pdfViewController

//
//  PdfViewController.swift
//  Fitme
//
//  Created by paly on 9/9/19.
//  Copyright © 2019 Paly. All rights reserved.
//

import UIKit
import PDFKit

class PdfViewController: UIViewController {
    
    @IBOutlet var pdfView: PDFView!
    var pdfUrl: String!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        initUI()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationController?.setNavigationBarHidden(false , animated: false)
        let button = UIButton(type: .custom)
        self.navigationController?.navigationBar.barTintColor = UIColor.white
        button.setImage(UIImage(named: "ic_back_new"), for: .normal)
        button.addTarget(self, action: #selector(backButton(_:)), for: .touchUpInside)
        button.frame = CGRect.init(x: 0, y: 0, width: 30, height: 30)
        let barButton = UIBarButtonItem(customView: button)
        self.navigationItem.leftBarButtonItem = barButton
        self.navigationItem.title = "Detail"
        UINavigationBar.appearance().titleTextAttributes = [.foregroundColor : UIColor.darkGray]
        
        self.navigationController?.navigationBar.clipsToBounds = false
        self.navigationController?.navigationBar.shadowImage = UIColor(red: 215/255, green: 215/255, blue: 215/255, alpha: 1.0).image(CGSize(width: self.view.frame.width, height: 1))
    }
    
    @objc private func backButton(_ sender: UIBarButtonItem) {
        self.navigationController?.popViewController(animated: true)
        self.dismiss(animated: true, completion: nil)
    }
    
    func initUI(){
        
        let url = URL(string: self.pdfUrl)
        
        if let document = PDFDocument(url: url!) {
            pdfView.autoScales = true
            pdfView.displayMode = .singlePageContinuous
            pdfView.displayDirection = .vertical
            pdfView.document = document
        }
    }
}