74 Open the PDF in UIWebView

Swift3.0 // // ViewController.swift // swiftdocs // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit class ViewController: UIViewController, UIWebViewDelegate { var myWebView: UIWebView! var myPDFurl: NSURL! var myRequest: NSURLRequest! var myIndiator: UIActivityIndicatorView! override func viewDidLoad() { super.viewDidLoad() // Buttonを生成. let myButton: UIButton = UIButton(frame: CGRect(x: 0, y: 0, width: 200, height: 50)) myButton.layer.cornerRadius = 20.0 myButton.layer.masksToBounds = true myButton.layer.position = CGPoint(x: self.view.frame.width/2, y: self.view.frame.height - 50) myButton.backgroundColor = UIColor.orange myButton.setTitle("Open PDF", for: UIControlState.normal) myButton.setTitleColor(UIColor.white, for: UIControlState.normal) myButton.addTarget(self, action: #selector(ViewController.onClickMyButton(sender:)), for: UIControlEvents.touchUpInside) self.view.addSubview(myButton) // PDFを開くためのWebViewを生成. myWebView = UIWebView(frame: CGRect(x: 0, y: 0, width: self.view.frame.width, height: self.view.frame.height)) myWebView.delegate = self myWebView.scalesPageToFit = true myWebView.layer.position = CGPoint(x: self.view.frame.width/2, y: self.view.frame.height/2) // URLReqestを生成. myPDFurl = NSURL(string: "https://developer.apple.com/jp/documentation/CocoaEncyclopedia.pdf")! myRequest = NSURLRequest(url: myPDFurl as URL) // ページ読み込み中に表示させるインジケータを生成. myIndiator = UIActivityIndicatorView(frame: CGRect(x: 0, y: 0, width: 50, height: 50)) myIndiator.center = self.view.center myIndiator.hidesWhenStopped = true myIndiator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.gray } /* インジケータのアニメーション開始. */ func startAnimation() { // NetworkActivityIndicatorを表示. UIApplication.shared.isNetworkActivityIndicatorVisible = true // UIACtivityIndicatorを表示. if !myIndiator.isAnimating { myIndiator.startAnimating() } // viewにインジケータを追加. self.view.addSubview(myIndiator) } /* インジケータのアニメーション終了. */ func stopAnimation() { // NetworkActivityIndicatorを非表示. UIApplication.shared.isNetworkActivityIndicatorVisible = false // UIACtivityIndicatorを非表示. if myIndiator.isAnimating { myIndiator.stopAnimating() } } /* Buttonが押された時に呼ばれるメソッド. */ func onClickMyButton(sender: UIButton) { // WebViewのLoad開始. myWebView.loadRequest(myRequest as URLRequest) // viewにWebViewを追加. self.view.addSubview(myWebView) } /* WebViewのloadが開始された時に呼ばれるメソッド. */ func webViewDidStartLoad(_ webView: UIWebView) { print("load started") startAnimation() } /* WebViewのloadが終了した時に呼ばれるメソッド. */ func webViewDidFinishLoad(_ webView: UIWebView) { print("load finished") stopAnimation() } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } } Swift 2.3 // // ViewController.swift // UIKit074 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit class ViewController: UIViewController, UIWebViewDelegate { var myWebView: UIWebView! var myPDFurl: NSURL! var myRequest: NSURLRequest! var myIndiator: UIActivityIndicatorView! override func viewDidLoad() { super.viewDidLoad() // Buttonを生成. let myButton: UIButton = UIButton(frame: CGRectMake(0, 0, 200, 50)) myButton.layer.cornerRadius = 20.0 myButton.layer.masksToBounds = true myButton.layer.position = CGPointMake(self.view.frame.width/2, self.view.frame.height - 50) myButton.backgroundColor = UIColor.orangeColor() myButton.setTitle("Open PDF", forState: UIControlState.Normal) myButton.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Normal) myButton.addTarget(self, action: #selector(ViewController.onClickMyButton(_:)), forControlEvents: UIControlEvents.TouchUpInside) self.view.addSubview(myButton) // PDFを開くためのWebViewを生成. myWebView = UIWebView(frame: CGRectMake(0, 0, self.view.frame.width, self.view.frame.height)) myWebView.delegate = self myWebView.scalesPageToFit = true myWebView.layer.position = CGPointMake(self.view.frame.width/2, self.view.frame.height/2) // URLReqestを生成. myPDFurl = NSURL(string: "https://developer.apple.com/jp/documentation/CocoaEncyclopedia.pdf")! myRequest = NSURLRequest(URL: myPDFurl) // ページ読み込み中に表示させるインジケータを生成. myIndiator = UIActivityIndicatorView(frame: CGRectMake(0, 0, 50, 50)) myIndiator.center = self.view.center myIndiator.hidesWhenStopped = true myIndiator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray } /* インジケータのアニメーション開始. */ func startAnimation() { // NetworkActivityIndicatorを表示. UIApplication.sharedApplication().networkActivityIndicatorVisible = true // UIACtivityIndicatorを表示. if !myIndiator.isAnimating() { myIndiator.startAnimating() } // viewにインジケータを追加. self.view.addSubview(myIndiator) } /* インジケータのアニメーション終了. */ func stopAnimation() { // NetworkActivityIndicatorを非表示. UIApplication.sharedApplication().networkActivityIndicatorVisible = false // UIACtivityIndicatorを非表示. if myIndiator.isAnimating() { myIndiator.stopAnimating() } } /* Buttonが押された時に呼ばれるメソッド. */ func onClickMyButton(sender: UIButton) { // WebViewのLoad開始. myWebView.loadRequest(myRequest) // viewにWebViewを追加. self.view.addSubview(myWebView) } /* WebViewのloadが開始された時に呼ばれるメソッド. */ func webViewDidStartLoad(webView: UIWebView) { print("load started") startAnimation() } /* WebViewのloadが終了した時に呼ばれるメソッド. */ func webViewDidFinishLoad(webView: UIWebView) { print("load finished") stopAnimation() } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } } 2.3と3.0の差分 #selector(ViewController.onClickMyButton(_:)) から #selector(ViewController.onClickMyButton(sender:)) に変更