1 files changed, 28 insertions, 0 deletions
diff --git a/DomainDig/ExportPresenter.swift b/DomainDig/ExportPresenter.swift
new file mode 100644
index 0000000..82ec7ae
--- /dev/null
+++ b/DomainDig/ExportPresenter.swift
@@ -0,0 +1,28 @@
+import SwiftUI
+import UIKit
+
+enum ExportPresenter {
+    static func share(filename: String, contents: String) {
+        let url = FileManager.default.temporaryDirectory.appendingPathComponent(filename)
+
+        do {
+            try contents.write(to: url, atomically: true, encoding: .utf8)
+        } catch {
+            return
+        }
+
+        let activityController = UIActivityViewController(activityItems: [url], applicationActivities: nil)
+        guard let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
+              let rootViewController = windowScene.keyWindow?.rootViewController else {
+            return
+        }
+
+        var presenter = rootViewController
+        while let presentedViewController = presenter.presentedViewController {
+            presenter = presentedViewController
+        }
+
+        activityController.popoverPresentationController?.sourceView = presenter.view
+        presenter.present(activityController, animated: true)
+    }
+}