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| import UIKit | |
| class ViewController: UIViewController { | |
| struct HelloWorld: Codable { | |
| let text: String | |
| } | |
| override func viewDidLoad() { | |
| super.viewDidLoad() | |
| let width = view.bounds.width | |
| let height = view.bounds.height | |
| let textFile = UIButton() | |
| textFile.frame.size = CGSize(width: 100, height: 100) | |
| textFile.center = CGPoint(x: width * 0.2, y: height * 0.3) | |
| textFile.backgroundColor = .lightGray | |
| textFile.addTarget(self, action: #selector(exportTextFile), for: .touchUpInside) | |
| textFile.setTitle("text.txt", for: .normal) | |
| view.addSubview(textFile) | |
| let jsonFile = UIButton() | |
| jsonFile.frame.size = CGSize(width: 100, height: 100) | |
| jsonFile.center = CGPoint(x: width * 0.5, y: height * 0.3) | |
| jsonFile.backgroundColor = .lightGray | |
| jsonFile.addTarget(self, action: #selector(exportJSONFile), for: .touchUpInside) | |
| jsonFile.setTitle("json.jon", for: .normal) | |
| view.addSubview(jsonFile) | |
| let pdfFile = UIButton() | |
| pdfFile.frame.size = CGSize(width: 100, height: 100) | |
| pdfFile.center = CGPoint(x: width * 0.8, y: height * 0.3) | |
| pdfFile.backgroundColor = .lightGray | |
| pdfFile.addTarget(self, action: #selector(exportPDFFile), for: .touchUpInside) | |
| pdfFile.setTitle("pdf.odf", for: .normal) | |
| view.addSubview(pdfFile) | |
| } | |
| @objc func exportTextFile() { | |
| let fileName = "text.txt" | |
| let message = "Hello World" | |
| let dir = FileManager.default.urls( for: .documentDirectory, in: .userDomainMask ).first! | |
| let filePath = dir.appendingPathComponent( fileName ) | |
| try! message.write( to: filePath, atomically: false, encoding: String.Encoding.utf8 ) | |
| sendFile(fileURL: filePath) | |
| } | |
| @objc func exportJSONFile() { | |
| let fileName = "json.json" | |
| let helloWorld = HelloWorld(text: "Hello World") | |
| let data = try! JSONEncoder().encode(helloWorld) | |
| let text = String(data: data, encoding: .utf8)! | |
| let dir = FileManager.default.urls( for: .documentDirectory, in: .userDomainMask ).first! | |
| let filePath = dir.appendingPathComponent( fileName ) | |
| try! text.write( to: filePath, atomically: false, encoding: String.Encoding.utf8 ) | |
| sendFile(fileURL: filePath) | |
| } | |
| @objc func exportPDFFile() { | |
| let fileName = "pdf.pdf" | |
| let pdfMetaData = [ | |
| kCGPDFContextCreator: "@takoikatakotako", | |
| kCGPDFContextAuthor: "swiswiswift.com" | |
| ] | |
| let format = UIGraphicsPDFRendererFormat() | |
| format.documentInfo = pdfMetaData as [String: Any] | |
| // A4 Aspect | |
| let pdfWidth: CGFloat = 2100 | |
| let pdfHeight: CGFloat = 2900 | |
| let pageRect = CGRect(x: 0, y: 0, width: pdfWidth, height: pdfHeight) | |
| let renderer = UIGraphicsPDFRenderer(bounds: pageRect, format: format) | |
| let data = renderer.pdfData { (context) in | |
| context.beginPage() | |
| // WriteText | |
| let text = "Hello World" | |
| let attributes = [ | |
| NSAttributedString.Key.font: UIFont.boldSystemFont(ofSize: 72) | |
| ] | |
| text.draw(at: CGPoint(x: 0, y: 0), withAttributes: attributes) | |
| } | |
| let dir = FileManager.default.urls( for: .documentDirectory, in: .userDomainMask ).first! | |
| let filePath = dir.appendingPathComponent( fileName ) | |
| try! data.write(to: filePath, options: .atomic) | |
| sendFile(fileURL: filePath) | |
| } | |
| func sendFile(fileURL: URL) { | |
| let activityViewController = UIActivityViewController(activityItems: [fileURL], applicationActivities: nil) | |
| present(activityViewController, animated: true, completion: nil) | |
| } | |
| } |