Recyclerview with Searchview Actionbar in Android Example

Recyclerview with searchview in actionbar to add searchview to you can search in item from recyclerview list.it is use to two methods are override to onQueryTextSubmit And onQueryTextChange

onQueryTextSubmit

In this method to use of you can input searchview and click to search item when you can searchable word.but it can first input type to search item and then click button after searchable item show.

onQueryTextChange

In this method to use of at a time to input word to search result show on at a time. ane refresh adapter to at a time and display search item in this method.

Add Depedancy AndroidManifest.xml File

    implementation 'com.android.support:recyclerview-v7:28.0.0-alpha3'

Add Menu Resource File Use to Searchview main_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">


    <item
        android:id="@+id/app_bar_search"
        android:icon="@drawable/ic_search_black_24dp"
        android:title="Search"
        app:showAsAction="always |collapseActionView"
        app:actionViewClass="android.support.v7.widget.SearchView" />
</menu>

Add Custom Layout File to Use Set Adapter in Recyclerview item_row.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="5dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <ImageView
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:id="@+id/img_view"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_gravity="center"
            android:textSize="20dp"
            android:id="@+id/text_view"/>

    </LinearLayout>

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#000000" />

</LinearLayout>

MainActivity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/recycler_view"/>

</LinearLayout>

Create Getter Setter Method Class to use this set and get data in list item. FruitsData.java

package com.example.bhaumik.recyclerviewdemo;

public class FruitsData {

    public String name;
    public int image;

    public FruitsData(String name, int image) {
        this.name = name;
        this.image = image;
    }

    public String getName() {
        return name;
    }

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

    public int getImage() {
        return image;
    }

    public void setImage(int image) {
        this.image = image;
    }
}

MainActivity.java

package com.example.bhaumik.recyclerviewdemo;

import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.SearchView;
import android.view.Menu;
import android.view.MenuItem;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    RecyclerView recyclerView;
    MyAdapter myAdapter;
    List<FruitsData> list = new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        list.add(new FruitsData("Apple",R.drawable.apple));
        list.add(new FruitsData("Banana",R.drawable.banana));
        list.add(new FruitsData("Grapes",R.drawable.grapes));
        list.add(new FruitsData("JackFruit",R.drawable.jack_fruit));
        list.add(new FruitsData("Lemon",R.drawable.lemon));
        list.add(new FruitsData("Mango",R.drawable.mango));
        list.add(new FruitsData("Orange",R.drawable.orange));
        list.add(new FruitsData("Papaya",R.drawable.papaya));
        list.add(new FruitsData("pear",R.drawable.pear));
        list.add(new FruitsData("Pineapple",R.drawable.pine_apple));

        recyclerView = findViewById(R.id.recycler_view);

        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        myAdapter = new MyAdapter(MainActivity.this,list);
        recyclerView.setAdapter(myAdapter);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.main_menu,menu);
        MenuItem menuItem = menu.findItem(R.id.app_bar_search);
        SearchView searchView = (SearchView) MenuItemCompat.getActionView(menuItem);
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {


                return true;
            }

            @Override
            public boolean onQueryTextChange(String newText) {

                if (myAdapter != null){
                    myAdapter.getFilter().filter(newText);
                }

                return true;
            }
        });
        return true;
    }

}

Create Adapter to Set Data in recyclerview MyAdapter.java

package com.example.bhaumik.recyclerviewdemo;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

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

    Context context;
    List<FruitsData> list = new ArrayList<>();
    List<FruitsData> list1 = new ArrayList<>();

    public MyAdapter(Context context, List<FruitsData> list) {
        this.context = context;
        this.list = list;
        this.list1 = list;
    }

    @NonNull
    @Override
    public MyHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

        View view = LayoutInflater.from(context).inflate(R.layout.item_list,viewGroup,false);

        return new MyHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull MyHolder myHolder, int i) {

        myHolder.imageView.setImageResource(list.get(i).getImage());
        myHolder.textView.setText(list.get(i).getName());

    }

    @Override
    public int getItemCount() {
        return list.size();
    }

    public static class MyHolder extends RecyclerView.ViewHolder{

        ImageView imageView;
        TextView textView;

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

            imageView = itemView.findViewById(R.id.img_view);
            textView = itemView.findViewById(R.id.text_view);

        }
    }

    @Override
    public Filter getFilter() {
        return new Filter() {
            @Override
            protected FilterResults performFiltering(CharSequence constraint) {

                String charString = constraint.toString();

                if (charString.isEmpty()){
                    list = list1;
                }else{

                    List<FruitsData> filterList = new ArrayList<>();

                    for (FruitsData data : list1){

                        if (data.getName().toLowerCase().contains(charString)){
                            filterList.add(data);
                        }
                    }

                    list = filterList;

                }

                FilterResults filterResults = new FilterResults();
                filterResults.values = list;

                return filterResults;
            }

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

                list = (List<FruitsData>) results.values;
                notifyDataSetChanged();
            }
        };

    }
}