自定义搜索功能Android实现

先看看效果图：

源码下载：自定义搜索功能

代码：

SearchActivity.java

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;


public class SearchActivity extends Activity implements SearchView.SearchViewListener{

 
 private ListView lvResults;

 
 private SearchView searchView;

 
 private ArrayAdapter hintAdapter;

 
 private ArrayAdapter autoCompleteAdapter;

 
 private SearchAdapter resultAdapter;

 private List dbData;

 
 private List hintData;

 
 private List autoCompleteData;

 
 private List resultData;

 
 private static int DEFAULT_HINT_SIZE = 4;

 
 private static int hintSize = DEFAULT_HINT_SIZE;

 
 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();
 }

 
 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();
   }
  });
 }

 
 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);
 }

 
 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 + ""));
  }
 }

 
 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);
 }

 
 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();
  }
 }

 
 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();
  }
 }
}

SearchBean.java

package com.bzu.gxs.search.bean;


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;
 }
}

SearchAdapter.java

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;


public class SearchAdapter extends CommonAdapter {

 public SearchAdapter(Context context, List 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());
 }
}

CommonAdapter.java

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;


public abstract class CommonAdapter extends baseAdapter {

 protected Context mContext;
 protected List mData;
 protected int mLayoutId;

 public CommonAdapter(Context context,List 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();
 }

 
 public abstract void convert(ViewHolder holder,int position);
}

ViewHolder.java

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;


public class ViewHolder {

 private SparseArray mViews;
 private Context mContext;
 private View mConvertView;
 private int mPosition;

 
 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);
 }

 
 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;
 }

 
 public  T getView(int viewId){
  View view = mViews.get(viewId);
  if(view == null){
   view = mConvertView.findViewById(viewId);
   mViews.put(viewId,view);
  }
  return (T)view;
 }

 
 public ViewHolder setText(int viewId, String text){
  TextView tv = getView(viewId);
  tv.setText(text);
  return this;
 }

 
 public ViewHolder setImageResource(int viewId,int resId){
  ImageView iv = getView(viewId);
  iv.setImageResource(resId);
  return this;
 }

 
 public ViewHolder setImageBitmap(int viewId,Bitmap bitmap){
  ImageView iv = getView(viewId);
  iv.setImageBitmap(bitmap);
  return this;
 }
}

SearchView.java

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 {

 
 private EditText etInput;

 
 private ImageView ivDelete;

 
 private Button btnBack;

 
 private Context mContext;

 
 private ListView lvTips;

 
 private ArrayAdapter mHintAdapter;

 
 private ArrayAdapter mAutoCompleteAdapter;

 
 private SearchViewListener mListener;

 
 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;
   }
  });
 }

 
 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);
 }

 
 public void setTipsHintAdapter(ArrayAdapter adapter) {
  this.mHintAdapter = adapter;
  if (lvTips.getAdapter() == null) {
   lvTips.setAdapter(mHintAdapter);
  }
 }

 
 public void setAutoCompleteAdapter(ArrayAdapter 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;
  }
 }

 
 public interface SearchViewListener {

  
  void onRefreshAutoComplete(String text);

  
  void onSearch(String text);

 }

}

布局文件：

activity_main.xml

activity_search.xml

item_search.xml

以上就是本文的全部内容，希望能给大家一个参考，也希望大家多多支持考高分网。

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