Multiple Search

Android Programming (3rd Edition) 27. Search
1

This is a search for just one word to find many words. Use the sign, divided into individual words.

package com.example.vish.offlin

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edictionarydemo;

import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.SearchView;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;

/**

  • Created by VisH on 18-10-2016.
    */
    public class Dictionary extends AppCompatActivity {

    private Button button;

         ImageView imageView,imageView1;

    private static RecyclerView.Adapter adapter;
    private RecyclerView.LayoutManager layoutManager;
    private static RecyclerView recyclerView;
    public static ArrayList data;
    DatabaseHelper db ;
    ArrayList wordcombimelist;
    ArrayList meancombimelist;
    LinkedHashMap<String,String> namelist;
    SearchView searchView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

     recyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
 recyclerView.setHasFixedSize(true);
 db= new DatabaseHelper(this);
 searchView = (SearchView) findViewById(R.id.searchView);
 searchView.setQueryHint("ชื่อสินค้า");
 searchView.setQueryRefinementEnabled(true);
 layoutManager = new LinearLayoutManager(this);
 recyclerView.setLayoutManager(layoutManager);
 recyclerView.setItemAnimator(new DefaultItemAnimator());
 data = new ArrayList<DictObjectModel>();
 fetchData();
 button = (Button) findViewById (R.id.button);

 imageView1 = (ImageView) findViewById(R.id.img_tool_mic);

 imageView = (ImageView) findViewById(R.id.ihome);
 imageView.setOnClickListener(new View.OnClickListener() {

     @Override
     public void onClick(View v) {
         Intent i = new Intent(getApplicationContext(), MenuUser.class);
         startActivity(i);
         finish();
     }
 });






 searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
     @Override
     public boolean onQueryTextSubmit(String query) {return  false; }

     @Override
     public boolean onQueryTextChange(String newText) {


         newText = newText.toLowerCase();

         final ArrayList<DictObjectModel> filteredList = new ArrayList<DictObjectModel>();

         for (int i = 0; i < wordcombimelist.size(); i++) {

             final String text = wordcombimelist.get(i).toLowerCase();
             if (text.contains(newText)) {

                 filteredList.add(new DictObjectModel(wordcombimelist.get(i),meancombimelist.get(i)));
             }
         }
         adapter = new CustomAdapter(filteredList);
         recyclerView.setAdapter(adapter);


         return true;
     }
 });
 imageView1.setOnClickListener(new View.OnClickListener() {
     @Override
     public void onClick(View v) {
         Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
         intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
         intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.ENGLISH);
         try{
             startActivityForResult(intent,200);
         }catch (ActivityNotFoundException a){
             Toast.makeText(getApplicationContext(),"Intent problem", Toast.LENGTH_SHORT).show();
         }
     }
 });

    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode == 200){
    if(resultCode == RESULT_OK && data != null){
    ArrayList result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);

         }
 }

    }

    public void fetchData()
    {
    db =new DatabaseHelper(this);
    try {

         db.createDataBase();
     db.openDataBase();

 }
 catch (Exception e)
 {
     e.printStackTrace();
 }


 namelist=new LinkedHashMap<>();
 int ii;
 SQLiteDatabase sd = db.getReadableDatabase();
 Cursor cursor = sd.query("Dictionary1" ,null, null, null, null, null, null);
 ii=cursor.getColumnIndex("word");
 wordcombimelist=new ArrayList<String>();
 meancombimelist= new ArrayList<String>();
 while (cursor.moveToNext()){
     namelist.put(cursor.getString(ii), cursor.getString(cursor.getColumnIndex("definition")));
 }
 Iterator entries = namelist.entrySet().iterator();
 while (entries.hasNext()) {
     Map.Entry thisEntry = (Map.Entry) entries.next();
     wordcombimelist.add(String.valueOf(thisEntry.getKey()));
     meancombimelist.add("- "+String.valueOf(thisEntry.getValue()));
 }

 for (int i = 0; i < wordcombimelist.size(); i++) {
     data.add(new DictObjectModel(wordcombimelist.get(i), meancombimelist.get(i)));
 }
 adapter = new CustomAdapter(data);
 recyclerView.setAdapter(adapter);

    }
    }