From f5c2fc4813c3f37b3cf86a3daed0716d99766154 Mon Sep 17 00:00:00 2001
From: Maurice Parker <mo@vincode.io>
Date: Tue, 21 Jan 2020 12:58:05 -0700
Subject: [PATCH] Pass all UTI types associated with OPML to the document
 picker for OPML imports.  Issue #1684

---
 iOS/Settings/SettingsViewController.swift | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/iOS/Settings/SettingsViewController.swift b/iOS/Settings/SettingsViewController.swift
index f9c5fe8f0..38afd5646 100644
--- a/iOS/Settings/SettingsViewController.swift
+++ b/iOS/Settings/SettingsViewController.swift
@@ -8,6 +8,7 @@
 
 import UIKit
 import Account
+import CoreServices
 import SafariServices
 
 class SettingsViewController: UITableViewController {
@@ -383,7 +384,17 @@ private extension SettingsViewController {
 	}
 	
 	func importOPMLDocumentPicker() {
-		let docPicker = UIDocumentPickerViewController(documentTypes: ["public.text"], in: .import)
+		
+		let utiArray = UTTypeCreateAllIdentifiersForTag(kUTTagClassFilenameExtension, "opml" as NSString, nil)?.takeRetainedValue() as? [String] ?? [String]()
+
+		var opmlUTIs = utiArray
+			.compactMap({ UTTypeCopyDeclaration($0 as NSString)?.takeUnretainedValue() as? [String: Any] })
+			.reduce([String]()) { (result, dict) in
+				return result + dict.values.compactMap({ $0 as? String })
+			}
+		opmlUTIs.append("public.xml")
+		
+		let docPicker = UIDocumentPickerViewController(documentTypes: opmlUTIs, in: .import)
 		docPicker.delegate = self
 		docPicker.modalPresentationStyle = .formSheet
 		self.present(docPicker, animated: true)