Create PDF and Read PDF android

Hello friends,
Today we are learn about how to create PDF and read PDF file.



actvity_main.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"
    tools:context=".actvities.MainActivity">
    <include
        android:id="@+id/tool0"
        layout="@layout/toolbar" />
    <LinearLayout
        android:layout_below="@+id/tool0"
        android:id="@+id/options_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="20dp" >

   
        <android.support.v7.widget.AppCompatButton
            android:background="@drawable/rounded_shape1"
            android:id="@+id/btn_create_"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:text="Create New Pdf" />
    </LinearLayout>
    <LinearLayout
        android:layout_below="@+id/options_layout"
        android:id="@+id/pdf_selection_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:padding="20dp"
        android:visibility="visible" >

        <ListView
            android:id="@+id/pdfList"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >
        </ListView>
    </LinearLayout>

</RelativeLayout>

ActvityMain.java

package com.samset.create_pdf_sample.actvities;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Environment;
import android.os.ParcelFileDescriptor;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.AppCompatButton;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import com.samset.create_pdf_sample.R;

import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    private AppCompatButton btn_write;
    private Toolbar toolbar;
    // File Descriptor for rendered Pdf file
    private ParcelFileDescriptor mFileDescriptor;
    private File[] filelist;
    private ArrayAdapter<String> adapter;
    ListView listView;
    String fileName;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        toolbar=(Toolbar)findViewById(R.id.tool0);
        toolbar.setTitle(R.string.app_name);
   
        btn_write=(AppCompatButton)findViewById(R.id.btn_create_);
        listView =(ListView)findViewById(R.id.pdfList);

     
        btn_write.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this,CreatePdfActivity.class));
            }
        });
        new PdfListLoadTask().execute();

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


                fileName = adapter.getItem(position);
                startActivity(new Intent(MainActivity.this,ShowPdfActivity.class).putExtra("data", fileName));

            }
        });
    }

    private class PdfListLoadTask extends AsyncTask<Void, Void, Void> {

        @Override
        protected Void doInBackground(Void... params) {
            File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
            File files = new File(path+"");
            filelist = files.listFiles(new FilenameFilter() {
                public boolean accept(File dir, String name) {
                    return ((name.endsWith(".pdf")));
                }
            });

            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            // TODO Auto-generated method stub

            if (filelist != null && filelist.length >= 1) {
                ArrayList<String> fileNameList = new ArrayList<>();
                for (int i = 0; i < filelist.length; i++)
                    fileNameList.add(filelist[i].getPath());
                adapter = new ArrayAdapter<>(getApplicationContext(),
                        R.layout.list_item, fileNameList);
                listView.setAdapter(adapter);
            } else {
                Toast.makeText(getApplicationContext(),
                        "No pdf file found, Please create new Pdf file",
                        Toast.LENGTH_LONG).show();

            }
        }

    }
}

ShowPdfActvity.java

package com.samset.create_pdf_sample.actvities;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.pdf.PdfRenderer;
import android.os.ParcelFileDescriptor;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.AppCompatButton;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.widget.ImageView;

import com.samset.create_pdf_sample.R;
import com.samset.create_pdf_sample.listeners.CurrentView;

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

public class ShowPdfActivity extends AppCompatActivity {
    private Toolbar toolbar;
    private ParcelFileDescriptor mFileDescriptor;
    private PdfRenderer mPdfRenderer;
    private Intent intent;
    private String strinput;
    private ImageView pdfView;
    private static int currentView;

    private PdfRenderer.Page mCurrentPage;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_show_pdf);
        pdfView=(ImageView)findViewById(R.id.iv_pdfview);
        toolbar=(Toolbar)findViewById(R.id.tool);
        toolbar.setTitle(R.string.app_name);
        intent=getIntent();
        strinput=intent.getStringExtra("data");
        if (!strinput.isEmpty())
        {
            openRenderer(strinput);
            showPage(1);

            Log.v("Show"," data "+strinput);
        }else{
            Log.v("Show"," data null ");
        }

    }



    @SuppressLint("NewApi")
    private void openRenderer(String filePath) {
        File file = new File(filePath);
        try {
            mFileDescriptor = ParcelFileDescriptor.open(file,ParcelFileDescriptor.MODE_READ_ONLY);
            mPdfRenderer = new PdfRenderer(mFileDescriptor);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * API for cleanup of objects used in rendering
     */
    @SuppressLint("NewApi")
    private void closeRenderer() {

        try {
            if (mCurrentPage != null)
                mCurrentPage.close();
            if (mPdfRenderer != null)
                mPdfRenderer.close();
            if (mFileDescriptor != null)
                mFileDescriptor.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    @SuppressLint("NewApi")
    private void showPage(int index) {
        if (mPdfRenderer == null || mPdfRenderer.getPageCount() <= index
                || index < 0) {
            return;
        }
        // For closing the current page before opening another one.
        try {
            if (mCurrentPage != null) {
                mCurrentPage.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        // Open page with specified index
        mCurrentPage = mPdfRenderer.openPage(index);
        Bitmap bitmap = Bitmap.createBitmap(mCurrentPage.getWidth(),
                mCurrentPage.getHeight(), Bitmap.Config.ARGB_8888);

        // Pdf page is rendered on Bitmap
        mCurrentPage.render(bitmap, null, null,
                PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
        // Set rendered bitmap to ImageView
         pdfView.setImageBitmap(bitmap);

    }


}

activity_show_pdf.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"
    tools:context=".actvities.ShowPdfActivity">

    <include
        android:id="@+id/tool"
        layout="@layout/toolbar" />

    <LinearLayout
        android:id="@+id/read_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/tool"
        android:orientation="vertical"
        android:visibility="visible">

        <ImageView
            android:id="@+id/iv_pdfview"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1"
            android:background="@android:color/white"
            android:scaleType="fitCenter" />

    </LinearLayout>
</RelativeLayout>

Thank you

FullSourceCodePDFCreaterSample

Live Sample