     * 内部类
     *
     **********************************************************************************************/
    class Item{
        public boolean isSectionHeader;
        public int position;
        public int sectionId;
        public int positionInSection;
        public String sectionName;
        public String itemName;

        public Item(boolean isSectionHeader,int position,int sectionId,int positionInSection,String sectionName,String itemName){
            this.isSectionHeader = isSectionHeader;
            this.position = position;
            this.sectionId = sectionId;
            this.positionInSection = positionInSection;
            this.sectionName = sectionName;
            this.itemName = itemName;
        }
    }

    class Section{
        public List<Item> items = new ArrayList<>();
        public int sectionId ;
        public String sectionName ;
        public int sectionItemCounts ;
    }

    class ItemViewHolder{
        public TextView itemName;

        public ItemViewHolder(View view){
            itemName = (TextView) view.findViewById(R.id.tv);
        }
    }

    class SectionHeaderViewHolder{
        public TextView sectionHeaderName;

        public SectionHeaderViewHolder(View view){
            sectionHeaderName = (TextView) view.findViewById(R.id.tv);
        }
    }

}

4.CustomPinnedHeaderListViewTestActivity.java

package com.example.myapp.activity;

import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;

import com.example.myapp.R;
import com.example.myapp.adapter.CustomPinnedHeaderListViewAdapter;
import com.example.myapp.util.Methods;
import com.example.myapp.view.CustomPinnedHeaderListView;

/**
 * Created by zyr
 * DATE: 16-4-13
 * Time: 下午2:25
 * Email: yanru.zhang@renren-inc.com
 */
public class CustomPinnedHeaderListViewTestActivity extends BaseActivity{

    private CustomPinnedHeaderListView listView;

    private CustomPinnedHeaderListViewAdapter adapter;

    private View headerView;

    private View footerView;

    @Override
    protected void initView() {
        listView = (CustomPinnedHeaderListView)findViewById(R.id.lv);
        headerView = LayoutInflater.from(this).inflate(R.layout.cus_pinned_header_lv_header,null);
        footerView = LayoutInflater.from(this).inflate(R.layout.cus_pinned_header_lv_footer,null);
        listView.addHeaderView(headerView);
        listView.addFooterView(footerView);
        adapter = new CustomPinnedHeaderListViewAdapter(this);
        listView.setAdapter(adapter);
        listView.setOnMyItemClickListener(new CustomPinnedHeaderListView.MyOnItemClickListener() {
            @Override
            public void onSectionItemClick(AdapterView<?> adapterView, View view, int section, int position, long id) {
                Methods.toast(CustomPinnedHeaderListViewTestActivity.this,"s:" + section + "    item:" + position);
            }

            @Override
            public void onSectionClick(AdapterView<?> adapterView, View view, int section, long id) {
                Methods.toast(CustomPinnedHeaderListViewTestActivity.this,"s:" + section );
            }

            @Override
            public void onHeaderClick(AdapterView<?> adapterView, View view, int position, long id) {
                Methods.toast(CustomPinnedHeaderListViewTestActivity.this,"header:" + position );
            }

            @Override
            public void onFooterClick(AdapterView<?

> adapterView, View view, int position, long id) { Methods.toast(CustomPinnedHeaderListViewTestActivity.this,"footer:" + position); } }); } @Override protected int onSetContainerViewId() { return R.layout.activity_custom_pinned_header_lv; } @Override public void initListener() { } @Override public void onClick(View v) { } }

<script type="text/javascript"> $(function () { $(‘pre.prettyprint code‘).each(function () { var lines = $(this).text().split(‘\n‘).length; var $numbering = $(‘
    ‘).addClass(‘pre-numbering‘).hide(); $(this).addClass(‘has-numbering‘).parent().append($numbering); for (i = 1; i <= lines; i++) { $numbering.append($(‘
  • ‘).text(i)); }; $numbering.fadeIn(1700); }); }); </script>

Android仿联系人列表分组悬浮列表实现,自己定义PinnedHeaderListView实现