List View with Search Example

Hello friends Today I will write a code for list view with search step by step :

STEP 1:  Write this code in MainActivity 

package com.ritesh.listviewsearch;

import java.util.ArrayList;
import java.util.HashMap;

import android.os.Bundle;
import android.app.Activity;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity implements TextWatcher, OnItemClickListener {
private ArrayList<HashMap<String,String>> listhash;
private ArrayList<HashMap<String,String>> listhash_second;
private ListView listset;
private EditText edittext;
private ListViewAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
edittext=(EditText)findViewById(R.id.editText_search);
listset=(ListView)findViewById(R.id.list);
listhash=new ArrayList<HashMap<String,String>>();
listhash_second=new ArrayList<HashMap<String,String>>();
//Insert Data
for (int i = 0; i < 20; i++) {
HashMap<String, String> map=new HashMap<String, String>();
map.put("name", i+"ritesh");
map.put("phone", "99999999:"+i);
   listhash.add(map);
   listhash_second.add(map);
}
for (int i = 0; i < 20; i++) {
HashMap<String, String> map=new HashMap<String, String>();
map.put("name", i+"android");
map.put("phone", "9656599:"+i);
   listhash.add(map);
   listhash_second.add(map);
}
adapter=new ListViewAdapter(MainActivity.this,listhash);
listset.setAdapter(adapter);
listset.setOnItemClickListener(this);
edittext.addTextChangedListener(this);
}

@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub

}

@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

  int textlength = arg3+1;

  String textstring =String.valueOf(arg0);
   
 Log.d("textlength", ""+textlength);
 Log.d("textstring", ""+textstring);
 listhash.clear();
for (int i = 0; i < listhash_second.size(); i++) {
String name = listhash_second.get(i).get("name");

if (textlength <= name.length()) {

if(name.contains(edittext.getText().toString()))
{
listhash.add(listhash_second.get(i));
}  }
  }
adapter.notifyDataSetChanged();



}

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, listhash.get(arg2).get("name"), Toast.LENGTH_LONG).show();
}
}

STEP 2:  Write this code in ListViewAdapter

package com.ritesh.listviewsearch;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class ListViewAdapter extends BaseAdapter{
LayoutInflater layoutinflater;
ArrayList<HashMap<String, String>> listhash;
Activity activity;
private ViewHolder holder;

public ListViewAdapter(Activity activity,
ArrayList<HashMap<String, String>> listhash) {
// TODO Auto-generated constructor stub
this.listhash=listhash;
this.activity=activity;
this.layoutinflater=LayoutInflater.from(activity);
}

private class ViewHolder {
public TextView tvname;
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return listhash.size();
}

@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}

@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {

if (convertView == null) {
convertView = layoutinflater.inflate(R.layout.list_item,
null);
holder = new ViewHolder();
holder.tvname = (TextView) convertView
.findViewById(R.id.text_name);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvname.setText(listhash.get(position).get("name"));


return convertView;
}


}

STEP 3 : Write this code in activity_main.xml

<RelativeLayout 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" >

    <EditText

        android:id="@+id/editText_search"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginLeft="25dp"

        android:layout_marginRight="25dp"

        android:layout_alignParentTop="true"

        android:hint="Search Name"

        android:layout_centerHorizontal="true"

        android:ems="10" >

       

    </EditText>

    <ListView

        android:id="@+id/list"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_below="@+id/editText_search"

        android:layout_centerHorizontal="true"

        

         android:cacheColorHint="@android:color/transparent" 

        android:layout_marginTop="4dp" >

    </ListView>

   

</RelativeLayout>

STEP 4 : Write this code in list_item.xml

<?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="50dp"

    android:orientation="vertical" >

    <TextView

        android:id="@+id/text_name"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_centerVertical="true"

        android:layout_marginLeft="56dp"

        android:text="Name"

        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

STEP 5 : Write this code in manifest file

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ritesh.listviewsearch"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="8" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.ritesh.listviewsearch.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Run the Project....