Firebase Recycle View Adapter in Android

 Firebase Recycle View Adapter in Android

       Data insert Self(Kuad he data insert kara)

 MainActivity

XML Code:-

 

<androidx.constraintlayout.widget.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=".MainActivity">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recycleview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout_editor_absoluteX="233dp"
        tools:layout_editor_absoluteY="279dp"
        />
</androidx.constraintlayout.widget.ConstraintLayout>

 

Only Xml(Resourse Layout):-

 

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    app:cardCornerRadius="6dp"
    android:elevation="6dp"
    app:cardUseCompatPadding="true"
    >
    <RelativeLayout

        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="15dp">
        <ImageView
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:src="@drawable/ic_launcher_background"
            android:layout_centerVertical="true"
            android:id="@+id/img1"/>
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/nametext"
            android:text="Student Name"
            android:textStyle="bold"
            android:textSize="25sp"
            android:layout_toRightOf="@+id/img1"
            android:layout_marginLeft="10dp"/>
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/coursetext"
            android:text="Course Name"
            android:textSize="25sp"
            android:layout_toRightOf="@+id/img1"
            android:layout_below="@+id/nametext"
            android:layout_marginLeft="10dp"/>
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/emailtext"
            android:text="Email Id"
            android:textSize="25sp"
            android:layout_toRightOf="@+id/img1"
            android:layout_below="@+id/coursetext"
            android:layout_marginLeft="10dp"/>


    </RelativeLayout>

</androidx.cardview.widget.CardView>

 

Java Code MainActivity :-

 

package com.niranjan.secondbook;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.SearchView;

import com.firebase.ui.database.FirebaseRecyclerOptions;
import com.google.firebase.database.FirebaseDatabase;

public class MainActivity extends AppCompatActivity {
RecyclerView recyclerView;
MainAdapter mainAdapter;
FirebaseDatabase firebaseDatabase;

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


        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        FirebaseRecyclerOptions<Mainmodal> options=
                new FirebaseRecyclerOptions.Builder<Mainmodal>()
                .setQuery(FirebaseDatabase.getInstance().getReference().child("teacher"),Mainmodal.class).build();

        mainAdapter=new MainAdapter(options);
        recyclerView.setAdapter(mainAdapter);
    }

    @Override
    protected void onStart() {
        super.onStart();
        mainAdapter.startListening();
    }

    @Override
    protected void onStop() {
        super.onStop();
        mainAdapter.stopListening();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.search,menu);
        MenuItem item = menu.findItem(R.id.search);
        SearchView searchView = (SearchView) item.getActionView();
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                textSearch(query);
                return false;
            }

            @Override
            public boolean onQueryTextChange(String query) {
                textSearch(query);
                return false;
            }
        });


        return super.onCreateOptionsMenu(menu);
    }
    private  void  textSearch(String str){
        FirebaseRecyclerOptions<Mainmodal> options=
                new FirebaseRecyclerOptions.Builder<Mainmodal>()

                        .setQuery(FirebaseDatabase.getInstance().getReference().child("teacher").orderByChild("name").startAt(str).endAt("~"),Mainmodal.class).build();



        mainAdapter= new MainAdapter(options);
        mainAdapter.startListening();
        recyclerView.setAdapter(mainAdapter);



    }

}

 

 

Only Java Code:-

mainmodel

 

package com.niranjan.secondbook;

public class Mainmodal {
    String course,email,name,turl;

    public Mainmodal() {

    }

    public Mainmodal(String course, String email, String name, String turl) {
        this.course = course;
        this.email = email;
        this.name = name;
        this.turl = turl;

    }

    public String getCourse() {
        return course;
    }

    public void setCourse(String course) {
        this.course = course;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getName() {
        return name;
    }

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

    public String getTurl() {
        return turl;
    }

    public void setTurl(String turl) {
        this.turl = turl;
    }
}

 

Only Java Class:-

myadapter

 

package com.niranjan.secondbook;

import android.content.Intent;
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.recyclerview.widget.RecyclerView;

import com.bumptech.glide.Glide;
import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.firebase.ui.database.FirebaseRecyclerOptions;

public class MainAdapter extends FirebaseRecyclerAdapter<Mainmodal,MainAdapter.myViewholder> {
    /**
     * Initialize a {@link RecyclerView.Adapter} that listens to a Firebase query. See
     * {@link FirebaseRecyclerOptions} for configuration options.
     *
     * @param options
     */
    public MainAdapter(@NonNull FirebaseRecyclerOptions<Mainmodal> options) {
        super(options);
    }

    @Override
    protected void onBindViewHolder(@NonNull myViewholder holder, int position, @NonNull Mainmodal model) {
holder.name.setText(model.getName());
        holder.course.setText(model.getCourse());
        holder.email.setText(model.getEmail());
        Glide.with(holder.imageView.getContext())
                .load(model.getTurl())
                .placeholder(R.drawable.common_google_signin_btn_icon_dark)
                .error(R.drawable.common_google_signin_btn_icon_dark_normal)
                .into(holder.imageView);
    }

    @NonNull
    @Override
    public myViewholder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.mailitem,parent,false);

        return new myViewholder(view);
    }

    class myViewholder extends RecyclerView.ViewHolder{

        ImageView imageView;
        TextView name,course,email;

        public myViewholder(@NonNull View itemView) {
            super(itemView);
            imageView=itemView.findViewById(R.id.img1);
            name=itemView.findViewById(R.id.nametext);
            course=itemView.findViewById(R.id.coursetext);
            email=itemView.findViewById(R.id.emailtext);
            imageView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {



                }
            });
        }
    }

}