自定义搜索功能Android实现

package com.bzu.gxs.search.activity;

import android.app.activity;
import android.os.bundle;
import android.support.v7.widget.toolbar;
import android.view.view;
import android.widget.adapterview;
import android.widget.arrayadapter;
import android.widget.listview;
import android.widget.toast;

import com.bzu.gxs.search.r;
import com.bzu.gxs.search.adapter.searchadapter;
import com.bzu.gxs.search.bean.searchbean;
import com.bzu.gxs.search.widget.searchview;

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

/**
 * 搜索
 * created by gxs on 2016/5/6.
 */
public class searchactivity extends activity implements searchview.searchviewlistener{

 /**
  * 搜索结果列表view
  */
 private listview lvresults;

 /**
  * 搜索view
  */
 private searchview searchview;

 /**
  * 热搜框列表adapter
  */
 private arrayadapter<string> hintadapter;

 /**
  * 自动补全列表adapter
  */
 private arrayadapter<string> autocompleteadapter;

 /**
  * 搜索结果列表adapter
  */
 private searchadapter resultadapter;

 private list<searchbean> dbdata;

 /**
  * 热搜版数据
  */
 private list<string> hintdata;

 /**
  * 搜索过程中自动补全数据
  */
 private list<string> autocompletedata;

 /**
  * 搜索结果的数据
  */
 private list<searchbean> resultdata;

 /**
  * 默认提示框显示项的个数
  */
 private static int default_hint_size = 4;

 /**
  * 提示框显示项的个数
  */
 private static int hintsize = default_hint_size;

 /**
  * 设置提示框显示项的个数
  *
  * @param hintsize 提示框显示个数
  */
 public static void sethintsize(int hintsize) {
  searchactivity.hintsize = hintsize;
 }

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  initdata();
  initviews();
 }

 /**
  * 初始化视图
  */
 private void initviews() {
  lvresults = (listview) findviewbyid(r.id.main_lv_search_results);
  searchview = (searchview) findviewbyid(r.id.main_search_layout);
  //设置监听
  searchview.setsearchviewlistener(this);
  //设置adapter
  searchview.settipshintadapter(hintadapter);
  searchview.setautocompleteadapter(autocompleteadapter);

  lvresults.setonitemclicklistener(new adapterview.onitemclicklistener() {
   @override
   public void onitemclick(adapterview<?> adapterview, view view, int position, long l) {
    toast.maketext(searchactivity.this, position + "", toast.length_short).show();
   }
  });
 }

 /**
  * 初始化数据
  */
 private void initdata() {
  //从数据库获取数据
  getdbdata();
  //初始化热搜版数据
  gethintdata();
  //初始化自动补全数据
  getautocompletedata(null);
  //初始化搜索结果数据
  getresultdata(null);
 }

 /**
  * 获取db 数据
  */
 private void getdbdata() {
  int size = 100;
  dbdata = new arraylist<>(size);
  for (int i = 0; i < size; i++) {
   dbdata.add(new searchbean(r.mipmap.ic_launcher, "andrion stuidy 起风了，" + (i + 1), "唯有努力才能生存！", i * 20 + 2 + ""));
  }
 }

 /**
  * 获取热搜版data 和adapter
  */
 private void gethintdata() {
  hintdata = new arraylist<>(hintsize);
  for (int i = 1; i <= hintsize; i++) {
   hintdata.add("andrion stuidy 起风了");
  }
  hintadapter = new arrayadapter<>(this, android.r.layout.simple_list_item_1, hintdata);
 }

 /**
  * 获取自动补全data 和adapter
  */
 private void getautocompletedata(string text) {
  if (autocompletedata == null) {
   //初始化
   autocompletedata = new arraylist<>(hintsize);
  } else {
   // 根据text 获取auto data
   autocompletedata.clear();
   for (int i = 0, count = 0; i < dbdata.size()
     && count < hintsize; i++) {
    if (dbdata.get(i).gettitle().contains(text.trim())) {
     autocompletedata.add(dbdata.get(i).gettitle());
     count++;
    }
   }
  }
  if (autocompleteadapter == null) {
   autocompleteadapter = new arrayadapter<>(this, android.r.layout.simple_list_item_1, autocompletedata);
  } else {
   autocompleteadapter.notifydatasetchanged();
  }
 }

 /**
  * 获取搜索结果data和adapter
  */
 private void getresultdata(string text) {
  if (resultdata == null) {
   // 初始化
   resultdata = new arraylist<>();
  } else {
   resultdata.clear();
   for (int i = 0; i < dbdata.size(); i++) {
    if (dbdata.get(i).gettitle().contains(text.trim())) {
     resultdata.add(dbdata.get(i));
    }
   }
  }
  if (resultadapter == null) {
   resultadapter = new searchadapter(this, resultdata, r.layout.item_search);
  } else {
   resultadapter.notifydatasetchanged();
  }
 }

 //当搜索框 文本改变时 触发的回调 ,更新自动补全数据
 @override
 public void onrefreshautocomplete(string text) {
  //更新数据
  getautocompletedata(text);
 }

 //点击搜索键时edit text触发的回调
 @override
 public void onsearch(string text) {
  //更新result数据
  getresultdata(text);
  lvresults.setvisibility(view.visible);
  //第一次获取结果 还未配置适配器
  if (lvresults.getadapter() == null) {
   //获取搜索数据 设置适配器
   lvresults.setadapter(resultadapter);
  } else {
   //更新搜索数据
   resultadapter.notifydatasetchanged();
  }
 }
}

package com.bzu.gxs.search.bean;

/**
 * created by gxs on 2016/5/9.
 */
public class searchbean {

 private int iconid;
 private string title;
 private string content;
 private string comments;

 public searchbean(int iconid,string title,string content,string comments){
  this.iconid=iconid;
  this.title=title;
  this.content=content;
  this.comments=comments;
 }

 public int geticonid() {
  return iconid;
 }

 public void seticonid(int iconid) {
  this.iconid = iconid;
 }

 public void settitle(string title) {
  this.title = title;
 }

 public string gettitle() {
  return title;
 }

 public string getcontent() {
  return content;
 }

 public void setcontent(string content) {
  this.content = content;
 }

 public string getcomments() {
  return comments;
 }

 public void setcomments(string comments) {
  this.comments = comments;
 }
}

package com.bzu.gxs.search.adapter;

import android.content.context;

import com.bzu.gxs.search.bean.searchbean;

import java.util.list;

import com.bzu.gxs.search.r;

/**
 * created by gxs on 2016/5/9.
 */
public class searchadapter extends commonadapter<searchbean> {

 public searchadapter(context context, list<searchbean> data, int layoutid) {
  super(context, data, layoutid);
 }

 @override
 public void convert(viewholder holder, int position) {

  holder.setimageresource(r.id.item_search_iv_icon,mdata.get(position).geticonid())
    .settext(r.id.item_search_tv_title,mdata.get(position).gettitle())
    .settext(r.id.item_search_tv_content,mdata.get(position).getcontent())
    .settext(r.id.item_search_tv_comments,mdata.get(position).getcomments());
 }
}

package com.bzu.gxs.search.adapter;

import android.content.context;
import android.view.view;
import android.view.viewgroup;
import android.widget.baseadapter;

import java.util.list;

/**
 * created by gxs on 2016/5/9.
 */
public abstract class commonadapter<t> extends baseadapter {

 protected context mcontext;
 protected list<t> mdata;
 protected int mlayoutid;

 public commonadapter(context context,list<t> data,int layoutid){
  mcontext = context;
  mdata = data;
  mlayoutid = layoutid;
 }


 @override
 public int getcount() {
  return mdata.size();
 }

 @override
 public object getitem(int position) {
  return mdata.get(position);
 }

 @override
 public long getitemid(int position) {
  return position;
 }

 @override
 public view getview(int position, view convertview, viewgroup parent) {

  viewholder holder = viewholder.getholder(mcontext,convertview,mlayoutid,parent,position);
  convert(holder,position);
  return holder.getconvertview();
 }

 /**
  * get holder convert
  */
 public abstract void convert(viewholder holder,int position);
}

package com.bzu.gxs.search.adapter;

import android.content.context;
import android.graphics.bitmap;
import android.util.sparsearray;
import android.view.layoutinflater;
import android.view.view;
import android.view.viewgroup;
import android.widget.imageview;
import android.widget.textview;

/**
 * created by gxs on 2016/5/9.
 */
public class viewholder {

 private sparsearray<view> mviews;
 private context mcontext;
 private view mconvertview;
 private int mposition;

 /**
  * 初始化 holder
  */
 public viewholder(context context, int layoutid, viewgroup parent, int position) {
  mconvertview = layoutinflater.from(context).inflate(layoutid,parent,false);
  mviews = new sparsearray<>();
  mposition = position;
  mconvertview.settag(this);
 }

 /**
  * 获取 viewholder
  */
 public static viewholder getholder(context context, view convertview,
          int layoutid, viewgroup parent, int position) {
  if(convertview == null){
   return new viewholder(context,layoutid,parent,position);
  }else{
   viewholder holder = (viewholder)convertview.gettag();
   holder.mposition = position;
   return holder;
  }
 }

 public view getconvertview(){
  return mconvertview;
 }

 /**
  * 获取 view
  */
 public <t extends view> t getview(int viewid){
  view view = mviews.get(viewid);
  if(view == null){
   view = mconvertview.findviewbyid(viewid);
   mviews.put(viewid,view);
  }
  return (t)view;
 }

 /**
  * 设置 text
  */
 public viewholder settext(int viewid, string text){
  textview tv = getview(viewid);
  tv.settext(text);
  return this;
 }

 /**
  * 设置图片资源
  */
 public viewholder setimageresource(int viewid,int resid){
  imageview iv = getview(viewid);
  iv.setimageresource(resid);
  return this;
 }

 /**
  * 设置图片 bitmap
  */
 public viewholder setimagebitmap(int viewid,bitmap bitmap){
  imageview iv = getview(viewid);
  iv.setimagebitmap(bitmap);
  return this;
 }
}

package com.bzu.gxs.search.widget;

import android.app.activity;
import android.content.context;
import android.text.editable;
import android.text.textwatcher;
import android.util.attributeset;
import android.view.keyevent;
import android.view.layoutinflater;
import android.view.view;
import android.view.inputmethod.editorinfo;
import android.view.inputmethod.inputmethodmanager;
import android.widget.adapterview;
import android.widget.arrayadapter;
import android.widget.button;
import android.widget.edittext;
import android.widget.imageview;
import android.widget.linearlayout;
import android.widget.listview;
import android.widget.textview;
import com.bzu.gxs.search.r;


public class searchview extends linearlayout implements view.onclicklistener {

 /**
  * 输入框
  */
 private edittext etinput;

 /**
  * 删除键
  */
 private imageview ivdelete;

 /**
  * 返回按钮
  */
 private button btnback;

 /**
  * 上下文对象
  */
 private context mcontext;

 /**
  * 弹出列表
  */
 private listview lvtips;

 /**
  * 提示adapter （推荐adapter）
  */
 private arrayadapter<string> mhintadapter;

 /**
  * 自动补全adapter 只显示名字
  */
 private arrayadapter<string> mautocompleteadapter;

 /**
  * 搜索回调接口
  */
 private searchviewlistener mlistener;

 /**
  * 设置搜索回调接口
  *
  * @param listener 监听者
  */
 public void setsearchviewlistener(searchviewlistener listener) {
  mlistener = listener;
 }

 public searchview(context context, attributeset attrs) {
  super(context, attrs);
  mcontext = context;
  layoutinflater.from(context).inflate(r.layout.activity_search, this);
  initviews();
 }

 private void initviews() {
  etinput = (edittext) findviewbyid(r.id.search_et_input);
  ivdelete = (imageview) findviewbyid(r.id.search_iv_delete);
  btnback = (button) findviewbyid(r.id.search_btn_back);
  lvtips = (listview) findviewbyid(r.id.search_lv_tips);

  lvtips.setonitemclicklistener(new adapterview.onitemclicklistener() {
   @override
   public void onitemclick(adapterview<?> adapterview, view view, int i, long l) {
    //set edit text
    string text = lvtips.getadapter().getitem(i).tostring();
    etinput.settext(text);
    etinput.setselection(text.length());
    //hint list view gone and result list view show
    lvtips.setvisibility(view.gone);
    notifystartsearching(text);
   }
  });

  ivdelete.setonclicklistener(this);
  btnback.setonclicklistener(this);

  etinput.addtextchangedlistener(new editchangedlistener());
  etinput.setonclicklistener(this);
  etinput.setoneditoractionlistener(new textview.oneditoractionlistener() {
   @override
   public boolean oneditoraction(textview textview, int actionid, keyevent keyevent) {
    if (actionid == editorinfo.ime_action_search) {
     lvtips.setvisibility(gone);
     notifystartsearching(etinput.gettext().tostring());
    }
    return true;
   }
  });
 }

 /**
  * 通知监听者 进行搜索操作
  * @param text
  */
 private void notifystartsearching(string text){
  if (mlistener != null) {
   mlistener.onsearch(etinput.gettext().tostring());
  }
  //隐藏软键盘
  inputmethodmanager imm = (inputmethodmanager) mcontext.getsystemservice(context.input_method_service);
  imm.togglesoftinput(0, inputmethodmanager.hide_not_always);
 }

 /**
  * 设置热搜版提示 adapter
  */
 public void settipshintadapter(arrayadapter<string> adapter) {
  this.mhintadapter = adapter;
  if (lvtips.getadapter() == null) {
   lvtips.setadapter(mhintadapter);
  }
 }

 /**
  * 设置自动补全adapter
  */
 public void setautocompleteadapter(arrayadapter<string> adapter) {
  this.mautocompleteadapter = adapter;
 }

 private class editchangedlistener implements textwatcher {
  @override
  public void beforetextchanged(charsequence charsequence, int i, int i2, int i3) {

  }

  @override
  public void ontextchanged(charsequence charsequence, int i, int i2, int i3) {
   if (!"".equals(charsequence.tostring())) {
    ivdelete.setvisibility(visible);
    lvtips.setvisibility(visible);
    if (mautocompleteadapter != null && lvtips.getadapter() != mautocompleteadapter) {
     lvtips.setadapter(mautocompleteadapter);
    }
    //更新autocomplete数据
    if (mlistener != null) {
     mlistener.onrefreshautocomplete(charsequence + "");
    }
   } else {
    ivdelete.setvisibility(gone);
    if (mhintadapter != null) {
     lvtips.setadapter(mhintadapter);
    }
    lvtips.setvisibility(gone);
   }

  }

  @override
  public void aftertextchanged(editable editable) {
  }
 }

 @override
 public void onclick(view view) {
  switch (view.getid()) {
   case r.id.search_et_input:
    lvtips.setvisibility(visible);
    break;
   case r.id.search_iv_delete:
    etinput.settext("");
    ivdelete.setvisibility(gone);
    break;
   case r.id.search_btn_back:
    ((activity) mcontext).finish();
    break;
  }
 }

 /**
  * search view回调方法
  */
 public interface searchviewlistener {

  /**
   * 更新自动补全内容
   *
   * @param text 传入补全后的文本
   */
  void onrefreshautocomplete(string text);

  /**
   * 开始搜索
   *
   * @param text 传入输入框的文本
   */
  void onsearch(string text);

 }

}

<linearlayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:background="#ffffff"
 tools:context=".activity.searchactivity"
 android:orientation="vertical">

 <com.bzu.gxs.search.widget.searchview
  android:id="@+id/main_search_layout"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:fitssystemwindows="true">
 </com.bzu.gxs.search.widget.searchview>

 

 <listview
  android:id="@+id/main_lv_search_results"
  android:layout_width="match_parent"
  android:layout_height="wrap_content">
 </listview>

</linearlayout>

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

 <linearlayout
  android:background="#e5e5e5"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:orientation="horizontal">

  <framelayout
   android:layout_weight="1"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_gravity="center_vertical">

   <edittext
    android:id="@+id/search_et_input"
    android:layout_gravity="center_vertical"
    android:layout_margin="10dp"
    android:drawableleft="@drawable/ic_search"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/search_edittext_shape"
    android:textsize="16sp"
    android:imeoptions="actionsearch"
    android:inputtype="text"
    android:hint="请输入搜索的内容"/>

   <imageview
    android:visibility="gone"
    android:layout_marginright="20dp"
    android:src="@drawable/ic_delete"
    android:id="@+id/search_iv_delete"
    android:layout_gravity="right|center_vertical"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>
  </framelayout>

  <button
   android:id="@+id/search_btn_back"
   android:layout_marginright="10dp"
   android:paddingleft="5dp"
   android:paddingright="10dp"
   android:layout_gravity="center_vertical"
   android:text="取消"
   android:textcolor="#ea5421"
   android:textsize="15sp"
   android:background="@null"
   android:layout_height="wrap_content"
   android:layout_width="50dp" />
 </linearlayout>

 <listview
  android:visibility="gone"
  android:id="@+id/search_lv_tips"
  android:background="#ffffff"
  android:layout_marginbottom="10dp"
  android:layout_width="match_parent"
  android:layout_height="600dp">
 </listview>
</linearlayout>

<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:background="#ffffff"
 android:layout_margin="10dp"
 android:layout_margintop="5dp">
 <imageview
  android:src="@mipmap/ic_launcher"
  android:id="@+id/item_search_iv_icon"
  android:layout_marginleft="20dp"
  android:layout_centervertical="true"
  android:layout_width="60dp"
  android:layout_height="60dp"/>
 <textview
  android:id="@+id/item_search_tv_title"
  android:layout_margintop="15dp"
  android:layout_marginleft="10dp"
  android:layout_torightof="@id/item_search_iv_icon"
  android:text="title"
  android:textsize="15sp"
  android:textcolor="#000"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
 <textview
  android:id="@+id/item_search_tv_content"
  android:layout_marginleft="10dp"
  android:layout_marginbottom="10dp"
  android:layout_marginright="50dp"
  android:layout_torightof="@id/item_search_iv_icon"
  android:layout_below="@id/item_search_tv_title"
  android:text="content"
  android:textsize="14sp"
  android:textcolor="#777"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"/>
 <textview
  android:id="@+id/item_search_tv_comments"
  android:layout_marginright="20dp"
  android:layout_alignparentright="true"
  android:layout_centervertical="true"
  android:text="title"
  android:singleline="true"
  android:textsize="14sp"
  android:textcolor="#777"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>

</relativelayout>