How to print RecyclerView content in a PDF file from your Android App? – Android 13 | API 33

In this video it shows steps to print the content of the recycler view content (images) in a PDF file page.

In this the Android App is developed in Android studio for Android 13 API 33 version.

It re-uses the recycler view part of code from my previously published video. The code is also available in the below link:
https://programmerworld.co/android/how-to-show-images-in-recycler-view-in-your-android-app/

I hope you like this video. For any questions, suggestions or appreciation please contact us at: https://programmerworld.co/contact/ or email at: programmerworld1990@gmail.com

Complete source code and other details:

package com.programmerworld.printrecyclerview;

import static android.Manifest.permission.READ_MEDIA_IMAGES;
import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.pdf.PdfDocument;
import android.os.Bundle;
import android.os.storage.StorageManager;
import android.os.storage.StorageVolume;
import android.view.View;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private RecyclerView.LayoutManager layoutManagerRecyclerView;
    private RecyclerViewCustomAdapter recyclerViewCustomAdapter;
    private File filePDFOutput;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ActivityCompat.requestPermissions(this,
                new String[]{READ_MEDIA_IMAGES, WRITE_EXTERNAL_STORAGE},
                PackageManager.PERMISSION_GRANTED);

        recyclerView = findViewById(R.id.recyclerView);
        // Liner Layout
//        layoutManagerRecyclerView = new LinearLayoutManager(MainActivity.this);
        // GRID Layout
        layoutManagerRecyclerView = new GridLayoutManager(MainActivity.this, 2);

        recyclerView.setLayoutManager(layoutManagerRecyclerView);

        StorageManager storageManager = (StorageManager) getSystemService(STORAGE_SERVICE);
        StorageVolume storageVolume = storageManager.getStorageVolumes().get(0); // internal memory/ storage

        File fileImage = new File(storageVolume.getDirectory().getPath() + "/Download/images.jpeg");
        File fileImage1 = new File(storageVolume.getDirectory().getPath() + "/Download/images1.jpeg");

        Bitmap bitmap = BitmapFactory.decodeFile(fileImage.getPath());
        Bitmap bitmap1 = BitmapFactory.decodeFile(fileImage1.getPath());

        Bitmap[] bitmaps = {bitmap, bitmap1};
        recyclerViewCustomAdapter = new RecyclerViewCustomAdapter(bitmaps);
        recyclerView.setAdapter(recyclerViewCustomAdapter);

        filePDFOutput = new File(storageVolume.getDirectory().getPath() + "/Download/Output.pdf");
    }

    public void buttonPrint(View view) throws IOException {
        PdfDocument pdfDocument = new PdfDocument();
        PdfDocument.PageInfo pageInfo = new PdfDocument.PageInfo.Builder(recyclerView.getWidth(),
                recyclerView.getHeight(),
                1).create();

        PdfDocument.Page page = pdfDocument.startPage(pageInfo);
        recyclerView.draw(page.getCanvas());
        pdfDocument.finishPage(page);
        pdfDocument.writeTo(new FileOutputStream(filePDFOutput));
        pdfDocument.close();
    }
}

package com.programmerworld.printrecyclerview;

import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

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

public class RecyclerViewCustomAdapter extends RecyclerView.Adapter<RecyclerViewCustomAdapter.ViewHolder> {
    private Bitmap[] bitmapsLocal;
    public RecyclerViewCustomAdapter(Bitmap[] bitmaps) {
        bitmapsLocal = bitmaps;
    }
    public static class ViewHolder extends  RecyclerView.ViewHolder{
        private final ImageView imageView;
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            imageView = itemView.findViewById(R.id.imageView);
        }
        public ImageView getImageView(){
            return imageView;
        }
    }

    @NonNull
    @Override
    public RecyclerViewCustomAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.images_row_items,
                        parent,
                        false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull RecyclerViewCustomAdapter.ViewHolder holder, int position) {
        holder.getImageView().setImageBitmap(bitmapsLocal[position]);
    }

    @Override
    public int getItemCount() {
        return bitmapsLocal.length;
    }
}

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

    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/Theme.PrintRecyclerView"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="160dp"
        android:layout_marginTop="52dp"
        android:onClick="buttonPrint"
        android:text="Print"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="336dp"
        android:layout_height="534dp"
        android:layout_marginStart="37dp"
        android:layout_marginTop="53dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button" />
</androidx.constraintlayout.widget.ConstraintLayout>

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

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:srcCompat="@drawable/ic_launcher_background" />
</FrameLayout>