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>