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>