Hi guys. In this tutorial we will look at how to search filter data in android. We use primarily a searchview widget. We render data in various adapterviews like listview and recyclerview. We look at various examples.

Languages used:

1. Kotlin
2. Java

Concept 1: Android SearchView Tutorial and Examples

Example 1: Android Simple ListView – Search/Filter

Android Simple ListView Search/Filter Tutorial and Example.

How to search or filter a simple ListView in android.

Google search engine is the most visited website in the whole world. This tells us something about us humans and our need to always search and filter through information.

The worldwide web is really vast, and we cannot be able to use it conveniently by just remembering website urls or going through portals to find the content we want.

Instead we simply search. Now today we are not developing another search engine. Instead we look at a simple example in android, how to search through a list using searchview. Call it search or filter, but we find the information we want by typing it in the searchview. SearchView is a widget that was added to android in API 11.

It provides s imple edittext where user can enter a query and submit it to the search provider. For us we simply search through a simple listview using searchview.

Common Questions this example explores

• Android SearchView example.
• How to search a simple listview in android.
• Android SearchView arrayadapter example.
• How to search/filter in android.

This example was written with the following tools:

• Windows 8.1
• Eclipse IDE
• Java Language
• Bluestacks Emulator

Lets have a look at the source code.

MainActivity.java

Our MainActivity Class

Purpose :

1. Reference our ListView and SearchView from xml
2. Bind our data to ListView using ArrayAdapter.
3. Handle our SearchView’s onQueryTextChangeListener.
4. Filter or Search dynamically

package com.tutorials.simplelistviewfilter;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;

public class MainActivity extends Activity {

  ListView lv;
  SearchView sv;

    String[] teams={"Man Utd","Man City","Chelsea","Arsenal","Liverpool","Totenham"};
  ArrayAdapter<String> adapter;

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

        lv=(ListView) findViewById(R.id.listView1);
        sv=(SearchView) findViewById(R.id.searchView1);

        adapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,teams);
        lv.setAdapter(adapter);

        sv.setOnQueryTextListener(new OnQueryTextListener() {

      @Override
      public boolean onQueryTextSubmit(String text) {
        // TODO Auto-generated method stub
        return false;
      }

      @Override
      public boolean onQueryTextChange(String text) {

               adapter.getFilter().filter(text);

        return false;
      }
    });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

ActivityMain.xml

Our ActivityMain layout

Purpose

1. Basically display whatever widgets we want to use,in this case ListView and SearchView.

<RelativeLayout

    android_layout_width="match_parent"
    android_layout_height="match_parent"
    android_paddingBottom="@dimen/activity_vertical_margin"
    android_paddingLeft="@dimen/activity_horizontal_margin"
    android_paddingRight="@dimen/activity_horizontal_margin"
    android_paddingTop="@dimen/activity_vertical_margin"
    tools_context=".MainActivity" >

    <SearchView
        android_id="@+id/searchView1"
        android_layout_width="match_parent"
        android_layout_height="wrap_content"
        android_layout_alignParentLeft="true"
        android_layout_alignParentTop="true"
        android_queryHint="Search.."
         >

    </SearchView>

    <ListView
        android_id="@+id/listView1"
        android_layout_width="match_parent"
        android_layout_height="wrap_content"
        android_layout_alignParentLeft="true"
        android_layout_below="@+id/searchView1"
        android_layout_marginTop="22dp" >
    </ListView>

</RelativeLayout>

Video/Demo

YouTube Video

How To Run

1. This project was created by Eclipse.
2. Therefore just copy the code and use in your project in android studio, it’s still android anyway and expandableListview is the same regardless of the IDE. So copy paste the code to your android studio project.

Example 2: Android Custom RecyclerView with Images and Text Search/Filter

Android Custom RecyclerView with Images and Text Search/Filter.

This is an android tutorial to explore how to search or filter a recyclerview with images and text.

The RecyclerView will comprise CardViews so it is the CardViews that we will be filtering.

We use SearchView to input our search terms thus allowing us search in realtime.

Let’s go.

1. Create Basic Activity Project

1. First create a new project in android studio. Go to File –> New Project.
2. Type the application name and choose the company name.
   
3. Choose minimum SDK.
   
4. Choose Basic activity.
   
5. Click Finish.
   

Basic activity will have a toolbar and floating action button already added in the layout

Normally two layouts get generated with this option:

2. Build.Gradle(App level)

We are not sung any special library.

3. Create User Interface

Here are our layouts for this project:

(a). activity_main.xml

• This layout gets inflated to MainActivity user interface.
• It includes the content_main.xml.

Here are some of the widgets, views and viewgroups that get employed"

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout

    android_layout_width="match_parent"
    android_layout_height="match_parent"
    android_fitsSystemWindows="true"
    tools_context="com.tutorials.hp.customrecyclerfiltering.MainActivity">

    <android.support.design.widget.AppBarLayout
        android_layout_width="match_parent"
        android_layout_height="wrap_content"
        android_theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android_id="@+id/toolbar"
            android_layout_width="match_parent"
            android_layout_height="?attr/actionBarSize"
            android_background="?attr/colorPrimary"
            app_popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

    <android.support.design.widget.FloatingActionButton
        android_id="@+id/fab"
        android_layout_width="wrap_content"
        android_layout_height="wrap_content"
        android_layout_gravity="bottom|end"
        android_layout_margin="@dimen/fab_margin"
        android_src="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

(b). content_main.xml

This layout gets included in your activity_main.xml.
We add our SearchView on to of our RecyclerView here.

The SearchView will be used to Filter the RecyclerView.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout

    android_layout_width="match_parent"
    android_layout_height="match_parent"
    android_paddingBottom="@dimen/activity_vertical_margin"
    android_paddingLeft="@dimen/activity_horizontal_margin"
    android_paddingRight="@dimen/activity_horizontal_margin"
    android_paddingTop="@dimen/activity_vertical_margin"
    app_layout_behavior="@string/appbar_scrolling_view_behavior"
    tools_context="com.tutorials.hp.customrecyclerfiltering.MainActivity"
    tools_showIn="@layout/activity_main">

    <LinearLayout
        android_layout_width="match_parent"
        android_orientation="vertical"
        android_layout_height="match_parent">

        <android.support.v7.widget.SearchView
            android_id="@+id/mSearch"
            android_layout_width="match_parent"
            android_layout_height="50dp"
            app_defaultQueryHint="Search.."
            ></android.support.v7.widget.SearchView>

        <android.support.v7.widget.RecyclerView
            android_id="@+id/myRecycler"
            android_layout_width="wrap_content"
            android_layout_below="@+id/mSearch"
            android_layout_height="wrap_content"
            class="android.support.v7.widget.RecyclerView" />

    </LinearLayout>
</RelativeLayout>

(c). model.xml

This is a CardView with various widgets. This layout will represent a single item in our RecyclerView:

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
    android_orientation="horizontal" android_layout_width="match_parent"

    android_layout_margin="5dp"
    card_view_cardCornerRadius="10dp"
    card_view_cardElevation="5dp"

    android_layout_height="match_parent">

    <RelativeLayout
        android_layout_width="match_parent"
        android_layout_height="match_parent">

        <ImageView
            android_layout_width="wrap_content"
            android_layout_height="wrap_content"
            android_id="@+id/playerImage"
            android_padding="10dp"
            android_src="@drawable/herera" />

        <TextView
            android_layout_width="wrap_content"
            android_layout_height="wrap_content"
            android_textAppearance="?android:attr/textAppearanceLarge"
            android_text="Name"
            android_id="@+id/nameTxt"
            android_padding="10dp"
            android_layout_alignParentTop="true"
            android_layout_toRightOf="@+id/playerImage" />

        <TextView
            android_layout_width="wrap_content"
            android_layout_height="wrap_content"
            android_textAppearance="?android:attr/textAppearanceMedium"
            android_text="Position"
            android_id="@+id/posTxt"
            android_padding="10dp"
            android_layout_alignBottom="@+id/playerImage"
            android_layout_alignParentRight="true" />

    </RelativeLayout>
</android.support.v7.widget.CardView>

4. Player.java

This is our data object. Our POJO class.

This class represents a single Player.

public class Player {

    private String name;
    private String pos;
    private int img;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPos() {
        return pos;
    }

    public void setPos(String pos) {
        this.pos = pos;
    }

    public int getImg() {
        return img;
    }

    public void setImg(int img) {
        this.img = img;
    }
}

5. ItemClickListener.java

This an interface to define for us our event handler signature.

public interface ItemClickListener {

    void onItemClick(View v,int pos);
}

6. MyHolder.java

This is a ViewHolder class.

It will hold our inflated model.xml as a view object for recycling. This View will be used by the MyAdapter class.

public class MyHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

    //OUR VIEWS
    ImageView img;
    TextView nameTxt,posTxt;

    ItemClickListener itemClickListener;

    public MyHolder(View itemView) {
        super(itemView);

        this.img= (ImageView) itemView.findViewById(R.id.playerImage);
        this.nameTxt= (TextView) itemView.findViewById(R.id.nameTxt);
        this.posTxt= (TextView) itemView.findViewById(R.id.posTxt);

        itemView.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        this.itemClickListener.onItemClick(v,getLayoutPosition());

    }

    public void setItemClickListener(ItemClickListener ic)
    {
        this.itemClickListener=ic;
    }
}

7. MyAdapter.java

This is our RecyclerView.Adapter class.

This class will first inflate our model.xml and bind data to the resultant view.

This class will also implement the android.widget.Filterable interface.

public class MyAdapter extends RecyclerView.Adapter<MyHolder> implements Filterable{

    Context c;
    ArrayList<Player> players,filterList;
    CustomFilter filter;

    public MyAdapter(Context ctx,ArrayList<Player> players)
    {
        this.c=ctx;
        this.players=players;
        this.filterList=players;
    }

    @Override
    public MyHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        //CONVERT XML TO VIEW ONBJ
        View v= LayoutInflater.from(parent.getContext()).inflate(R.layout.model,null);

        //HOLDER
        MyHolder holder=new MyHolder(v);

        return holder;
    }

    //DATA BOUND TO VIEWS
    @Override
    public void onBindViewHolder(MyHolder holder, int position) {

        //BIND DATA
        holder.posTxt.setText(players.get(position).getPos());
        holder.nameTxt.setText(players.get(position).getName());
        holder.img.setImageResource(players.get(position).getImg());

        //IMPLEMENT CLICK LISTENET
        holder.setItemClickListener(new ItemClickListener() {
            @Override
            public void onItemClick(View v, int pos) {
                Snackbar.make(v,players.get(pos).getName(),Snackbar.LENGTH_SHORT).show();
            }
        });

    }

    //GET TOTAL NUM OF PLAYERS
    @Override
    public int getItemCount() {
        return players.size();
    }

    //RETURN FILTER OBJ
    @Override
    public Filter getFilter() {
        if(filter==null)
        {
            filter=new CustomFilter(filterList,this);
        }

        return filter;
    }
}

8. CustomFilter.java

This class will derive from android.widget.Filter class.

This is the class that will search our data.

package com.tutorials.hp.customrecyclerfiltering;

import android.widget.Filter;

import java.util.ArrayList;

public class CustomFilter extends Filter{

    MyAdapter adapter;
    ArrayList<Player> filterList;

    public CustomFilter(ArrayList<Player> filterList,MyAdapter adapter)
    {
        this.adapter=adapter;
        this.filterList=filterList;

    }

    //FILTERING OCURS
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        FilterResults results=new FilterResults();

        //CHECK CONSTRAINT VALIDITY
        if(constraint != null && constraint.length() > 0)
        {
            //CHANGE TO UPPER
            constraint=constraint.toString().toUpperCase();
            //STORE OUR FILTERED PLAYERS
            ArrayList<Player> filteredPlayers=new ArrayList<>();

            for (int i=0;i<filterList.size();i++)
            {
                //CHECK
                if(filterList.get(i).getName().toUpperCase().contains(constraint))
                {
                    //ADD PLAYER TO FILTERED PLAYERS
                    filteredPlayers.add(filterList.get(i));
                }
            }

            results.count=filteredPlayers.size();
            results.values=filteredPlayers;
        }else
        {
            results.count=filterList.size();
            results.values=filterList;

        }

        return results;
    }

    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {

       adapter.players= (ArrayList<Player>) results.values;

        //REFRESH
        adapter.notifyDataSetChanged();
    }
}

9. MainActivity.java

This is our main activity. It derives from android.app.Activity.

This activity will use the inflated activity_main.xml as the UI view.

public class MainActivity extends AppCompatActivity {

   SearchView sv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        sv= (SearchView) findViewById(R.id.mSearch);
        RecyclerView rv= (RecyclerView) findViewById(R.id.myRecycler);

        //SET ITS PROPETRIES
        rv.setLayoutManager(new LinearLayoutManager(this));
        rv.setItemAnimator(new DefaultItemAnimator());

        //ADAPTER
        final MyAdapter adapter=new MyAdapter(this,getPlayers());
        rv.setAdapter(adapter);

        //SEARCH
        sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return false;
            }

            @Override
            public boolean onQueryTextChange(String query) {
                //FILTER AS YOU TYPE
                adapter.getFilter().filter(query);
                return false;
            }
        });

    }

    //ADD PLAYERS TO ARRAYLIST
    private ArrayList<Player> getPlayers()
    {
        ArrayList<Player> players=new ArrayList<>();
        Player p=new Player();
        p.setName("Ander Herera");
        p.setPos("Midfielder");
        p.setImg(R.drawable.herera);
        players.add(p);

        p=new Player();
        p.setName("David De Geaa");
        p.setPos("Goalkeeper");
        p.setImg(R.drawable.degea);
        players.add(p);

        p=new Player();
        p.setName("Michael Carrick");
        p.setPos("Midfielder");
        p.setImg(R.drawable.carrick);
        players.add(p);

        p=new Player();
        p.setName("Juan Mata");
        p.setPos("Playmaker");
        p.setImg(R.drawable.mata);
        players.add(p);

        p=new Player();
        p.setName("Diego Costa");
        p.setPos("Striker");
        p.setImg(R.drawable.costa);
        players.add(p);

        p=new Player();
        p.setName("Oscar");
        p.setPos("Playmaker");
        p.setImg(R.drawable.oscar);
        players.add(p);

        return players;
    }
}

Download

ToolBar SearchBar

There are two ways in which you can achieve a toolbar search. First you can simply place a searchview in your toolbar layout. Then reference the searchview and use it as normal.

Second you can use a variety of searchview libraries like the Material SearchBar Library. We will see this in the next example.

Example 3: Kotlin Android – Search/Filter ListView with SearchView

This is a Kotlin android SearchView and ListView example. We see how to search/filter a simple ListView.

Users can simply type the search word or term and we search filter a listview.

We are using Kotlin as our programming language. We hold our data in a simple array.

But first let’s introduce some terms.

What is a MaterialSearchBar?

MaterialSearchBar is a beautiful and easy to use library will help to add Lollipop Material Design SearchView in your project.

Full Example

Let’s look at Code

How the App Works.

First we will have a ListView and MaterialSearchBar in our layouts. Then we will reference them in our java code using the findViewById function.

    val lv = findViewById(R.id.mListView) as ListView
    val searchBar = findViewById(R.id.searchBar) as MaterialSearchBar

Normally findViewById returns a view object which we can then cast to the specific widget using the as keyword.

Then we will create a simple array using the arrayOf() function. This will act as our data store or source.

        var galaxies = arrayOf("Sombrero", "Cartwheel", ....)

Then will prepare an adapter. In this case we use an arrayadapter as we are working with a simple array as the data source we will be searching.

        val adapter = ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, galaxies)
        lv.setAdapter(adapter)

We will search our listview by listening to TextChange events on our searchbar. First we addTextChangeListener, then handle our events using three callback methods:

1. beforeTextChanged
2. onTextChanged – This is where we filter our adapter.
3. afterTextChanged

            searchBar.addTextChangeListener(object : TextWatcher {
            override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {

            }

            override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
                //SEARCH FILTER
                adapter.getFilter().filter(charSequence)
            }

            override fun afterTextChanged(editable: Editable) {

            }
        })

We will finally listen to listview click events after searching:

           lv.setOnItemClickListener(object : AdapterView.OnItemClickListener {
            override fun onItemClick(adapterView: AdapterView<*>, view: View, i: Int, l: Long) {
                Toast.makeText([email protected], adapter.getItem(i)!!.toString(), Toast.LENGTH_SHORT).show()
            }
        })

Let’s start coding.

1. Gradle Scripts

(a). build.gradle(app)

We will add MaterialSearchBar(com.github.mancj:MaterialSearchBar:0.7.1) as an implementation statement in our app level build.gradle.

Take note we are using kotlin so we will apply the kotlin-android plugin as well as the com.android.application.

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.devosha.kotlinlistviewsearchbar"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    testImplementation 'junit:junit:4.12'
    implementation 'com.android.support:design:28.0.0-alpha3'
    implementation 'com.github.mancj:MaterialSearchBar:0.7.1'
}

2. Layouts

(a). activity_main.xml

Let’s add a MaterialSearchBar xml element and a ListView.

We are wrapping them in a LinearLayout with a vertical orientation.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout

    android_layout_width="match_parent"
    android_layout_height="match_parent"
    android_orientation="vertical"
    tools_context=".MainActivity">

    <com.mancj.materialsearchbar.MaterialSearchBar
        app_mt_speechMode="true"
        app_mt_hint="Custom hint"
        app_theme="@style/AppTheme.PopupOverlay"
        app_mt_maxSuggestionsCount="5"
        android_layout_width="match_parent"
        android_layout_height="wrap_content"
        android_id="@+id/searchBar" />
    <ListView
        android_id="@+id/mListView"
        android_layout_width="match_parent"
        android_layout_height="match_parent">
    </ListView>

</LinearLayout>

3. Kotlin Code

We write our code in Kotlin programming language.

(a). MainActivity.kt

Let’s look at our main activity.

package com.devosha.kotlinlistviewsearchbar

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.support.v7.widget.Toolbar
import android.widget.Toast
import android.widget.AdapterView
import android.text.Editable
import android.text.TextWatcher
import android.view.View
import android.widget.ArrayAdapter
import android.widget.ListView
import com.mancj.materialsearchbar.MaterialSearchBar

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        //REFERENCE MATERIALSEARCHBAR AND LISTVIEW
        val lv = findViewById(R.id.mListView) as ListView
        val searchBar = findViewById(R.id.searchBar) as MaterialSearchBar
        searchBar.setHint("Search..")
        searchBar.setSpeechMode(true)

        var galaxies = arrayOf("Sombrero", "Cartwheel", "Pinwheel", "StarBust", "Whirlpool", "Ring Nebular", "Own Nebular", "Centaurus A", "Virgo Stellar Stream", "Canis Majos Overdensity", "Mayall's Object", "Leo", "Milky Way", "IC 1011", "Messier 81", "Andromeda", "Messier 87")

        //ADAPTER
        val adapter = ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, galaxies)
        lv.setAdapter(adapter)

        //SEARCHBAR TEXT CHANGE LISTENER
        searchBar.addTextChangeListener(object : TextWatcher {
            override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {

            }

            override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
                //SEARCH FILTER
                adapter.getFilter().filter(charSequence)
            }

            override fun afterTextChanged(editable: Editable) {

            }
        })

        //LISTVIEW ITEM CLICKED
        lv.setOnItemClickListener(object : AdapterView.OnItemClickListener {
            override fun onItemClick(adapterView: AdapterView<*>, view: View, i: Int, l: Long) {
                Toast.makeText([email protected], adapter.getItem(i)!!.toString(), Toast.LENGTH_SHORT).show()
            }
        })

        //end

    }
}

Here are our results:

Search History

Let’s see how to show search history using a beautiful material searchview library.

Android Material SearchView and History

Android Material SearchView and History Tutorial and Example.

• Here the purpose is to programmatically open search,close and show search suggestions while searching.
• The search occurs in a nice fragment.
• We use a Material SearchView library.

Build.gradle

First we add the Material SearchView library.

apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion "24.0.1"

    defaultConfig {
        applicationId "com.tutorials.hp.materialsearchgridview"
        minSdkVersion 15
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:24.1.1'
    compile 'com.android.support:design:24.1.1'
    compile 'br.com.mauker.materialsearchview:materialsearchview:1.1.0'
}

Second we create a package called br.com.mauker as below and the following class :

package br.com.mauker;

public class MsvAuthority {
    public static final String CONTENT_AUTHORITY = "br.com.mauker.materialsearchview.searchhistorydatabase";
}

MainActivity.java

Here’s our MainActivity class :

package com.tutorials.hp.materialsearchgridview;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;

import br.com.mauker.materialsearchview.MaterialSearchView;

public class MainActivity extends AppCompatActivity {

   MaterialSearchView msv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

        msv= (MaterialSearchView) findViewById(R.id.msv);
        msv.addSuggestions(new String[]{"Casini","Andromeda","Europa","Voyager","Spitzer","Hubble"});

        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                msv.openSearch();

            }
        });
    }

    @Override
    public void onBackPressed() {
       if(msv.isOpen())
       {
           msv.closeSearch();
       }else
       {
           super.onBackPressed();
       }
    }
}

activity_main.xml

Then in our layout we add Material searchView as below :

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout

    android_layout_width="match_parent"
    android_layout_height="match_parent"
    android_paddingBottom="@dimen/activity_vertical_margin"
    android_paddingLeft="@dimen/activity_horizontal_margin"
    android_paddingRight="@dimen/activity_horizontal_margin"
    android_paddingTop="@dimen/activity_vertical_margin"
    app_layout_behavior="@string/appbar_scrolling_view_behavior"
    tools_context="com.tutorials.hp.materialsearchgridview.MainActivity"
    tools_showIn="@layout/activity_main">

    <br.com.mauker.materialsearchview.MaterialSearchView
        android_id="@+id/msv"
        android_layout_width="match_parent"
        android_layout_height="match_parent"/>
</RelativeLayout>

For more details and demo,check the video tutorial below : https://www.youtube.com/watch?v=fspKA0xWHxc

Concept 2: Android Material SearchBar Tutorial and Examples