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Monday 28 November 2016

Add Search Functionality in ListView in Android

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In this example , Today we are learning that how to add search functionality in ListView.

 Implement Search Functionality in ListView will filters the list data with a matching string, So it will be easy for user to search any data very quickly from large data ListView.

 Now We are discussing about how to implement search functionality in ListView

 First of all, Create a new project from menu.For listview , we are using default xml file activity_main.xml and  for Single list item create a new xml file named list_item.xml.

 File Name : activity_main.xml

 
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
     
    <EditText android:id="@+id/search"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="Search product"
      />
    
    <ListView
        android:id="@+id/list_view"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />
  
</LinearLayout>

File Name : list_item.xml

 


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<?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" >
     
    <!-- List Item Of Product -->
    <TextView android:id="@+id/product_name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:padding="10dip"
        android:textSize="16dip"
        android:textStyle="bold"/>    
 
</LinearLayout>


Now, Open Your MainActivity.java file and copy the following code and paste in your file.

File Name : MainActivity.java

 

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package com.example.addsearchlistview;

import java.util.ArrayList;
import java.util.HashMap;
 
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;


public class MainActivity extends Activity {

    ListView lv;
    ArrayAdapter<String> adapter;
    EditText search;
    ArrayList<HashMap<String, String>> productList; //ArrayList for Listview
 
 
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

 
   //Item of ListView
        String products[] = {"Lenovo", "Moto", "HTC", "iPhone", "Blackberry",
                                "Samsung", "OnePlus",
                                "LeEco", "Honor", "Micromax", "Xolo"};
         
        lv = (ListView) findViewById(R.id.list_view);
        search = (EditText) findViewById(R.id.search);
 
        //Add Item in ListView
        adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
        lv.setAdapter(adapter);
         
        // To Enabling Search Functionality
        search.addTextChangedListener(new TextWatcher() {
            
            @Override
            public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                // When user changed the Text
                MainActivity.this.adapter.getFilter().filter(cs);   
            }
             
            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
                // TODO Auto-generated method stub
                 
            }
             
            @Override
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub                          
            }
        });
 }
}


At the end , add the following property in your AndroidManifest.xml file

 

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.addsearchlistview.MainActivity"
            android:label="@string/app_name"
            android:windowSoftInputMode="stateHidden" > // To hide keyboard on loading activity
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

Output :

 Search Functionality in ListView Android  Search Functionality in ListView Android

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  1 comment:

  1. Anonymous19 April 2018 at 04:57

    Really Helpful article Sir. Thank you :)

    ReplyDelete

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