How to create batch writes in Android Firestore Database

In this android programming source code example, we are going to create batch (transaction) storage in Android Firestore Database.

You can copy and adopt this source code example to your android project without reinventing the wheel.

Below is a step by step source code to create batch (transaction) storage in Android Firestore Database.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="15dp"
    android:background="#CACACA">

    <com.google.android.material.textfield.TextInputLayout
        android:id="@+id/titleinput"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="90dp">
        <com.google.android.material.textfield.TextInputEditText
            android:id="@+id/title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/title"
            android:inputType="textNoSuggestions"
            android:maxLines="1"
            android:singleLine="true" />
    </com.google.android.material.textfield.TextInputLayout>

    <com.google.android.material.textfield.TextInputLayout
        android:id="@+id/bodyinput"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/titleinput">
        <com.google.android.material.textfield.TextInputEditText
            android:id="@+id/body"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/body"
            android:inputType="textNoSuggestions"
            android:maxLines="1"
            android:singleLine="true" />
    </com.google.android.material.textfield.TextInputLayout>


    <Button
        android:id="@+id/submit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorAccent"
        android:layout_below="@id/bodyinput"
        android:textColor="#ffffff"
        android:text="Submit"/>

</RelativeLayout>

MainActivity.java

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.material.textfield.TextInputEditText;
import com.google.firebase.firestore.CollectionReference;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.firestore.WriteBatch;

import java.util.HashMap;
import java.util.Map;

public class FirestoreActivity20 extends AppCompatActivity {
    private TextInputEditText title;
    private TextInputEditText body;
    private FirebaseFirestore mDatabase;
    private Button submit;
    private CollectionReference collectionReference;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_firestore20);
        title = (TextInputEditText)findViewById(R.id.title);
        body = (TextInputEditText)findViewById(R.id.body);
        submit = (Button)findViewById(R.id.submit);
        mDatabase = FirebaseFirestore.getInstance();
        collectionReference = mDatabase.collection("AndroidView");

        submit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String enteredtitle = title.getText().toString();
                String enteredbody = body.getText().toString();
                saveDocument(enteredtitle, enteredbody);
            }
        });
    }

    private void saveDocument(String strTitle, String strBody){
        Map<String, Object> post = new HashMap<>();
        post.put("title", strTitle);
        post.put("body", strBody);
        WriteBatch batch = mDatabase.batch();
        DocumentReference documentReference1 = collectionReference.document("Note1");
        batch.set(documentReference1, post);

        DocumentReference documentReference2 = collectionReference.document("Note2");
        batch.set(documentReference2, post);

        DocumentReference documentReference3 = collectionReference.document("Note3");
        batch.set(documentReference3, post);

        batch.commit().addOnSuccessListener(new OnSuccessListener<Void>() {
            @Override
            public void onSuccess(Void aVoid) {
                Toast.makeText(FirestoreActivity20.this,"Document Inserted",Toast.LENGTH_LONG).show();
            }
        })
                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        Toast.makeText(FirestoreActivity20.this,e.getMessage(),Toast.LENGTH_LONG).show();
                        Log.d("Androidview", e.getMessage());
                    }
                });


    }
}

app/build.gradle

implementation 'com.google.firebase:firebase-core:16.0.9'
implementation 'com.google.firebase:firebase-firestore:19.0.0'

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