How to create pdf view di Android


Source link: https://github.com/Dmitry-Borodin/pdfview-android

Here how to create pdf view in Android.

pdfview

Build Status Download License Android Arsenal

Android PDF view - small and efficient PDF viewer embedded in your native app

It is based on ImageView and can handle big files with reasonable performance on low-end devices.

This is how fast scrolling of 680 page document looks like on low-end device:

Example1

Usage:

To show pdf you just need a file on the device.

findViewById<PDFView>(R.id.activityMainPdfView).fromAsset("paper.pdf").show() 

See sources for other methods to provide file.

Add to your project:

The library is hosted in jcenter, it is available by default on new android projects


  repositories {

<...>

jcenter()
  
}
 

Add gradle dependency:

implementation "com.pdfview:pdfview-android:1.0.0" 

Thanks to Manuel Lilienberg for initial implementation of this library and subsampling-scale library for influence.

Resources

It is a simple MVP demo which shows how to pick photos.

A custom TextView, when pinch in out gesture used, then it resizes text size.

This library analyses a best crop position and size by calculating some features (edge, skin tone, staturation and face).

The library provides an iOS-like over-scrolling effect for many Android native views. It also allows for very easy expansion to support custom views.

The core effect classes are loose-decorators of Android views, and are thus decoupled from the actual view classes' implementations. That allows developers to apply the effect over views while keeping them as untampered 'black-boxes'. Namely, it allows for keeping important optimizations such as view-recycling intact.

This library provides over scroll scale for ListView.

Gradle script that allows you to merge and embed dependencies in generted aar file.

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