Filtering Data Using EditText [Android]

"Mbak, tau caranya bikin search yang bisa berubah-ubah list datanya tergantung teks yang dimasukkin gak?"

Berawal dari pertanyaan itu waktu di lab, akhirnya aku cari-cari tutorialnya, dan dapat akhirnya di link ini. Dalam posting disana, memanfaatkan method TextChange. Berikut ini sintaksnya:

list_layout.xml

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

    <TextView
        android:id="@+id/labelList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="TextView" />

</LinearLayout>

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/labelList"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/str" />

    <EditText
        android:id="@+id/searchEditText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="22dp"
        android:ems="10" >

        <requestFocus />
    </EditText>

    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

activity_main.xml

Activity Java

import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
 private EditText seacrh;
 ArrayAdapter<String> dataAdapter = null;

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

  seacrh = (EditText) findViewById(R.id.searchEditText);
  updateList();
  seacrh.addTextChangedListener(new TextWatcher() {
   
   @Override
   public void onTextChanged(CharSequence s, int start, int before, int count) {
    // TODO Auto-generated method stub
    
   }
   
   @Override
   public void beforeTextChanged(CharSequence s, int start, int count,
     int after) {
    // TODO Auto-generated method stub
    
   }
   
   @Override
   public void afterTextChanged(Editable s) {
    
    dataAdapter.getFilter().filter(s.toString());
    
   }
  });

 }

 public void updateList() {

  // Array list
  List<String> name = new ArrayList<String>();
  name.add("Abimayu");
  name.add("Adewira");
  name.add("Afif S");
  name.add("Andes");
  name.add("Anik Richie");
  name.add("Azis Catur Laksono");
  name.add("Danang Nur");
  name.add("Dimas Adila");
  name.add("Dyah Fajar");
  name.add("Femy Dwi");
  name.add("Febrianti");
  name.add("Ismi U.K");
  name.add("Kartika Kusuma");
  name.add("Kusuma Winanti");
  name.add("Nasrokhah");
  name.add("Nonie Yunicasari");
  name.add("Nova Nurhuda");
  name.add("Nurlaela");
  name.add("Pipit Sulidar Fitri");
  name.add("Pratama");
  name.add("Puguh Hasta");
  name.add("Puji Laksono");
  name.add("Yode Arliando");
  name.add("Wahyu Noer Hidayat");
  

  // create an ArrayAdaptar from the String Array
  dataAdapter = new ArrayAdapter<String>(this, R.layout.list_layout, R.id.labelList,
    name);
  ListView listView = (ListView) findViewById(R.id.list);
  // Assign adapter to ListView
  listView.setAdapter(dataAdapter);

  // enables filtering for the contents of the given ListView
  listView.setTextFilterEnabled(true);

  listView.setOnItemClickListener(new OnItemClickListener() {

   @Override
   public void onItemClick(AdapterView<?> parent, View view,
     int position, long id) {
    // When clicked, show a toast with the TextView text
    Toast.makeText(getApplicationContext(),
      ((TextView) view).getText(), Toast.LENGTH_SHORT).show();

   }
  });
  // enables filtering for the contents of the given ListView
  listView.setTextFilterEnabled(true);
 }

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  getMenuInflater().inflate(R.menu.main, menu);
  return true;
 }

}