Android SearchView

Android SearchView provides user interface to search query submitted over search provider. SearchView widget can be implemented over ToolBar/ActionBar or inside a layout.

SearchView is by default collapsible and set to be iconified using setIconifiedByDefault(true) method of SearchView class. For making search field visible, SearchView uses setIconifiedByDefault(false) method.

Methods of SearchView

1. public boolean onQueryTextSubmit(String query): It searches the query on the submission of content over SearchView editor. It is case dependent.
2. public boolean onQueryTextChange(String newText): It searches the query at the time of text change over SearchView editor.

Example of SearchView

Let's see the example of SearchView over layout, searching data in a ListView.

activity_main.xml

Create an activity_main.xml file in layout folder containing ScrollView and ListView.

File: activity_main.xml

1. <?xml version="1.0" encoding="utf-8"?>  
2. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     xmlns:tools="http://schemas.android.com/tools"  
4.     android:layout_width="match_parent"  
5.     android:layout_height="match_parent"  
6.     android:paddingBottom="@dimen/activity_vertical_margin"  
7.     android:paddingLeft="@dimen/activity_horizontal_margin"  
8.     android:paddingRight="@dimen/activity_horizontal_margin"  
9.     android:paddingTop="@dimen/activity_vertical_margin"  
10.     tools:context="com.example.test.searchview.MainActivity">  
11.   
12.     <ListView  
13.         android:layout_width="match_parent"  
14.         android:layout_height="match_parent"  
15.         android:id="@+id/lv1"  
16.         android:divider="#ad5"  
17.         android:dividerHeight="2dp"  
18.         android:layout_below="@+id/searchView"/>  
19.   
20.     <SearchView  
21.         android:id="@+id/searchView"  
22.         android:layout_width="wrap_content"  
23.         android:layout_height="wrap_content"  
24.         android:queryHint="Search Here"  
25.         android:iconifiedByDefault="false"  
26.         android:layout_alignParentTop="true"  
27.    />  
28.   
29. </RelativeLayout>  

Activity class

File: MainActivity.java

1. package com.example.test.searchview;  
2.   
3. import android.support.v7.app.AppCompatActivity;  
4. import android.os.Bundle;  
5. import android.widget.ArrayAdapter;  
6. import android.widget.Filter;  
7. import android.widget.ListView;  
8. import android.widget.SearchView;  
9. import android.widget.Toast;  
10.   
11. import java.util.ArrayList;  
12.   
13. public class MainActivity extends AppCompatActivity {  
14.     SearchView searchView;  
15.     ListView listView;  
16.     ArrayList<String> list;  
17.     ArrayAdapter<String > adapter;  
18.     @Override  
19.     protected void onCreate(Bundle savedInstanceState) {  
20.         super.onCreate(savedInstanceState);  
21.         setContentView(R.layout.activity_main);  
22.   
23.         searchView = (SearchView) findViewById(R.id.searchView);  
24.         listView = (ListView) findViewById(R.id.lv1);  
25.   
26.         list = new ArrayList<>();  
27.         list.add("Apple");  
28.         list.add("Banana");  
29.         list.add("Pineapple");  
30.         list.add("Orange");  
31.         list.add("Lychee");  
32.         list.add("Gavava");  
33.         list.add("Peech");  
34.         list.add("Melon");  
35.         list.add("Watermelon");  
36.         list.add("Papaya");  
37.   
38.         adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,list);  
39.         listView.setAdapter(adapter);  
40.   
41.         searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {  
42.             @Override  
43.             public boolean onQueryTextSubmit(String query) {  
44.   
45.                 if(list.contains(query)){  
46.                     adapter.getFilter().filter(query);  
47.                 }else{  
48.                     Toast.makeText(MainActivity.this, "No Match found",Toast.LENGTH_LONG).show();  
49.                 }  
50.                 return false;  
51.             }  
52.   
53.             @Override  
54.             public boolean onQueryTextChange(String newText) {  
55.             //    adapter.getFilter().filter(newText);  
56.                 return false;  
57.             }  
58.         });  
59.     }  
60. }  

Output