Android Todo List App

App Name :- Todo List

Given below is the output of the application

Now let's make this app

the first step of the app is to create an empty project in Android Studio

Step -01

Create A New Project .

Main Activity Xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:background="@color/white"
    >

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/bottom_navigation" />

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottom_navigation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        app:menu="@menu/nav_menu"
        android:background="#199E92"
        />


</RelativeLayout>

Create A Menu Resource File .

res>new>Directory>menu.

Menu>new>Menu resource file>nav_menu.

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

    <item
        android:id="@+id/task"
        android:title="Tasks"
        android:icon="@drawable/add_task"
        />
    <item
        android:id="@+id/complete"
        android:title="Complete"
        android:icon="@drawable/complete_task"
        />

</menu>

 MainActvity.Java

package com.dailytodolist.todolist;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.view.MenuItem;

import androidx.activity.EdgeToEdge;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import com.dailytodolist.todolist.Fragment.CompleteFragment;
import com.dailytodolist.todolist.Fragment.TaskFragment;
import com.google.android.material.bottomnavigation.BottomNavigationView;

public class MainActivity extends AppCompatActivity {

    BottomNavigationView bottom_navigation;

    @SuppressLint("MissingInflatedId")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bottom_navigation=findViewById(R.id.bottom_navigation);
        FragmentManager fmManager=getSupportFragmentManager();
        FragmentTransaction fmTransaction=fmManager.beginTransaction();
        fmTransaction.add(com.google.android.material.R.id.container,new TaskFragment());
        fmTransaction.commit();
        bottom_navigation.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem item) {


                if (item.getItemId()==R.id.task){

                    FragmentManager fmManager=getSupportFragmentManager();
                    FragmentTransaction fmTransaction=fmManager.beginTransaction();
                    fmTransaction.add(com.google.android.material.R.id.container,new TaskFragment());
                    fmTransaction.addToBackStack(null);
                    fmTransaction.commit();

                }else if (item.getItemId()==R.id.complete){

                    FragmentManager fmManager=getSupportFragmentManager();
                    FragmentTransaction fmTransaction=fmManager.beginTransaction();
                    fmTransaction.add(com.google.android.material.R.id.container,new CompleteFragment());
                    fmTransaction.commit();
                }









                return true;
            }
        });

    }
}

Step-04

* Create  Fragment .

TaskFragment

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




    <RelativeLayout
        android:id="@+id/searchLayout"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@drawable/edbackground"
        android:layout_marginStart="50dp"
        android:layout_marginEnd="20dp"
        android:layout_marginTop="20dp"

        >
        <EditText
            android:id="@+id/prioritysearch"
            android:layout_width="220dp"
            android:layout_height="50dp"
            android:hint="Search by priority"
            android:textColorHint="@color/black"
            android:textAlignment="center"
            android:textColor="@color/black"
            android:textStyle="bold"
            android:textSize="18sp"
            android:background="@android:color/transparent"
            />

        <ImageView
            android:layout_width="50dp"
            android:layout_height="200dp"
            android:src="@drawable/search"
            android:padding="10dp"
            android:layout_margin="4dp"
            android:layout_alignParentEnd="true"
            android:scaleType="centerCrop"
            />



    </RelativeLayout>
    <com.airbnb.lottie.LottieAnimationView
        android:id="@+id/no_data"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:lottie_rawRes="@raw/no_data2"
        app:lottie_autoPlay="true"
        app:lottie_loop="true"
        android:layout_below="@id/searchLayout"
        android:visibility="gone"
        />





    <androidx.recyclerview.widget.RecyclerView
        android:layout_marginTop="10dp"
        android:layout_below="@id/searchLayout"
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />





   <com.google.android.material.floatingactionbutton.FloatingActionButton
       android:id="@+id/fbBtn"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_alignParentRight="true"
       android:layout_margin="30dp"
       android:src="@drawable/add"
       android:layout_marginBottom="50dp"
       android:layout_alignParentBottom="true"
       />

</RelativeLayout>

Step-05

Task Fragment Java

package com.dailytodolist.todolist.Fragment;

import android.content.Intent;
import android.os.Bundle;

import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;

import com.dailytodolist.todolist.Adapter.TaskAdapter;
import com.dailytodolist.todolist.OtherActivity.ModelClass;
import com.dailytodolist.todolist.OtherActivity.TaskInputActivity;
import com.dailytodolist.todolist.R;
import com.dailytodolist.todolist.RoomDatabase.AdapterListener;
import com.dailytodolist.todolist.RoomDatabase.TaskDao;
import com.dailytodolist.todolist.RoomDatabase.ToDoDatabase;
import com.google.android.material.floatingactionbutton.FloatingActionButton;

import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;


public class TaskFragment extends Fragment implements AdapterListener {

    RecyclerView recyclerview;
    ToDoDatabase toDoDatabase;
    TaskDao taskDao;
    TaskAdapter taskAdapter;
    EditText prioritysearch;
    com.airbnb.lottie.LottieAnimationView no_data;
    FloatingActionButton fbBtn;



    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View myView= inflater.inflate(R.layout.fragment_task, container, false);
        fbBtn=myView.findViewById(R.id.fbBtn);
        recyclerview=myView.findViewById(R.id.recyclerview);
        prioritysearch=myView.findViewById(R.id.prioritysearch);
        no_data=myView.findViewById(R.id.no_data);

        toDoDatabase=ToDoDatabase.getInstance(getContext());
        taskDao=toDoDatabase.getTaskDao();

        taskAdapter=new TaskAdapter(getContext(),this);
        fatchData();
        recyclerview.setLayoutManager(new LinearLayoutManager(getContext()));
        recyclerview.setAdapter(taskAdapter);

        NodataAnim();
        SearchData();
      //  LoadBtn();


        fbBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(getContext(), TaskInputActivity.class));
            }
        });



        if (container!=null){
            container.removeAllViews();
        }
        return myView;
    }


    public void fatchData(){
        List<ModelClass> taskList=taskDao.getAllusers();
        for (int i=0;i<taskList.size();i++){
            ModelClass task=taskList.get(i);
            taskAdapter.addTask(task);
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        taskAdapter.clearTask();
        fatchData();



    }
    private void searchbyPriority(String prority) {
        ExecutorService executorService = Executors.newSingleThreadExecutor();
        executorService.execute(() -> {
            List<ModelClass> usersList = taskDao.searchbypriority("%" + prority + "%"); // সার্চ কোয়েরি
            getActivity().runOnUiThread(() -> {
                taskAdapter.clearTask(); // আগের ডাটা ক্লিয়ার
                for (ModelClass task : usersList) {
                    taskAdapter.addTask(task); // নতুন সার্চ ফলাফল যোগ করা
                }
            });
        });


        ///////////////Search Method//////////////////


    }




    @Override
    public void onDelete(int id, int pos) {

        taskDao.delete(id);
        taskAdapter.removeTask(pos);

    }






    public void NodataAnim(){

        List<ModelClass> tasklist = taskDao.getAllusers(); // Fetch all users from the database

        if (tasklist.isEmpty()) {
            // If no data, hide RecyclerView and show LottieAnimationView
            recyclerview.setVisibility(View.GONE);
            no_data.setVisibility(View.VISIBLE); // Assuming no_data is your LottieAnimationView
            no_data.playAnimation(); // Start Lottie animation if you want
        } else {
            // If data exists, show RecyclerView and hide LottieAnimationView
            recyclerview.setVisibility(View.VISIBLE);
            no_data.setVisibility(View.GONE);

            // Update the adapter with the fetched users
            taskAdapter.clearTask(); // Clear old data from the adapter
            for (ModelClass task : tasklist) {
                taskAdapter.addTask(task); // Add new users to the adapter
            }
        }


    }


    public void SearchData(){
        prioritysearch.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            }

            @Override
            public void afterTextChanged(Editable editable) {
                String searchQuery = editable.toString();
                searchbyPriority (searchQuery); // সার্চ মেথড কল করা
            }
        });
    }


}

Step-06

*Create Fragment

CompleteFragment

CompleteFragment Xml

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



    <TextView
        android:id="@+id/task"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Complete Task List"
        android:textSize="25sp"
        android:textStyle="bold"
        android:layout_marginTop="20dp"
        android:layout_marginStart="10dp"
        android:textColor="#009688"
        android:layout_centerHorizontal="true"
        android:textAlignment="center"
        />

    <com.airbnb.lottie.LottieAnimationView
        android:id="@+id/no_data"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:lottie_rawRes="@raw/no_data_anim"
        app:lottie_autoPlay="true"
        app:lottie_loop="true"
        android:layout_below="@id/task"
        android:visibility="gone"
        />


    <androidx.recyclerview.widget.RecyclerView
        android:layout_marginTop="10dp"
        android:layout_below="@id/task"
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />


</RelativeLayout>

Step-07

CompleteFragment Java

package com.dailytodolist.todolist.Fragment;

import android.content.DialogInterface;
import android.graphics.Paint;
import android.os.Bundle;

import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;

import com.airbnb.lottie.LottieAnimationView;
import com.dailytodolist.todolist.Adapter.FinshedAdapter;
import com.dailytodolist.todolist.Adapter.TaskAdapter;
import com.dailytodolist.todolist.OtherActivity.FinishedModel;
import com.dailytodolist.todolist.OtherActivity.ModelClass;
import com.dailytodolist.todolist.R;
import com.dailytodolist.todolist.RoomDatabase.AdapterListener;
import com.dailytodolist.todolist.RoomDatabase.FinishDao;
import com.dailytodolist.todolist.RoomDatabase.FinishedListner;
import com.dailytodolist.todolist.RoomDatabase.TaskDao;
import com.dailytodolist.todolist.RoomDatabase.ToDoDatabase;

import java.util.List;


public class CompleteFragment extends Fragment  {
    RecyclerView recyclerview;
    ToDoDatabase toDoDatabase;
    FinishDao finishDao;
    FinshedAdapter finshedAdapter;
    EditText prioritysearch;
    LottieAnimationView no_data;
    TextView task;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View myView= inflater.inflate(R.layout.fragment_complete, container, false);

        recyclerview=myView.findViewById(R.id.recyclerview);
        task=myView.findViewById(R.id.task);
        no_data=myView.findViewById(R.id.no_data);
        toDoDatabase=ToDoDatabase.getInstance(getContext());
        finishDao=toDoDatabase.getFinishedDao();
        finshedAdapter=new FinshedAdapter(getContext());
        fatchData();
        recyclerview.setLayoutManager(new LinearLayoutManager(getContext()));
        recyclerview.setAdapter(finshedAdapter);
        NodataAnim();

        task.setPaintFlags(task.getPaintFlags()|
         Paint.ANTI_ALIAS_FLAG);




















if (container!=null){
    container.removeAllViews();
}
        return myView;
    }

    public void fatchData(){
        List<FinishedModel> finisList=finishDao.getAllfinish();
        for (int i=0;i<finisList.size();i++){
            FinishedModel finish=finisList.get(i);
            finshedAdapter.addFinished(finish);
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        finshedAdapter.FinishedclearTask();
        fatchData();
    }



    public void NodataAnim(){

        List<FinishedModel> finishlist = finishDao.getAllfinish(); // Fetch all users from the database

        if (finishlist.isEmpty()) {
            // If no data, hide RecyclerView and show LottieAnimationView
            recyclerview.setVisibility(View.GONE);
            no_data.setVisibility(View.VISIBLE); // Assuming no_data is your LottieAnimationView
            no_data.playAnimation(); // Start Lottie animation if you want
        } else {
            // If data exists, show RecyclerView and hide LottieAnimationView
            recyclerview.setVisibility(View.VISIBLE);
            no_data.setVisibility(View.GONE);

            // Update the adapter with the fetched users
            finshedAdapter.FinishedclearTask(); // Clear old data from the adapter
            for (FinishedModel task : finishlist) {
                finshedAdapter.addFinished(task); // Add new users to the adapter
            }
        }


    }



}

Step-08

Create Room DataBase Class

ToDoDatabase

package com.dailytodolist.todolist.RoomDatabase;

import android.content.Context;

import androidx.room.Room;
import androidx.room.RoomDatabase;

import com.dailytodolist.todolist.OtherActivity.FinishedModel;
import com.dailytodolist.todolist.OtherActivity.ModelClass;

@androidx.room.Database(entities = {ModelClass.class, FinishedModel.class},version = 1)
public abstract class ToDoDatabase extends RoomDatabase {
    public abstract TaskDao getTaskDao();
    public abstract FinishDao getFinishedDao();


    public static ToDoDatabase INSTANCE;


    public static ToDoDatabase getInstance(Context context){

        if (INSTANCE==null){

            INSTANCE= Room.databaseBuilder(context,ToDoDatabase.class,"ToDoDatabase")
                    .allowMainThreadQueries()
                    .fallbackToDestructiveMigration()
                    .build();
        }
        return INSTANCE;
    }
}

Step-09

Create a  Interface

TaskDao

package com.dailytodolist.todolist.RoomDatabase;

import androidx.room.Dao;
import androidx.room.Insert;
import androidx.room.Query;
import androidx.room.Update;

import com.dailytodolist.todolist.OtherActivity.ModelClass;

import java.util.List;

@Dao
public interface TaskDao {
    @Insert
    void insert(ModelClass modelClass);

    @Update
    void update(ModelClass modelClass);


    @Query("delete from ModelClass where id=:id")
    void delete(int id);

    @Query("SELECT * FROM ModelClass WHERE priority LIKE :priority")
    List<ModelClass> searchbypriority(String priority);

    @Query("select* from ModelClass order by id desc ")
    List<ModelClass> getAllusers();


}

Step-10

Create a Interface

FinishDao

package com.dailytodolist.todolist.RoomDatabase;

import androidx.room.Dao;
import androidx.room.Insert;
import androidx.room.Query;
import androidx.room.Update;

import com.dailytodolist.todolist.OtherActivity.FinishedModel;
import com.dailytodolist.todolist.OtherActivity.ModelClass;

import java.util.List;

@Dao
public interface FinishDao {
    @Insert
    void insert(FinishedModel finishedModel);

    @Update
    void update(FinishedModel finishedModel);


    @Query("delete from FinishedModel where id=:id")
    void delete(int id);

    @Query("SELECT * FROM FinishedModel WHERE Fpriority LIKE :priority")
    List<FinishedModel> searchbypriority(String priority);

    @Query("select* from FinishedModel order by id desc ")
    List<FinishedModel> getAllfinish();



}

Step-11

*Create Class

ModelClass

package com.dailytodolist.todolist.OtherActivity;

import androidx.room.Entity;
import androidx.room.PrimaryKey;

@Entity
public class ModelClass {
    @PrimaryKey(autoGenerate = true)
    private int id;
    String task;
    String priority;
    String date;
    String time;
    String note;

    public ModelClass(int id, String task, String priority, String date, String time, String note) {
        this.id = id;
        this.task = task;
        this.priority = priority;
        this.date = date;
        this.time = time;
        this.note = note;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getTask() {
        return task;
    }

    public void setTask(String task) {
        this.task = task;
    }

    public String getPriority() {
        return priority;
    }

    public void setPriority(String priority) {
        this.priority = priority;
    }

    public String getDate() {
        return date;
    }

    public void setDate(String date) {
        this.date = date;
    }

    public String getTime() {
        return time;
    }

    public void setTime(String time) {
        this.time = time;
    }

    public String getNote() {
        return note;
    }

    public void setNote(String note) {
        this.note = note;
    }
}

Step-12

*Create a Class

FinishedModel

package com.dailytodolist.todolist.OtherActivity;

import androidx.room.Entity;
import androidx.room.PrimaryKey;

@Entity
public class FinishedModel {
    @PrimaryKey(autoGenerate = true)
    int id;
    String Ftask;
    String Fpriority;
    String Fnote;
    String finisheTimed;
    public FinishedModel(){}

    public FinishedModel(int id, String ftask, String fpriority, String fnote, String finisheTimed) {
        this.id = id;
        Ftask = ftask;
        Fpriority = fpriority;
        Fnote = fnote;
        this.finisheTimed = finisheTimed;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getFtask() {
        return Ftask;
    }

    public void setFtask(String ftask) {
        Ftask = ftask;
    }

    public String getFpriority() {
        return Fpriority;
    }

    public void setFpriority(String fpriority) {
        Fpriority = fpriority;
    }

    public String getFnote() {
        return Fnote;
    }

    public void setFnote(String fnote) {
        Fnote = fnote;
    }

    public String getFinisheTimed() {
        return finisheTimed;
    }

    public void setFinisheTimed(String finisheTimed) {
        this.finisheTimed = finisheTimed;
    }
}

Step-13

Create Adapter Class

TaskAdapter

package com.dailytodolist.todolist.Adapter;

import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.cardview.widget.CardView;
import androidx.recyclerview.widget.RecyclerView;

import com.dailytodolist.todolist.Fragment.TaskFragment;
import com.dailytodolist.todolist.OtherActivity.FinishedModel;
import com.dailytodolist.todolist.OtherActivity.ModelClass;
import com.dailytodolist.todolist.R;
import com.dailytodolist.todolist.RoomDatabase.AdapterListener;
import com.dailytodolist.todolist.RoomDatabase.FinishDao;
import com.dailytodolist.todolist.RoomDatabase.FinishedListner;
import com.dailytodolist.todolist.RoomDatabase.ToDoDatabase;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import java.util.Locale;

public class TaskAdapter extends RecyclerView.Adapter<TaskAdapter.mViewHolder> {
    Context context;
    AdapterListener adapterListener;
    List<ModelClass> tasksList;
    ToDoDatabase todoDb;
    FinishDao finishDao;
    Calendar calendar;
    FinshedAdapter finshedAdapter;



    public TaskAdapter(Context context, AdapterListener listener) {
        this.context = context;
        this.adapterListener=listener;
        tasksList=new ArrayList<>();


        todoDb=ToDoDatabase.getInstance(context);
        finishDao=todoDb.getFinishedDao();


    }

    public void addTask(ModelClass task){
        tasksList.add(task);
        notifyDataSetChanged();
    }
    public void removeTask(int positon){
        tasksList.remove(positon);
        notifyDataSetChanged();


    }
    public void clearTask() {
        tasksList.clear();
        notifyDataSetChanged();
    }


    @NonNull
    @Override
    public mViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View myview= LayoutInflater.from(parent.getContext()).inflate(R.layout.task_layout,parent,false);
        return new mViewHolder(myview);
    }

    @SuppressLint("ResourceAsColor")
    @Override
    public void onBindViewHolder(@NonNull mViewHolder holder, @SuppressLint("RecyclerView") int position) {


        ModelClass modelClass=tasksList.get(position);

        holder.task.setText("Task : "+modelClass.getTask());
        holder.dateandtime.setText("Work time : "+modelClass.getDate()+". At :- "+modelClass.getTime());
        holder.task_note.setText("Task Note : "+modelClass.getNote());


        if (modelClass.getPriority().equals("Emergency")){
            holder.priorityflag.setImageResource(R.drawable.veryimportant);
            holder.priority.setText("Priority : Very Emergency");

        }else if (modelClass.getPriority().equals("Important")){
            holder.priorityflag.setImageResource(R.drawable.medium);
            holder.priority.setText("Priority : Important");
        }else if (modelClass.getPriority().equals("Average")){
            holder.priorityflag.setImageResource(R.drawable.low);
            holder.priority.setText("Priority : Average");

        }

        holder.contentLay.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {



                new AlertDialog.Builder(context)
                        .setTitle("Finished Task")
                        .setMessage("Are you finish task?")
                        .setIcon(R.drawable.finished)
                        .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialogInterface, int i) {
                                adapterListener.onDelete(modelClass.getId(),position);
                                dialogInterface.cancel();

                                String Ftask=modelClass.getTask();
                                String Fpriority=modelClass.getPriority();
                                String Fnote=modelClass.getNote();
                                calendar = Calendar.getInstance();
                                SimpleDateFormat sdf = new SimpleDateFormat("dd/mm/yyyy  hh:mm", Locale.getDefault());
                                String finisheTimed = sdf.format(calendar.getTime());
                                finshedAdapter=new FinshedAdapter(context);
                                FinishedModel finishedModel=new FinishedModel(0,Ftask,Fpriority,Fnote,finisheTimed);
                                finshedAdapter.addFinished(finishedModel);
                                finishDao.insert(finishedModel);







                            }
                        })
                        .setNegativeButton("No", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialogInterface, int i) {

                            }
                        })
                        .setCancelable(false)

                        .show();


            }
        });





    }

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

    public class mViewHolder extends RecyclerView.ViewHolder{

        TextView task,priority,dateandtime,task_note;
        ImageView priorityflag;
        CardView contentLay;

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

            task=itemView.findViewById(R.id.task);
            priority=itemView.findViewById(R.id.priority);
            priorityflag=itemView.findViewById(R.id.priorityflag);
            dateandtime=itemView.findViewById(R.id.dateandtime);
            task_note=itemView.findViewById(R.id.task_note);
            contentLay=itemView.findViewById(R.id.contentLay);
        }
    }


}

Step-14

Create a xml layout

task_layout

<?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"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardCornerRadius="8dp"
        app:cardElevation="4dp"
        app:cardUseCompatPadding="true"
        android:background="@drawable/iteamback"
        android:id="@+id/contentLay"

        >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="05dp"
            android:orientation="vertical"
            android:background="@color/white"
            >

            <TextView
                android:id="@+id/task"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/black"
                android:textSize="20sp"
                android:textStyle="bold"
                android:layout_marginStart="05dp"
                android:layout_marginTop="10dp"
                />
            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="05dp"

                >

                <TextView
                    android:id="@+id/priority"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textSize="20sp"
                    android:textStyle="bold"
                    android:textColor="@color/black"

                    />
                <ImageView
                    android:id="@+id/priorityflag"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="20dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginEnd="20dp"

                    />


            </RelativeLayout>

            <TextView
                android:id="@+id/dateandtime"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="20sp"
                android:textStyle="bold"
                android:textColor="@color/black"
                android:layout_marginStart="05dp"

                />
            <TextView
                android:id="@+id/task_note"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="20sp"
                android:textStyle="bold"
                android:textColor="@color/black"
                android:layout_marginStart="05dp"
                android:layout_marginBottom="10dp"

                />

        </LinearLayout>


    </androidx.cardview.widget.CardView>


</LinearLayout>

Step-15

Create a Adapter Class

FinshedAdapter

package com.dailytodolist.todolist.Adapter;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Paint;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.cardview.widget.CardView;
import androidx.recyclerview.widget.RecyclerView;

import com.dailytodolist.todolist.OtherActivity.FinishedModel;
import com.dailytodolist.todolist.R;

import com.dailytodolist.todolist.RoomDatabase.FinishedListner;

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

public class FinshedAdapter extends RecyclerView.Adapter<FinshedAdapter.mViewHolder> {

    Context context;
    List<FinishedModel> finishedModelList;

    public FinshedAdapter(Context context) {
        this.context = context;

        finishedModelList=new ArrayList<>();
    }



    public void addFinished(FinishedModel finishedModel){
        finishedModelList.add(finishedModel);
        notifyDataSetChanged();
    }
    public void removeTask(int positon){
        finishedModelList.remove(positon);
        notifyDataSetChanged();


    }
    public void FinishedclearTask() {
        finishedModelList.clear();
        notifyDataSetChanged();
    }



    @NonNull
    @Override
    public mViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

        View myview= LayoutInflater.from(parent.getContext()).inflate(R.layout.finished_layout,parent,false);
        return new mViewHolder(myview);
    }

    @SuppressLint("ResourceAsColor")
    @Override
    public void onBindViewHolder(@NonNull mViewHolder holder, @SuppressLint("RecyclerView") int position) {
        FinishedModel finishedModel=finishedModelList.get(position);

        holder.task.setText("Task : "+finishedModel.getFtask());
        holder.dateandtime.setText("Finished : "+finishedModel.getFinisheTimed());
        holder.task_note.setText("Task Note : "+finishedModel.getFnote());
        //////////////Cross Line///////////////
        holder. task.setPaintFlags(holder.task.getPaintFlags()|
                Paint.STRIKE_THRU_TEXT_FLAG);

        holder. task_note.setPaintFlags(holder.task_note.getPaintFlags()|
                Paint.STRIKE_THRU_TEXT_FLAG);

        holder. dateandtime.setPaintFlags(holder.dateandtime.getPaintFlags()|
                Paint.STRIKE_THRU_TEXT_FLAG);
        holder. priority.setPaintFlags(holder.priority.getPaintFlags()|
                Paint.STRIKE_THRU_TEXT_FLAG);
        //////////////Cross Line///////////////


        if (finishedModel.getFpriority().equals("Emergency")){
            holder.priorityflag.setImageResource(R.drawable.veryimportant);
            holder.priority.setText("Priority : Very Emergency");

        }else if (finishedModel.getFpriority().equals("Important")){
            holder.priorityflag.setImageResource(R.drawable.medium);
            holder.priority.setText("Priority : Important");
        }else if (finishedModel.getFpriority().equals("Average")){
            holder.priorityflag.setImageResource(R.drawable.low);
            holder.priority.setText("Priority : Average");

        }

        holder.contentLay.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {


                new AlertDialog.Builder(context)
                        .setTitle("Remove History")
                        .setMessage("Are you remove history?")
                        .setIcon(R.drawable.finished)
                        .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialogInterface, int i) {
                              // finishedListner.onDelete(finishedModel.getId(),position);
                                dialogInterface.cancel();



                            }
                        })
                        .setNegativeButton("No", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialogInterface, int i) {

                            }
                        })
                        .setCancelable(false)

                        .show();

            }
        });

    }

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

    public class mViewHolder extends RecyclerView.ViewHolder{

        TextView task,priority,dateandtime,task_note;
        ImageView priorityflag;
        CardView contentLay;
        RelativeLayout LineLayout;

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

            task=itemView.findViewById(R.id.task);
            priority=itemView.findViewById(R.id.priority);
            priorityflag=itemView.findViewById(R.id.priorityflag);
            dateandtime=itemView.findViewById(R.id.dateandtime);
            task_note=itemView.findViewById(R.id.task_note);
            contentLay=itemView.findViewById(R.id.contentLay);
            LineLayout=itemView.findViewById(R.id.LineLayout);
        }
    }
}

Step-16

Create a xml layout

finished_layout

<?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"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardCornerRadius="8dp"
        app:cardElevation="4dp"
        app:cardUseCompatPadding="true"
        android:background="@drawable/iteamback"
        android:id="@+id/contentLay"

        >

        <RelativeLayout
            android:id="@+id/LineLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="05dp"
            android:orientation="vertical"
            android:background="@color/white"
            >


            <TextView
                android:id="@+id/task"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/black"
                android:textSize="20sp"
                android:textStyle="bold"
                android:layout_marginStart="05dp"
                android:layout_marginTop="10dp"
                android:text="Task : "
                />
            <RelativeLayout
                android:id="@+id/priorityLay"
                android:layout_below="@id/task"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="05dp"

                >


                <TextView
                    android:id="@+id/priority"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textSize="20sp"
                    android:textStyle="bold"
                    android:textColor="@color/black"
                    android:text="Priority : "



                    />
                <ImageView
                    android:id="@+id/priorityflag"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="20dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginEnd="20dp"

                    />


            </RelativeLayout>


            <TextView
                android:id="@+id/dateandtime"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="20sp"
                android:textStyle="bold"
                android:textColor="@color/black"
                android:layout_marginStart="05dp"
                android:layout_below="@id/priorityLay"
                android:text="Finished : "


                />

            <TextView
                android:id="@+id/task_note"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="20sp"
                android:textStyle="bold"
                android:textColor="@color/black"
                android:layout_marginStart="05dp"
                android:layout_marginBottom="10dp"
                android:layout_below="@id/dateandtime"
                android:text="Task Note : "



                />

        </RelativeLayout>


    </androidx.cardview.widget.CardView>

</LinearLayout>

Step-17

Create a Activity

TaskInputActivity

xml Code

<?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:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".TaskInputActivity"
    android:orientation="vertical"
    android:background="@color/white"
    >
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:orientation="horizontal"
        android:background="@drawable/toolbar"
        >

        <ImageView
            android:id="@+id/back"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/backarrow"
            android:layout_marginTop="35dp"
            android:layout_marginStart="20dp"

            />

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="View and Edit"
            android:textSize="25sp"
            android:textStyle="bold"
            android:layout_centerInParent="true"
            />


</RelativeLayout>


    <com.google.android.material.textfield.TextInputLayout
        android:id="@+id/filledTextField"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:layout_marginTop="10dp"
        android:layout_marginEnd="10dp"
        android:hint="What needs to be done?"
        app:hintTextColor="@color/black"
        android:textColorHint="@color/black"
        app:boxStrokeColor="@color/black"
        app:cursorColor="@color/black"

        >
        <com.google.android.material.textfield.TextInputEditText
            android:id="@+id/todo_task"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColorHint="@color/black"
            android:textColor="@color/black"
            android:textSize="20sp"
            android:textStyle="bold"


            />

    </com.google.android.material.textfield.TextInputLayout>




    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Priority"
        android:textSize="25sp"
        android:textStyle="bold"
        android:layout_marginTop="15dp"
        android:layout_marginStart="10dp"
        android:textColor="#009688"
        />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="15dp"
        android:layout_marginStart="10dp"
        android:layout_marginEnd="10dp"
        android:background="#0C000000"
        >


        <CheckBox
            android:id="@+id/phigh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Emergency"
            android:textColor="#0B2FF6"
            android:textStyle="bold"
            android:textSize="20sp"
            />
        <CheckBox
            android:id="@+id/pmedium"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Important"
            android:textColor="#0B2FF6"
            android:textStyle="bold"
            android:textSize="20sp"
            android:layout_centerInParent="true"
            />
        <CheckBox
            android:id="@+id/plow"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Average"
            android:textColor="#0B2FF6"
            android:textStyle="bold"
            android:textSize="20sp"
            android:layout_alignParentRight="true"
            />

    </RelativeLayout>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Due Date"
        android:textSize="25sp"
        android:textStyle="bold"
        android:layout_marginTop="15dp"
        android:layout_marginStart="10dp"
        android:textColor="#009688"
        />



    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        >

        <ImageView
            android:id="@+id/date"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/calender"
            android:layout_marginStart="10dp"
            />

        <TextView
            android:id="@+id/datedisplay"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=""
            android:textSize="20sp"
            android:textStyle="bold"
            android:layout_marginStart="10dp"
            android:textColor="#3F51B5"
            android:layout_gravity="center"
            />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        >

        <ImageView
            android:id="@+id/time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/time"
            android:layout_marginStart="10dp"
            android:layout_gravity="center"

            />

        <TextView
            android:id="@+id/timedisplay"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=""
            android:textSize="20sp"
            android:textStyle="bold"
            android:layout_marginStart="10dp"
            android:textColor="#3F51B5"
            android:layout_gravity="center"
            />

    </LinearLayout>



    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Reminder"
        android:textSize="25sp"
        android:textStyle="bold"
        android:layout_marginTop="15dp"
        android:layout_marginStart="10dp"
        android:textColor="#009688"
        />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        >

        <ImageView
            android:id="@+id/alarm"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/alarm"
            android:layout_marginStart="10dp"
            android:layout_gravity="center"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Set reminder"
            android:textSize="20sp"
            android:textStyle="bold"
            android:layout_marginStart="10dp"
            android:textColor="#3F51B5"
            android:layout_gravity="center"
            />

    </LinearLayout>



    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"

        >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Notes"
            android:textSize="25sp"
            android:textStyle="bold"
            android:layout_marginStart="10dp"
            android:textColor="#009688"
            />



        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/savefbBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:src="@drawable/save"
            android:layout_marginEnd="20dp"
            android:layout_marginBottom="5dp"
                  />

    </RelativeLayout>

    <EditText
        android:id="@+id/note"
        android:layout_margin="10dp"
        android:layout_width="match_parent"
        android:layout_height="120dp"
        android:hint=" Write Your Note"
        android:background="@drawable/edbackground"
        android:textColorHint="@color/black"
        android:textColor="@color/black"
        android:textSize="18sp"
        android:textStyle="italic|bold"
        android:gravity="top|start"
        app:cursorColor="@color/black"

        />

</LinearLayout>

Step-18

TaskInputActivity Java Code

package com.dailytodolist.todolist.OtherActivity;

import android.annotation.SuppressLint;
import android.app.DatePickerDialog;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import com.dailytodolist.todolist.Adapter.TaskAdapter;
import com.dailytodolist.todolist.Fragment.TaskFragment;
import com.dailytodolist.todolist.R;
import com.dailytodolist.todolist.RoomDatabase.AdapterListener;
import com.dailytodolist.todolist.RoomDatabase.TaskDao;
import com.dailytodolist.todolist.RoomDatabase.ToDoDatabase;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.textfield.TextInputEditText;

import java.util.Calendar;

public class TaskInputActivity extends AppCompatActivity implements AdapterListener {

    ImageView back,date,time,alarm;
    CheckBox phigh,pmedium,plow;
    FloatingActionButton savefbBtn;
    TextInputEditText todo_task;
    TextView datedisplay,timedisplay;
    EditText note;
    TaskAdapter taskAdapter;

    ToDoDatabase toDoDatabase;
    TaskDao taskDao;

    @SuppressLint("MissingInflatedId")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_task_input);

        back=findViewById(R.id.back);
        date=findViewById(R.id.date);
        time=findViewById(R.id.time);
        alarm=findViewById(R.id.alarm);
        phigh=findViewById(R.id.phigh);
        pmedium=findViewById(R.id.pmedium);
        plow=findViewById(R.id.plow);
        savefbBtn=findViewById(R.id.savefbBtn);
        todo_task=findViewById(R.id.todo_task);
        note=findViewById(R.id.note);
        datedisplay=findViewById(R.id.datedisplay);
        timedisplay=findViewById(R.id.timedisplay);

        taskAdapter=new TaskAdapter(this,  this);
        toDoDatabase=ToDoDatabase.getInstance(this);
        taskDao=toDoDatabase.getTaskDao();



        DatePicker();
        TimePicker();
        SaveData();

        back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                finish();
            }
        });



    }


    public void DatePicker(){

        date.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {



                final Calendar c = Calendar.getInstance();

                // on below line we are getting
                // our day, month and year.
                int year = c.get(Calendar.YEAR);
                int month = c.get(Calendar.MONTH);
                int day = c.get(Calendar.DAY_OF_MONTH);

                // on below line we are creating a variable for date picker dialog.
                DatePickerDialog datePickerDialog = new DatePickerDialog(
                        // on below line we are passing context.
                        TaskInputActivity.this,
                        new DatePickerDialog.OnDateSetListener() {
                            @Override
                            public void onDateSet(DatePicker view, int year,
                                                  int monthOfYear, int dayOfMonth) {
                                // on below line we are setting date to our text view.
                                datedisplay.setText(dayOfMonth + "-" + (monthOfYear + 1) + "-" + year);

                            }
                        },
                        // on below line we are passing year,
                        // month and day for selected date in our date picker.
                        year, month, day);
                // at last we are calling show to
                // display our date picker dialog.
                datePickerDialog.show();
            }
        });





    }

    public void TimePicker(){

        time.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                final Calendar c = Calendar.getInstance();

                // on below line we are getting our hour, minute.
                int hour = c.get(Calendar.HOUR);
                int minute = c.get(Calendar.MINUTE);

                // on below line we are initializing our Time Picker Dialog
                TimePickerDialog timePickerDialog = new TimePickerDialog(TaskInputActivity.this,
                        new TimePickerDialog.OnTimeSetListener() {
                            @Override
                            public void onTimeSet(TimePicker view, int hourOfDay,
                                                  int minute) {
                                // on below line we are setting selected time
                                // in our text view.
                                timedisplay.setText(hourOfDay + ":" + minute);
                            }
                        }, hour, minute,true);
                // at last we are calling show to
                // display our time picker dialog.
                timePickerDialog.show();
            }
        });



    }


    public void SaveData(){

        savefbBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String checkdData="";
                if (phigh.isChecked())
                {
                    checkdData =  phigh.getText().toString();

                }


                if (pmedium.isChecked())
                {
                    checkdData= pmedium.getText().toString();
                }


                if (plow.isChecked())
                {
                    checkdData= plow.getText().toString();
                }


             String stask =todo_task.getText().toString();
             String sdate=datedisplay.getText().toString();
             String stime=timedisplay.getText().toString();
             String snote=note.getText().toString();

             ModelClass md=new ModelClass(0,stask,checkdData,sdate,stime,snote);
             taskAdapter.addTask(md);
             taskDao.insert(md);



             Toast.makeText(TaskInputActivity.this, "Saved", Toast.LENGTH_SHORT).show();







            }
        });
    }




    @Override
    public void onDelete(int id, int pos) {

    }


}

Step-19

Create a Interface

AdapterListener

package com.dailytodolist.todolist.RoomDatabase;

import com.dailytodolist.todolist.OtherActivity.ModelClass;

public interface AdapterListener  {
    void onDelete(int id,int pos);
}