How to display pdf on iOS

Question

I want to know if there is any way for a offline build for xcode iOS such that we can display pdf file from local file.

The method I\'m using now is vi

Answer 1

we are iOS coders, no JS/Web programmer, so stay in swift and Apple APIs. The faster, cleaner, way is to use Quicklook.

I quote calimarkus.

Anyway code is very simple:

//  Copyright © 2019 ing.conti. All rights reserved.
//

import UIKit
import QuickLook


class ViewController: UIViewController, QLPreviewControllerDataSource {

    var previewController:QLPreviewController?

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        self.previewController = QLPreviewController()
        previewController!.dataSource = self
        present(previewController!, animated: true)

    }

    //QL delegate:

    func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
        return 1
    }


    func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {

        guard let url = Bundle.main.url(forResource: "SAMPLE", withExtension: "pdf") else {
            fatalError("Could not load pdf")
        }

        return url as QLPreviewItem 
    }
}