Btukfyl

I have integrated a simple messaging service in my application. I am the first stage where I can only send messages and not receive. The problem is that when I try to send a message, my send_button does not do anything. I am using a custom MessagesAdapter and sending static messages that appear when the user goes to the messages section of the app. Any help would be greatly appreciated. I will post my code and xml down below.

xml

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

<android.support.constraint.ConstraintLayout 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=".Messages">



    <android.support.v7.widget.RecyclerView

        android:id="@+id/reyclerview_message_list"

        android:layout_width="0dp"

        android:layout_height="439dp"

        android:layout_marginBottom="8dp"

        app:layout_constraintBottom_toTopOf="@+id/layout_chatbox"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintTop_toTopOf="parent"></android.support.v7.widget.RecyclerView>



    <!-- A horizontal line between the chatbox and RecyclerView -->

    <View

        android:id="@+id/view3"

        android:layout_width="0dp"

        android:layout_height="2dp"

        android:background="#dfdfdf"

        app:layout_constraintBottom_toTopOf="@+id/layout_chatbox"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent" />



    <LinearLayout

        android:id="@+id/layout_chatbox"

        android:layout_width="0dp"

        android:layout_height="wrap_content"

        android:orientation="horizontal"

        android:minHeight="48dp"

        android:background="#ffffff"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintLeft_toLeftOf="parent">



        <EditText

            android:id="@+id/edittext_chatbox"

            android:hint="Enter message"

            android:background="@android:color/transparent"

            android:layout_gravity="center"

            android:layout_marginLeft="16dp"

            android:layout_marginRight="16dp"

            android:layout_width="0dp"

            android:layout_weight="1"

            android:layout_height="wrap_content"

            android:maxLines="6"/>



        <Button

            android:id="@+id/button_chatbox_send"

            android:text="SEND"

            android:textSize="14dp"

            android:background="?attr/selectableItemBackground"

            android:clickable="true"

            android:layout_width="64dp"

            android:layout_height="48dp"

            android:gravity="center"

            android:layout_gravity="bottom" />



    </LinearLayout>



</android.support.constraint.ConstraintLayout>

Messages.java

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.TextView;



import java.util.ArrayList;



public class Messages extends Fragment {



    View myView;

    Button btn;

    TextView txtview;

    private RecyclerView rview;

    private RecyclerView.Adapter rviewadap;



    public ArrayList<MessagesModel> initMessages() {

        ArrayList<MessagesModel> mm = new ArrayList<>();

        mm.add(new MessagesModel("Hello this is a test", "12:41"));

        mm.add(new MessagesModel("This is another test", "12:43"));

        mm.add(new MessagesModel("How are you doing today", "12:43"));

        return mm;

    }



    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        myView = inflater.inflate(R.layout.activity_messages, container, false);

//        setContentView(R.layout.activity_messages);



        ArrayList<MessagesModel> mm = initMessages();



        this.rview = myView.findViewById(R.id.reyclerview_message_list);

        RecyclerView.LayoutManager layout = new LinearLayoutManager(this.getActivity());

        this.rview.setLayoutManager(layout);



        rviewadap = new MessagesAdapter(mm);

        this.rview.setAdapter(rviewadap);



//        btn = myView.findViewById(R.id.button_chatbox_send);

//        btn.setOnClickListener(new View.OnClickListener() {

//            @Override

//            public void onClick(View view) {

//                txtview = myView.findViewById(R.id.edittext_chatbox);

//                rview = myView.findViewById(R.id.reyclerview_message_list);

//                txtview.getText();

//            }

//        });

        return myView;

    }

}

MessagesAdapter.java

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.TextView;



import java.util.ArrayList;



public class MessagesAdapter extends RecyclerView.Adapter<MessagesAdapter.ViewHolder> {

    public static ArrayList<MessagesModel> mm;



    public MessagesAdapter(ArrayList<MessagesModel> mm) {

        this.mm = mm;

    }



    @NonNull

    @Override

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



        View view = (View) LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.sent_messages, viewGroup, false);

        return new ViewHolder(view);

    }



//    @Override

//    public void onBindViewHolder(@NonNull MessagesAdapter.ViewHolder viewHolder, int i) {

//

//        MessagesModel model = mm.get(i);

//        viewHolder.message.setText(model.getMessage());

//        viewHolder.time.setText(model.getTime());

//

//    }



    @Override

    public void onBindViewHolder(@NonNull final ViewHolder viewHolder, int i) {





        viewHolder.message.setText(mm.get(i).getMessage());

        viewHolder.time.setText(mm.get(i).getTime());



    }



    @Override

    public int getItemCount() {

        if(mm != null) {

            return mm.size();

        }else {

            return 0;

        }

    }



    public class ViewHolder extends RecyclerView.ViewHolder {

//        public final View view;

        public TextView message;

        public TextView time;



        public ViewHolder(@NonNull View view) {

            super(view);

//            this.view = view;

            message = view.findViewById(R.id.text_message_body);

            System.out.println("body message id is: "+message);

            time = view.findViewById(R.id.text_message_time);

        }

    }

}

i have added your Messages fragment class replace it with your existing one hopefully it works for you

public class Help extends Fragment {

    View myView;

    Button btn;

    TextView txtview;

    private RecyclerView rview;

    private RecyclerView.Adapter rviewadap;

    ArrayList<MessagesModel> mm = new ArrayList<>();



    public void initMessages() {



        mm.add(new MessagesModel("Hello this is a test", "12:41"));

        mm.add(new MessagesModel("This is another test", "12:43"));

        mm.add(new MessagesModel("How are you doing today", "12:43"));

    }



    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        myView = inflater.inflate(R.layout.help, container, false);

        initMessages();



        this.rview = myView.findViewById(R.id.reyclerview_message_list);

        txtview = myView.findViewById(R.id.edittext_chatbox);

        RecyclerView.LayoutManager layout = new LinearLayoutManager(this.getActivity());

        this.rview.setLayoutManager(layout);



        rviewadap = new MessagesAdapter(mm);

        this.rview.setAdapter(rviewadap);



        btn = myView.findViewById(R.id.button_chatbox_send);

        btn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                mm.add(new MessagesModel(""+txtview.getText().toString(), "12:41"));

                rviewadap.notifyDataSetChanged();

            }

        });

        return myView;

    }



    public class MessagesModel{

        String varMessage,varTime;

        public MessagesModel(String varMessage,String varTime){

            this.varMessage = varMessage;

            this.varTime = varTime;

        }

    }



    public class MessagesAdapter extends RecyclerView.Adapter<MessagesAdapter.ViewHolder> {

        public ArrayList<MessagesModel> mm;



        public MessagesAdapter(ArrayList<MessagesModel> mm) {

            this.mm = mm;

        }



        @NonNull

        @Override

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



            View view = (View) LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.row_weather, viewGroup, false);

            return new ViewHolder(view);

        }



        @Override

        public void onBindViewHolder(@NonNull final ViewHolder viewHolder, int i) {

            viewHolder.message.setText(mm.get(i).varMessage);

            viewHolder.time.setText(mm.get(i).varTime);

        }



        @Override

        public int getItemCount() {

            if(mm != null) {

                return mm.size();

            }else {

                return 0;

            }

        }



        public class ViewHolder extends RecyclerView.ViewHolder {

            public TextView message;

            public TextView time;



            public ViewHolder(@NonNull View view) {

                super(view);

                message = view.findViewById(R.id.day_txt);

                System.out.println("body message id is: "+message);

                time = view.findViewById(R.id.temp_txt);

            }

        }

    }

}