120 lines
4.3 KiB
Swift
120 lines
4.3 KiB
Swift
// Basis of this code comes from https://github.com/lubritto/flutter_share
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import Flutter
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import UIKit
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public class Share {
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public static func share(call: FlutterMethodCall, result: @escaping FlutterResult) {
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let args = call.arguments as? [String: Any?]
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let title = args!["title"] as? String
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let text = args!["text"] as? String
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let filename = args!["filename"] as? String
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let tmpDirURL = FileManager.default.temporaryDirectory
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if (filename == nil || filename!.isEmpty) {
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return result(false)
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}
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let tmpFile = tmpDirURL.appendingPathComponent(filename!)
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do {
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try text?.write(to: tmpFile, atomically: true, encoding: .utf8)
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} catch {
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//TODO: return error
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return result(false)
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}
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pop(title: title, file: tmpFile) { pass in
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let fm = FileManager()
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do {
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try fm.removeItem(at: tmpFile)
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} catch {}
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return result(pass)
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}
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}
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public static func shareFile(call: FlutterMethodCall, result: @escaping FlutterResult) {
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let args = call.arguments as? [String: Any?]
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let title = args!["title"] as? String
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let filePath = args!["filePath"] as? String
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let filename = args!["filename"] as? String
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if (filePath == nil || filePath!.isEmpty) {
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return result(false)
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}
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var tmpFile: URL?
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let fm = FileManager()
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var realPath = URL(fileURLWithPath: filePath!)
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if (filename != nil && !filename!.isEmpty) {
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tmpFile = FileManager.default.temporaryDirectory.appendingPathComponent(filename!)
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do {
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try fm.linkItem(at: URL(fileURLWithPath: filePath!), to: tmpFile!)
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} catch {
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//TODO: return error
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return result(false)
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}
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realPath = tmpFile!
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}
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pop(title: title, file: realPath) { pass in
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if (tmpFile != nil) {
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do {
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try fm.removeItem(at: tmpFile!)
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} catch {}
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}
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result(pass)
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}
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}
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private static func pop(title: String?, file: URL, completion: @escaping ((Bool) -> Void)) {
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if (title == nil || title!.isEmpty) {
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return completion(false)
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}
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let activityViewController = UIActivityViewController(activityItems: [file], applicationActivities: nil)
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activityViewController.completionWithItemsHandler = {(activityType: UIActivity.ActivityType?, completed: Bool, returnedItems: [Any]?, error: Error?) in
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completion(true)
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}
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// Subject
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activityViewController.setValue(title, forKeyPath: "subject")
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// For iPads, fix issue where Exception is thrown by using a popup instead
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if UIDevice.current.userInterfaceIdiom == .pad {
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activityViewController.popoverPresentationController?.sourceView = UIApplication.topViewController()?.view
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if let view = UIApplication.topViewController()?.view {
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activityViewController.popoverPresentationController?.permittedArrowDirections = []
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activityViewController.popoverPresentationController?.sourceRect = CGRect(x: view.bounds.midX, y: view.bounds.midY, width: 0, height: 0)
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}
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}
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DispatchQueue.main.async {
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UIApplication.topViewController()?.present(activityViewController, animated: true)
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}
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}
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}
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extension UIApplication {
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class func topViewController(controller: UIViewController? = UIApplication.shared.keyWindow?.rootViewController) -> UIViewController? {
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if let navigationController = controller as? UINavigationController {
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return topViewController(controller: navigationController.visibleViewController)
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}
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if let tabController = controller as? UITabBarController {
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if let selected = tabController.selectedViewController {
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return topViewController(controller: selected)
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}
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}
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if let presented = controller?.presentedViewController {
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return topViewController(controller: presented)
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}
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return controller
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}
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}
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