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How to make a book app using PDF in android studio

 

BOOK APP ANDROID STUDIO (Java)

To make an android book app first you need to select your content format. You can make your content in those following ways:

  • Text view
  • PDF
  • HTML
  • Image view etc.
How to make a book app using PDF in android studio
But in this article, I am going to show you how you can make an android book app using PDF content! What you have to do is edit your document in MS Word or any word document editor you love and then you have to save it as a PDF file. Here I am going to give you all the code and documentation so that you can make it very easily.


At first, you have to create a new project and in the main activity, you need some buttons. You can also use a grid view or list view. But in this blog, I am going to use buttons. In the main activity java, you have to enable on click listener on those buttons. And you also need more activity to show the content. if you want to create an activity then you have to do this:
Right-click on values(android) > new > activity > Empty activity > give a name to the activity(example: Introduction)
how to create a new activity in android studio
Here the sample code:

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context=".MainActivity">
 <Button
        android:id="@+id/itroductionID"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#039BE5"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:padding="20dp"
        android:text="Introduction"
        android:textAllCaps="false" />
  <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#C0CA33"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:padding="20dp"
        android:text="C"
        android:textAllCaps="false" />
</LinearLayout>

MainActivity.Java

package com.bookapp;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    private Button introbutton,cbutton,csurpbutton;
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
introbutton=findViewById(R.id.itroductionID);
        introbutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
           Intent intent=new Intent(MainActivity.this,Introduction.class);
                startActivity(intent);
                Toast.makeText(MainActivity.this,"Introduction",Toast.LENGTH_SHORT).show();
            }
        });}}

Now you have to create a menu for Introduction Activity. So, to do that you have to follow the flowing steps:
1. Click on res then right-click on it>New>Android resource directory Make the type of the resource “menu” And then click “ok”

create a menu in android studio
create a menu in android studio

Now you can find a new folder name “menu” right-click on it >New>Menu resource file> give a name to the file (example: Introduction_menu)>ok

create a menu in android studio
 create a menu in android studio

Introduction_menu:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
 <item
 android:id="@+id/go_to_main_activity"
        android:title="go to main activity"
        app:showAsAction="always"
        android:icon="@drawable/home_main_activity" />
 <item android:title="ALL SITES"
        android:icon="@drawable/more_icon"
        app:showAsAction="always">
<menu>
            <item
                android:id="@+id/introduction_chapter1"
                android:title="Chapter1"
                app:showAsAction="never"
                android:icon="@drawable/arrow"
                android:contentDescription="hello this is a content description">
</item>
            <item
                android:id="@+id/introduction_chapter2"
                android:title="Chapter2"
                app:showAsAction="never"
                android:icon="@drawable/arrow">
</item></menu></item>
</menu>

To store PDF files, we have to create an asset folder. How we can create that? Ok here we go:
Step1: right-click on app>new>folder>asset folder>keep it main (no change)>finish

Step2: right-click on the asset folder which you just create in step1>paste the pdf file>rename the file as your wish.
how to create asset folder in android studio
how to create asset folder in android studio
pdf folder android studio

Here I paste 2 PDF file which is “chapter1” and “chapter2”
Step3: Go to the following link: https://github.com/barteksc/AndroidPdfViewerV2 and from the library copy the dependency. When I am writing the article the dependency is 
compile 'com.github.barteksc:android-pdf-viewer:2.8.2' "
Now go to android studio build.gradle (Module.app) and paste the dependency like that:

dependency android studio

Then click on “Sync Now” and wait some time (internet connection need) After successfully sync you have all the libraries you need! 
Now go to the Github page again and copy this:

<com.github.barteksc.pdfviewer.PDFView
        android:id="@+id/pdfView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

Now come to the Introduction Activity and in the xml just paste this code:

activity_introduction.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".Introduction">
<com.github.barteksc.pdfviewer.PDFView
        android:id="@+id/pdfView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</RelativeLayout>

And then go to the java or Interoduction.java and paste this code:

Interoduction.java 

package com.bookapp;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Toast;
import com.github.barteksc.pdfviewer.PDFView;
public class Introduction extends AppCompatActivity {
PDFView chapter1,chapter2;
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_introduction);
//this is for default pdf. The first one you want to show!
        chapter1=(PDFView)findViewById(R.id.pdfView);
        chapter1.fromAsset("chapter1.pdf").load();
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater= getMenuInflater();
        menuInflater.inflate(R.menu.introduction_menu,menu);
        return super.onCreateOptionsMenu(menu);}
@Override
    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
        if(item.getItemId()==R.id.go_to_main_activity){
            Intent intent= new Intent(Introduction.this,MainActivity.class);
            startActivity(intent);
            Toast.makeText(Introduction.this,"This is Chapter1",Toast.LENGTH_SHORT).show(); }
        if(item.getItemId()==R.id.introduction_chapter1){
            chapter1=(PDFView)findViewById(R.id.pdfView);
            chapter1.fromAsset("chapter1.pdf").load();
Toast.makeText(Introduction.this,"This is Chapter1",Toast.LENGTH_SHORT).show();}
if(item.getItemId()==R.id.introduction_chapter2){
chapter2=(PDFView)findViewById(R.id.pdfView);
            chapter2.fromAsset("chapter2.pdf").load();
            Toast.makeText(Introduction.this,"This is Chapter2",Toast.LENGTH_SHORT).show(); }
return super.onOptionsItemSelected(item)}}

Explanation: When you select an item from the menu, the "if" statement will call the pdf file from the asset section. Then in Pdf View, it will show that particular pdf file.
Now run the app. Here I am sharing my results:

How to make a book app using PDF in android studio

This one just a demo project. Now you can make any book app that you want.
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