Android Open Source - Android-Search-ListView-using-Filter Main Activity

• Back to UI ListView/listview  ↑

From Project

Back to project page Android-Search-ListView-using-Filter.

License

The source code is released under:

Apache License

Java Source Code

package com.androidbegin.filterlistviewtutorial;
/*www . j a v a 2 s . c  o  m*/
import java.util.ArrayList;
import java.util.Locale;

import android.os.Bundle;
import android.app.Activity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.widget.EditText;
import android.widget.ListView;

public class MainActivity extends Activity {

  // Declare Variables
  ListView list;
  ListViewAdapter adapter;
  EditText editsearch;
  String[] rank;
  String[] country;
  String[] population;
  ArrayList<WorldPopulation> arraylist = new ArrayList<WorldPopulation>();

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.listview_main);

    // Generate sample data
    rank = new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" };

    country = new String[] { "China", "India", "United States",
        "Indonesia", "Brazil", "Pakistan", "Nigeria", "Bangladesh",
        "Russia", "Japan" };

    population = new String[] { "1,354,040,000", "1,210,193,422",
        "315,761,000", "237,641,326", "193,946,886", "182,912,000",
        "170,901,000", "152,518,015", "143,369,806", "127,360,000" };

    // Locate the ListView in listview_main.xml
    list = (ListView) findViewById(R.id.listview);

    for (int i = 0; i < rank.length; i++) 
    {
      WorldPopulation wp = new WorldPopulation(rank[i], country[i],
          population[i]);
      // Binds all strings into an array
      arraylist.add(wp);
    }

    // Pass results to ListViewAdapter Class
    adapter = new ListViewAdapter(this, arraylist);
    
    // Binds the Adapter to the ListView
    list.setAdapter(adapter);
    
    // Locate the EditText in listview_main.xml
    editsearch = (EditText) findViewById(R.id.search);

    // Capture Text in EditText
    editsearch.addTextChangedListener(new TextWatcher() {

      @Override
      public void afterTextChanged(Editable arg0) {
        // TODO Auto-generated method stub
        String text = editsearch.getText().toString().toLowerCase(Locale.getDefault());
        adapter.filter(text);
      }

      @Override
      public void beforeTextChanged(CharSequence arg0, int arg1,
          int arg2, int arg3) {
        // TODO Auto-generated method stub
      }

      @Override
      public void onTextChanged(CharSequence arg0, int arg1, int arg2,
          int arg3) {
        // TODO Auto-generated method stub
      }
    });
  }

  // Not using options menu in this tutorial
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_main, menu);
    return true;
  }
}

Java Source Code List

• Back to UI ListView/listview  ↑