Android studio java pdf

How to Generate a PDF file in Android App?

There are many apps in which data from the app is provided to users in the downloadable PDF file format. So in this case we have to create a PDF file from the data present inside our app and represent that data properly inside our app. So by using this technique we can easily create a new PDF according to our requirement. In this article, we will take a look at creating a new PDF file from the data present inside your Android app and saving that PDF file in the external storage of the users’ device. So for generating a new PDF file from the data present inside our Android app we will be using Canvas. Canvas is a predefined class in Android which is used to make 2D drawings of the different object on our screen. So in this article, we will be using canvas to draw our data inside our canvas, and then we will store that canvas in the form of a PDF. Now we will move towards the implementation of our project.

Example of Generating a PDF File

Below is the sample GIF in which we will get to know what we are going to build in this article. Note that this application is built using Java language. In this project, we are going to display a simple button. After clicking the button our PDF file will be generated and we can see this PDF file saved in our files.

Step by Step Implementation

Step 1: Create a New Project

To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. Note that select Java as the programming language.

Step 2: Working with the activity_main.xml file

Go to the activity_main.xml file and refer to the following code. Below is the code for the activity_main.xml file.

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Android Tutorials

This tutorial is about:
✓Create PDF app.
✓Display Specific or all pages from PDF
✓Display PDF from Assets folder.
✓Add padding between pages
✓Passwords
✓Scroll PDF pages vertically or Swipe horizontally.

VIDEO

SOURCE CODE

Step 1: Create a new project OR Open your project

Step 2: Add following library in build.gradle(Module:app)

Step 3: Create Assets folder and place a pdf file in that folder.

Step 4: Code

apply plugin: 'com.android.application' android < compileSdkVersion 27 defaultConfig < applicationId "com.blogspot.atifsoftwares.pdfapp" minSdkVersion 16 targetSdkVersion 27 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" >buildTypes < release < minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' >> > dependencies < implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.android.support:appcompat-v7:27.1.1' implementation 'com.android.support.constraint:constraint-layout:1.1.0' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.1' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' //add library here implementation 'com.github.barteksc:android-pdf-viewer:3.0.0-beta.5' >

  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">  android:id="@+id/pdfView" android:layout_width="match_parent" android:layout_height="match_parent"/>  

package com.blogspot.devofandroid.pdfapp; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import com.github.barteksc.pdfviewer.PDFView; import com.github.barteksc.pdfviewer.util.FitPolicy; public class MainActivity extends AppCompatActivity  @Override protected void onCreate(Bundle savedInstanceState)  super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //PDF View PDFView pdfView = findViewById(R.id.pdfView); pdfView.fromAsset("pdfexample.pdf") .enableSwipe(true) // allows to block changing pages using swipe .swipeHorizontal(true) .enableDoubletap(true) .defaultPage(0) .enableAnnotationRendering(false) // render annotations (such as comments, colors or forms) .password(null) .scrollHandle(null) .enableAntialiasing(true) // improve rendering a little bit on low-res screens // spacing between pages in dp. To define spacing color, set view background .spacing(0) .pageFitPolicy(FitPolicy.WIDTH) .load(); > > 

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[PDF] Android App Development in Android Studio – Java+Android Edition for Beginners

Android App Development in Android Studio – Java+Android Edition for Beginners

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How to make a book app using PDF in android studio

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

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)

activity_main.xml

MainActivity.Java

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”

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

Introduction_menu:

xmlns:app=»http://schemas.android.com/apk/res-auto»>
android:id=»@+id/go_to_main_activity»
android:title=»go to main activity»
app:showAsAction=»always»
android:icon=»@drawable/home_main_activity»/>
android:icon=»@drawable/more_icon»
app:showAsAction=»always»> android:id=»@+id/introduction_chapter1″
android:title=»Chapter1″
app:showAsAction=»never»
android:icon=»@drawable/arrow»
android:contentDescription=»hello this is a content description»>

android:id=»@+id/introduction_chapter2″
android:title=»Chapter2″
app:showAsAction=»never»
android:icon=»@drawable/arrow»>

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.

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

Now go to android studio build.gradle (Module.app) and paste the dependency like that:

Then click on “Sync Now” and wait some time (internet connection need) After successfully sync you have all the libraries you need!

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