How to select multiple item in fragment using RecyclerView and listView in android

Hello Guys, today I will teach you how to select multiple item in andriod .Today lot of app implement this method because when you want select some item to download or share so you can use in method . Friends, today the need for multiple item selection is becoming more and today we implement it very easily in the activity.

What is the multiple item selection in fragment ?

Multisection is a method in which the user clicks on any item from the list for a long time, then add this selected item to a separate list, only then you can remove the previously selected data, while the user again on the same item Clicks.we will use 2 simple step to use this method in our app.

Create New Project

Start by creating a new Android project in Android studio. Choose "File", "New", select "New Project" and then click "Next". In the New Android Application window, enter your chosen Application, Project, and Package names and then choose "Next" and last finish. After creating the project, you will see two files, first activity_main and second MainActivity.java, then you have to paste the code given below activity_main and MainActivity.java.

After creating the project the first thing you can do is to see that in Gradle Scripts there is a library implementation 'com.google.android.material: material: 1.3.0', implementation 'androidx.recyclerview:recyclerview:1.2.0' implementation'androidx.cardview:cardview:1.0.0' implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0 for design in build.gradle if not Add the dependency below to your build.gradle and hit the Sync Now button .

build.gradle

   implementation 'com.google.android.material:material:1.3.0'  
   implementation 'androidx.recyclerview:recyclerview:1.2.0'  
   implementation 'androidx.cardview:cardview:1.0.0'  
   implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'

activity_main.xml

 <?xml version="1.0" encoding="utf-8"?>  
 <androidx.coordinatorlayout.widget.CoordinatorLayout 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:id="@+id/coordinat_layout"  
   android:layout_width="match_parent"  
   android:layout_height="match_parent"  
   tools:context=".MainActivity">  
   <com.google.android.material.appbar.AppBarLayout  
     android:layout_width="match_parent"  
     android:layout_height="wrap_content"  
     android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">  
     <androidx.appcompat.widget.Toolbar  
       android:id="@+id/toolbar"  
       android:layout_width="match_parent"  
       android:layout_height="wrap_content"  
       app:popupTheme="@style/ThemeOverlay.AppCompat.ActionBar"/>  
     <com.google.android.material.tabs.TabLayout  
       android:id="@+id/tab_layout"  
       android:layout_width="match_parent"  
       android:layout_height="wrap_content"  
       app:tabSelectedTextColor="@color/red"  
       app:tabTextColor="@color/white"  
       app:tabIndicatorHeight="2dp"  
       android:background="@color/purple_500"  
       app:tabIndicatorColor="#05F60F" />  
   </com.google.android.material.appbar.AppBarLayout>  
   <androidx.viewpager.widget.ViewPager  
     android:id="@+id/viewpager"  
     android:layout_width="match_parent"  
     android:layout_height="match_parent"  
     app:layout_behavior="@string/appbar_scrolling_view_behavior" />  
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

Here you see that we have used an AppBarLayout, inside which the toolbar and tablayout have been used, and outside of AppBarLayout, we have used a ViewPager.

Now we are going to implement this activity_main in MainActivity.java

MainActivity.java

 import androidx.appcompat.app.AppCompatActivity;  
 import androidx.appcompat.widget.Toolbar;  
 import androidx.fragment.app.Fragment;  
 import androidx.viewpager.widget.ViewPager;  
 import android.os.Bundle;  
 import com.google.android.material.tabs.TabLayout;  
 public class MainActivity extends AppCompatActivity {  
   private static ViewPagerAdapter adapter;  
   TabLayout tabLayout;  
   ViewPager viewPager;  
   @Override  
   protected void onCreate(Bundle savedInstanceState) {  
     super.onCreate(savedInstanceState);  
     setContentView(R.layout.activity_main);  
     Toolbar toolbar = findViewById(R.id.toolbar);  
     setSupportActionBar(toolbar);  
     viewPager = findViewById(R.id.viewpager);  
     setupViewPager(viewPager);//Set up View Pager  
     tabLayout = findViewById(R.id.tab_layout);  
     tabLayout.setupWithViewPager(viewPager);//setting tab over viewpager  
   }  
   //Setting View Pager  
   private void setupViewPager(ViewPager viewPager) {  
       ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());  
     adapter.addFrag(new ListFragment(), "ListView");  
     adapter.addFrag(new RecycFragment(), "RecyclerView");  
     // tabLayout.setupWithViewPager(viewPager);  
     viewPager.setAdapter(adapter);  
   }  
   //adding fragments and title method  
   //Return current fragment on basis of Position  
   public Fragment getFragment(int pos) {  
     return adapter.getItem(pos);  
   }

Here we have removed the default toolbar and replaced it with a new custom toolbar and then a method setupViewPager that is taking a parameter ViewPager to be created outside of onCreate. In this method, first we will get a ViewPagerAdapter class which we can create app. Clicking right above the package name of the package or right clicking on the error and clicking right will sugget us to create this class.

After creating the class, we will see two errors in the same method and the first ListFragment () and RecycFragment () will be done in the same way as the class created above whose code is given below.

ViewPagerAdapter.java

 import androidx.annotation.NonNull;  
 import androidx.fragment.app.Fragment;  
 import androidx.fragment.app.FragmentManager;  
 import androidx.fragment.app.FragmentPagerAdapter;  
 import java.util.ArrayList;  
 import java.util.List;  
 public class ViewPagerAdapter extends FragmentPagerAdapter {  
   private final List<Fragment> mFragmentList = new ArrayList<>();//fragment array list  
   private final List<String> mFragmentTitleList = new ArrayList<>();//title array list  
   public ViewPagerAdapter(FragmentManager manager) {  
     super(manager);  
   }  
   @Override  
   public Fragment getItem(int position) {  
     return mFragmentList.get(position);  
   }  
   @Override  
   public int getCount() {  
     return mFragmentList.size();  
   }  
   //adding fragments and title method  
   public void addFrag(Fragment fragment, String title) {  
     mFragmentList.add(fragment);  
     mFragmentTitleList.add(title);  
   }  
   @Override  
   public CharSequence getPageTitle(int position) {  
     return mFragmentTitleList.get(position);  
   }  
 }

ListFragment.java

 import android.os.Bundle;  
 import android.util.SparseBooleanArray;  
 import android.view.LayoutInflater;  
 import android.view.View;  
 import android.view.ViewGroup;  
 import android.widget.AdapterView;  
 import android.widget.ListView;  
 import android.widget.Toast;  
 import androidx.annotation.Nullable;  
 import androidx.appcompat.app.AppCompatActivity;  
 import androidx.appcompat.view.ActionMode;  
 import androidx.fragment.app.Fragment;  
 import java.util.ArrayList;  
 public class ListFragment extends Fragment {  
   private static View view;  
   private static ListAdapter adapter;  
   private static ListView listView;  
   //Action Mode for toolbar  
   private ActionMode mActionMode;  
   private static ArrayList<Model> item_models;  
   public ListFragment() {  
   }  
   @Nullable  
   @Override  
   public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {  
     view = inflater.inflate(R.layout.list_fragment, container, false);  
     populateListView();  
     implementListViewClickListeners();  
     return view;  
   }  
   //Populate ListView with dummy data  
   private void populateListView() {  
     listView = (ListView) view.findViewById(R.id.list_view);  
     item_models = new ArrayList<>();  
     for (int i = 1; i <= 40; i++)  
       item_models.add(new Model("Title " + i, "Sub Title " + i));  
     adapter = new ListAdapter(getActivity(), item_models);  
     listView.setAdapter(adapter);  
     adapter.notifyDataSetChanged();  
   }  
   //Implement item click and long click over listview  
   private void implementListViewClickListeners() {  
     listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {  
       @Override  
       public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  
         //If ActionMode not null select item  
         if (mActionMode != null)  
           onListItemSelect(position);  
       }  
     });  
     listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {  
       @Override  
       public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {  
         //Select item on long click  
         onListItemSelect(position);  
         return true;  
       }  
     });  
   }  
   //List item select method  
   private void onListItemSelect(int position) {  
     adapter.toggleSelection(position);//Toggle the selection  
     boolean hasCheckedItems = adapter.getSelectedCount() > 0;//Check if any items are already selected or not  
     if (hasCheckedItems && mActionMode == null)  
       // there are some selected items, start the actionMode  
       mActionMode = ((AppCompatActivity) getActivity()).startSupportActionMode(new Toolbar_ActionMode_Callback(getActivity(), null, adapter, item_models, true));  
     else if (!hasCheckedItems && mActionMode != null)  
       // there no selected items, finish the actionMode  
       mActionMode.finish();  
     if (mActionMode != null)  
       //set action mode title on item selection  
       mActionMode.setTitle(String.valueOf(adapter  
           .getSelectedCount()) + " selected");  
   }  
   //Set action mode null after use  
   public void setNullToActionMode() {  
     if (mActionMode != null)  
       mActionMode = null;  
   }  
   //Delete selected rows  
   public void deleteRows() {  
     SparseBooleanArray selected = adapter  
         .getSelectedIds();//Get selected ids  
     //Loop all selected ids  
     for (int i = (selected.size() - 1); i >= 0; i--) {  
       if (selected.valueAt(i)) {  
         //If current id is selected remove the item via key  
         item_models.remove(selected.keyAt(i));  
         adapter.notifyDataSetChanged();//notify adapter  
       }  
     }  
     Toast.makeText(getActivity(), selected.size() + " item deleted.", Toast.LENGTH_SHORT).show();//Show Toast  
     mActionMode.finish();//Finish action mode after use  
   }  
 }

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list_fragment.xml

 <?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:background="#DF7F7F"  
   android:gravity="center"  
   android:orientation="vertical">  
   <!-- List View -->  
   <ListView  
     android:id="@+id/list_view"  
     android:layout_width="match_parent"  
     android:layout_height="match_parent"  
     android:scrollbars="none" />  
 </LinearLayout>

ListAdpter.java

 import android.content.Context;  
 import android.graphics.Color;  
 import android.util.SparseBooleanArray;  
 import android.view.LayoutInflater;  
 import android.view.View;  
 import android.view.ViewGroup;  
 import android.widget.BaseAdapter;  
 import android.widget.TextView;  
 import java.util.ArrayList;  
 public class ListAdapter extends BaseAdapter {  
   private Context context;  
   private ArrayList<Model> item_modelArrayList;  
   private SparseBooleanArray mSelectedItemsIds;  
   public ListAdapter(Context context, ArrayList<Model> item_modelArrayList) {  
     this.context = context;  
     this.item_modelArrayList = item_modelArrayList;  
     mSelectedItemsIds = new SparseBooleanArray();  
   }  
   @Override  
   public int getCount() {  
     return item_modelArrayList.size();  
   }  
   @Override  
   public Model getItem(int position) {  
     return item_modelArrayList.get(position);  
   }  
   @Override  
   public long getItemId(int position) {  
     return position;  
   }  
   @Override  
   public View getView(int position, View convertView, ViewGroup parent) {  
     LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);  
     ViewHolder holder;  
     if (convertView == null) {  
       convertView = inflater.inflate(R.layout.item, parent, false);  
       holder = new ViewHolder();  
       holder.title = (TextView) convertView.findViewById(R.id.title);  
       holder.sub_title = (TextView) convertView.findViewById(R.id.sub_title);  
       convertView.setTag(holder);  
     } else  
       holder = (ViewHolder) convertView.getTag();  
     holder.title.setText(item_modelArrayList.get(position).getTitle());  
     holder.sub_title.setText(item_modelArrayList.get(position).getSubTitle());  
     /** Change background color of the selected items in list view **/  
     convertView  
         .setBackgroundColor(mSelectedItemsIds.get(position) ? 0x9934B5E4  
             : Color.TRANSPARENT);  
     return convertView;  
   }  
   private class ViewHolder {  
     TextView title, sub_title;  
   }  
   /***  
    * Methods required for do selections, remove selections, etc.  
    */  
   //Toggle selection methods  
   public void toggleSelection(int position) {  
     selectView(position, !mSelectedItemsIds.get(position));  
   }  
   //Remove selected selections  
   public void removeSelection() {  
     mSelectedItemsIds = new SparseBooleanArray();  
     notifyDataSetChanged();  
   }  
   //Put or delete selected position into SparseBooleanArray  
   public void selectView(int position, boolean value) {  
     if (value)  
       mSelectedItemsIds.put(position, value);  
     else  
       mSelectedItemsIds.delete(position);  
     notifyDataSetChanged();  
   }  
   //Get total selected count  
   public int getSelectedCount() {  
     return mSelectedItemsIds.size();  
   }  
   //Return all selected ids  
   public SparseBooleanArray getSelectedIds() {  
     return mSelectedItemsIds;  
   }  
 }

item.xml

 <?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="wrap_content"  
   android:background="#80000000"  
   android:orientation="vertical"  
   android:layout_marginTop="1dp"  
   android:padding="10dp">  
   <TextView  
     android:text="Title"  
     android:id="@+id/title"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:textColor="@android:color/black"  
     android:textSize="16sp" />  
   <TextView  
     android:text="Sub Title"  
     android:id="@+id/sub_title"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:textColor="@android:color/darker_gray"  
     android:textSize="13sp" />  
 </LinearLayout>

Model.java

 import java.io.Serializable;  
 public class Model implements Serializable {  
   /* Model class for List and Recycler Items */  
   private String title, subTitle;  
   public Model(String title, String subTitle) {  
     this.title = title;  
     this.subTitle = subTitle;  
   }  
   public String getTitle() {  
     return title;  
   }  
   public String getSubTitle() {  
     return subTitle;  
   }  
 }

RecycFragment.java

 import android.os.Bundle;  
 import android.util.SparseBooleanArray;  
 import android.view.LayoutInflater;  
 import android.view.View;  
 import android.view.ViewGroup;  
 import android.widget.Toast;  
 import androidx.annotation.Nullable;  
 import androidx.appcompat.app.AppCompatActivity;  
 import androidx.appcompat.view.ActionMode;  
 import androidx.fragment.app.Fragment;  
 import androidx.recyclerview.widget.LinearLayoutManager;  
 import androidx.recyclerview.widget.RecyclerView;  
 import java.util.ArrayList;  
 public class RecycFragment extends Fragment {  
   private static View view;  
   private static RecyclerView recyclerView;  
   private static ArrayList<Model> item_models;  
   private static RecycAdapter adapter;  
   private ActionMode mActionMode;  
   public RecycFragment() {  
   }  
   @Nullable  
   @Override  
   public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {  
     view = inflater.inflate(R.layout.recycler, container, false);  
     populateRecyclerView();  
     implementRecyclerViewClickListeners();  
     return view;  
   }  
   //Populate ListView with dummy data  
   private void populateRecyclerView() {  
     recyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);  
     recyclerView.setHasFixedSize(true);  
     recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));  
     item_models = new ArrayList<>();  
     for (int i = 1; i <= 40; i++)  
       item_models.add(new Model("Title " + i, "Sub Title " + i));  
     adapter = new RecycAdapter(getActivity(), item_models);  
     recyclerView.setAdapter(adapter);  
     adapter.notifyDataSetChanged();  
   }  
   //Implement item click and long click over recycler view  
   private void implementRecyclerViewClickListeners() {  
     recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new RecyclerClick_Listener() {  
       @Override  
       public void onClick(View view, int position) {  
         //If ActionMode not null select item  
         if (mActionMode != null)  
           onListItemSelect(position);  
       }  
       @Override  
       public void onLongClick(View view, int position) {  
         //Select item on long click  
         onListItemSelect(position);  
       }  
     }));  
   }  
   //List item select method  
   private void onListItemSelect(int position) {  
     adapter.toggleSelection(position);//Toggle the selection  
     boolean hasCheckedItems = adapter.getSelectedCount() > 0;//Check if any items are already selected or not  
     if (hasCheckedItems && mActionMode == null)  
       // there are some selected items, start the actionMode  
       mActionMode = ((AppCompatActivity) getActivity()).startSupportActionMode(new Toolbar_ActionMode_Callback(getActivity(),adapter, null, item_models, false));  
     else if (!hasCheckedItems && mActionMode != null)  
       // there no selected items, finish the actionMode  
       mActionMode.finish();  
     if (mActionMode != null)  
       //set action mode title on item selection  
       mActionMode.setTitle(String.valueOf(adapter  
           .getSelectedCount()) + " selected");  
   }  
   //Set action mode null after use  
   public void setNullToActionMode() {  
     if (mActionMode != null)  
       mActionMode = null;  
   }  
   //Delete selected rows  
   public void deleteRows() {  
     SparseBooleanArray selected = adapter  
         .getSelectedIds();//Get selected ids  
     //Loop all selected ids  
     for (int i = (selected.size() - 1); i >= 0; i--) {  
       if (selected.valueAt(i)) {  
         //If current id is selected remove the item via key  
         item_models.remove(selected.keyAt(i));  
         adapter.notifyDataSetChanged();//notify adapter  
       }  
     }  
     Toast.makeText(getActivity(), selected.size() + " item deleted.", Toast.LENGTH_SHORT).show();//Show Toast  
     mActionMode.finish();//Finish action mode after use  
   }  
 }

recycler.xml

 <?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:gravity="center"  
   android:background="#DF7F7F"  
   android:orientation="vertical">  
   <!-- Recycler View -->  
   <androidx.recyclerview.widget.RecyclerView  
     android:id="@+id/recyclerView"  
     android:layout_width="match_parent"  
     android:layout_height="match_parent"  
     android:scrollbars="none" />  
 </LinearLayout>

RecycAdapter.java

 import android.content.Context;  
 import android.graphics.Color;  
 import android.util.SparseBooleanArray;  
 import android.view.LayoutInflater;  
 import android.view.ViewGroup;  
 import androidx.recyclerview.widget.RecyclerView;  
 import java.util.ArrayList;  
 public class RecycAdapter extends RecyclerView.Adapter<DemoViewHolder> {  
   private ArrayList<Model> arrayList;  
   private Context context;  
   private SparseBooleanArray mSelectedItemsIds;  
   public RecycAdapter(Context context,  
                 ArrayList<Model> arrayList) {  
     this.context = context;  
     this.arrayList = arrayList;  
     mSelectedItemsIds = new SparseBooleanArray();  
   }  
   @Override  
   public int getItemCount() {  
     return (null != arrayList ? arrayList.size() : 0);  
   }  
   @Override  
   public void onBindViewHolder(DemoViewHolder holder,  
                  int position) {  
     //Setting text over text view  
     holder.title.setText(arrayList.get(position).getTitle());  
     holder.sub_title.setText(arrayList.get(position).getSubTitle());  
     /** Change background color of the selected items in list view **/  
     holder.itemView  
         .setBackgroundColor(mSelectedItemsIds.get(position) ? 0x9934B5E4  
             : Color.TRANSPARENT);  
   }  
   @Override  
   public DemoViewHolder onCreateViewHolder(  
       ViewGroup viewGroup, int viewType) {  
     LayoutInflater mInflater = LayoutInflater.from(viewGroup.getContext());  
     ViewGroup mainGroup = (ViewGroup) mInflater.inflate(  
         R.layout.item, viewGroup, false);  
     return new DemoViewHolder(mainGroup);  
   }  
   /***  
    * Methods required for do selections, remove selections, etc.  
    */  
   //Toggle selection methods  
   public void toggleSelection(int position) {  
     selectView(position, !mSelectedItemsIds.get(position));  
   }  
   //Remove selected selections  
   public void removeSelection() {  
     mSelectedItemsIds = new SparseBooleanArray();  
     notifyDataSetChanged();  
   }  
   //Put or delete selected position into SparseBooleanArray  
   public void selectView(int position, boolean value) {  
     if (value)  
       mSelectedItemsIds.put(position, value);  
     else  
       mSelectedItemsIds.delete(position);  
     notifyDataSetChanged();  
   }  
   //Get total selected count  
   public int getSelectedCount() {  
     return mSelectedItemsIds.size();  
   }  
   //Return all selected ids  
   public SparseBooleanArray getSelectedIds() {  
     return mSelectedItemsIds;  
   }  
 }

interface RecyclerClick_Listener

 import android.view.View;  
 public interface RecyclerClick_Listener {  
   /**  
    * Interface for Recycler View Click listener  
    **/  
   void onClick(View view, int position);  
   void onLongClick(View view, int position);  
 }

RecyclerTouchListener.java

 import android.content.Context;  
 import android.view.GestureDetector;  
 import android.view.MotionEvent;  
 import android.view.View;  
 import androidx.fragment.app.FragmentActivity;  
 import androidx.recyclerview.widget.RecyclerView;  
 public class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {  
   private GestureDetector gestureDetector;  
   private RecyclerClick_Listener clickListener;  
   public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final RecyclerClick_Listener clickListener) {  
     this.clickListener = clickListener;  
     gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {  
       @Override  
       public boolean onSingleTapUp(MotionEvent e) {  
         return true;  
       }  
       @Override  
       public void onLongPress(MotionEvent e) {  
         View child = recyclerView.findChildViewUnder(e.getX(), e.getY());  
         if (child != null && clickListener != null) {  
           clickListener.onLongClick(child, recyclerView.getChildPosition(child));  
         }  
       }  
     });  
   }  
   @Override  
   public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {  
     View child = rv.findChildViewUnder(e.getX(), e.getY());  
     if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {  
       clickListener.onClick(child, rv.getChildPosition(child));  
     }  
     return false;  
   }  
   @Override  
   public void onTouchEvent(RecyclerView rv, MotionEvent e) {  
   }  
   @Override  
   public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {  
   }  
 }

Toolbar_ActionMode_Callback

import android.content.Context;  
 import android.os.Build;  
 import android.util.Log;  
 import android.util.SparseBooleanArray;  
 import android.view.Menu;  
 import android.view.MenuItem;  
 import android.widget.Toast;  
 import androidx.appcompat.view.ActionMode;  
 import androidx.core.view.MenuItemCompat;  
 import androidx.fragment.app.Fragment;  
 import androidx.fragment.app.FragmentActivity;  
 import java.util.ArrayList;  
 public class Toolbar_ActionMode_Callback implements ActionMode.Callback {  
   private Context context;  
   private RecycAdapter recyclerView_adapter;  
   private ListAdapter listView_adapter;  
   private ArrayList<Model> message_models;  
   private boolean isListViewFragment;  
   public Toolbar_ActionMode_Callback(Context context, RecycAdapter recyclerView_adapter, ListAdapter listView_adapter, ArrayList<Model> message_models, boolean isListViewFragment) {  
     this.context = context;  
     this.recyclerView_adapter = recyclerView_adapter;  
     this.listView_adapter = listView_adapter;  
     this.message_models = message_models;  
     this.isListViewFragment = isListViewFragment;  
   }  
   @Override  
   public boolean onCreateActionMode(ActionMode mode, Menu menu) {  
     mode.getMenuInflater().inflate(R.menu.context_menu, menu);//Inflate the menu over action mode  
     return true;  
   }  
   @Override  
   public boolean onPrepareActionMode(ActionMode mode, Menu menu) {  
     //Sometimes the meu will not be visible so for that we need to set their visibility manually in this method  
     //So here show action menu according to SDK Levels  
     if (Build.VERSION.SDK_INT < 11) {  
       MenuItemCompat.setShowAsAction(menu.findItem(R.id.action_delete), MenuItemCompat.SHOW_AS_ACTION_NEVER);  
       MenuItemCompat.setShowAsAction(menu.findItem(R.id.action_copy), MenuItemCompat.SHOW_AS_ACTION_NEVER);  
       MenuItemCompat.setShowAsAction(menu.findItem(R.id.action_forward), MenuItemCompat.SHOW_AS_ACTION_NEVER);  
     } else {  
       menu.findItem(R.id.action_delete).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);  
       menu.findItem(R.id.action_copy).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);  
       menu.findItem(R.id.action_forward).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);  
     }  
     return true;  
   }  
   @Override  
   public boolean onActionItemClicked(ActionMode mode, MenuItem item) {  
     switch (item.getItemId()) {  
       case R.id.action_delete:  
         //Check if current action mode is from ListView Fragment or RecyclerView Fragment  
         if (isListViewFragment) {  
           Fragment listFragment = new MainActivity().getFragment(0);//Get list view Fragment  
           if (listFragment != null)  
             //If list fragment is not null  
             ((ListFragment) listFragment).deleteRows();//delete selected rows  
         } else {  
           //If current fragment is recycler view fragment  
           Fragment recyclerFragment = new MainActivity().getFragment(1);//Get recycler view fragment  
           if (recyclerFragment != null)  
             //If recycler fragment not null  
             ((RecycFragment) recyclerFragment).deleteRows();//delete selected rows  
         }  
         break;  
       case R.id.action_copy:  
         //Get selected ids on basis of current fragment action mode  
         SparseBooleanArray selected;  
         if (isListViewFragment)  
           selected = listView_adapter  
               .getSelectedIds();  
         else  
           selected = recyclerView_adapter  
               .getSelectedIds();  
         int selectedMessageSize = selected.size();  
         //Loop to all selected items  
         for (int i = (selectedMessageSize - 1); i >= 0; i--) {  
           if (selected.valueAt(i)) {  
             //get selected data in Model  
             Model model = message_models.get(selected.keyAt(i));  
             String title = model.getTitle();  
             String subTitle = model.getSubTitle();  
             //Print the data to show if its working properly or not  
             Log.e("Selected Items", "Title - " + title + "\n" + "Sub Title - " + subTitle);  
           }  
         }  
         Toast.makeText(context, "You selected Copy menu.", Toast.LENGTH_SHORT).show();//Show toast  
         mode.finish();//Finish action mode  
         break;  
       case R.id.action_forward:  
         Toast.makeText(context, "You selected Forward menu.", Toast.LENGTH_SHORT).show();//Show toast  
         mode.finish();//Finish action mode  
         break;  
     }  
     return false;  
   }  
   @Override  
   public void onDestroyActionMode(ActionMode mode) {  
     //When action mode destroyed remove selected selections and set action mode to null  
     //First check current fragment action mode  
     if (isListViewFragment) {  
       listView_adapter.removeSelection(); // remove selection  
       Fragment listFragment = new MainActivity().getFragment(0);//Get list fragment  
       if (listFragment != null)  
         ((ListFragment) listFragment).setNullToActionMode();//Set action mode null  
     } else {  
       recyclerView_adapter.removeSelection(); // remove selection  
       Fragment recyclerFragment = new MainActivity().getFragment(1);//Get recycler fragment  
       if (recyclerFragment != null)  
         ((RecycFragment) recyclerFragment).setNullToActionMode();//Set action mode null  
     }  
   }  
 }

context_menu.xml

 <menu 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"  
   tools:context=".MainActivity">  
   <!-- Toolbar ActionMode Menu Items -->  
   <item  
     android:id="@+id/action_delete"  
     android:icon="@drawable/delete"  
     android:orderInCategory="100"  
     android:title="delete"  
     app:showAsAction="ifRoom" />  
   <item  
     android:id="@+id/action_copy"  
     android:icon="@drawable/copy"  
     android:orderInCategory="100"  
     android:title="copy"  
     app:showAsAction="always" />  
   <item  
     android:id="@+id/action_forward"  
     android:icon="@drawable/far"  
     android:orderInCategory="100"  
     android:title="forward"  
     app:showAsAction="always" />  
 </menu>

theme.xml

  <style name="Theme.MultipleSelectionProject" parent="Theme.MaterialComponents.DayNight.NoActionBar">  
     <!-- Primary brand color. -->  
     <item name="colorPrimary">@color/purple_500</item>  
     <item name="colorPrimaryVariant">@color/purple_700</item>  
     <item name="colorOnPrimary">@color/white</item>  
     <!-- Secondary brand color. -->  
     <item name="colorSecondary">@color/teal_200</item>  
     <item name="colorSecondaryVariant">@color/teal_700</item>  
     <item name="colorOnSecondary">@color/black</item>  
     <!-- Status bar color. -->  
     <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>  
     <!-- Customize your theme here. -->  
     <!-- It should be true otherwise action mode will not overlay toolbar -->  
     <item name="windowActionModeOverlay">true</item>  
     <!-- For Custom Action Mode Background Color/Drawable -->  
     <item name="actionModeBackground">@color/purple_500</item>  
   </style>

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How to select multiple item in fragment using RecyclerView and listView in android

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