add iOS support

ios/Runner/AppDelegate.swift

@@ -1,5 +1,6 @@
 import UIKit
 import Flutter
+import UniformTypeIdentifiers
 
 @UIApplicationMain
 @objc class AppDelegate: FlutterAppDelegate {
@@ -15,9 +16,18 @@ import Flutter
             [weak self] (call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
             // This method is invoked on the UI thread.
             if call.method == "dirAccess" {
-                self.dirAccess(result: result)
+                self!.dirAccess(result: result)
+            } else if call.method == "fileAccess" {
+                guard let args = call.arguments as? [String : Any] else {return}
+                let startPath = args["startPath"] as! String
+
+                self!.fileAccess(startPath: startPath, result: result)
             } else if call.method == "renameFile" {
-                self.renameFile(result: result)
+                guard let args = call.arguments as? [String : Any] else {return}
+                let oldPath = args["oldPath"] as! String
+                let newPath = args["newPath"] as! String
+
+                self!.renameFile(oldPath: oldPath, newPath: newPath, result: result)
             } else {
                 result(FlutterMethodNotImplemented)
             }
@@ -26,21 +36,64 @@ import Flutter
         return super.application(application, didFinishLaunchingWithOptions: launchOptions)
     }
 
+    var currentFR: FlutterResult?
+
     private func dirAccess(result: @escaping FlutterResult) {
-        let documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: [.folder])
+        let folderPicker = UIDocumentPickerViewController(forOpeningContentTypes: [.folder], asCopy: false)
+        folderPicker.delegate = self
+        self.currentFR = result
+        window?.rootViewController?.present(folderPicker, animated: true, completion: nil)
+    }
+
+    private func fileAccess(startPath: String, result: @escaping FlutterResult) {
+        let startUrl = URL(fileURLWithPath: startPath)
+        let documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: [UTType.item], asCopy: false)
         documentPicker.delegate = self
+        documentPicker.allowsMultipleSelection = true
+        documentPicker.directoryURL = startUrl
+        self.currentFR = result
         window?.rootViewController?.present(documentPicker, animated: true, completion: nil)
     }
 
-    private func renameFile(result: @escaping FlutterResult) {
-        return
+    private func renameFile(oldPath: String, newPath: String, result: FlutterResult) {
+        let oldUrl = URL(fileURLWithPath: oldPath)
+        let dirUrl = oldUrl.deletingLastPathComponent()
+        let newUrl = URL(fileURLWithPath: newPath)
+
+        do {
+            let access = oldUrl.startAccessingSecurityScopedResource()
+            let folderAccess = dirUrl.startAccessingSecurityScopedResource()
+            try FileManager.default.moveItem(at: oldUrl, to: newUrl)
+            dirUrl.stopAccessingSecurityScopedResource()
+            oldUrl.stopAccessingSecurityScopedResource()
+            result(NSNumber(value: true))
+            return
+        } catch let error as NSError {
+            result(FlutterError(code: error.description, message: error.localizedDescription, details: nil))
+        } catch let error {
+            result(FlutterError(code: error.localizedDescription, message: error.localizedDescription, details: nil))
+        }
+
+        result(NSNumber(value: false))
+        dirUrl.stopAccessingSecurityScopedResource()
+        oldUrl.stopAccessingSecurityScopedResource()
     }
 }
 
 extension AppDelegate: UIDocumentPickerDelegate {
     func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
-        if let url = urls.first {
-            // result(url.path)
+        guard urls.first != nil && self.currentFR != nil else {
+            return
         }
+
+        self.currentFR!(urls.map { $0.path })
+    }
+
+    func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
+        guard self.currentFR != nil else {
+            return
+        }
+
+        self.currentFR!(nil)
     }
 }

ios/Runner/Info.plist

@@ -52,20 +52,10 @@
        <string>remote-notification</string>
     </array>
 
-    <key>NSAppleMusicUsageDescription</key>
-    <string>Explain why your app uses music</string>
-
     <key>UISupportsDocumentBrowser</key>
     <true/>
 
     <key>LSSupportsOpeningDocumentsInPlace</key>
     <true/>
-
-    <key>NSPhotoLibraryUsageDescription</key>
-    <string>Explain why your app uses photo library</string>
-
-    <key>NSDocumentsFolderUsageDescription</key>
-    <string>Explain why your app uses</string>
-
 </dict>
 </plist>

lib/pages/files_page.dart

@@ -8,6 +8,7 @@ import 'package:flutter/material.dart';
 import '../entity/theme_extension.dart';
 import '../l10n/l10n.dart';
 import '../pages/android_file_picker_page.dart';
+import '../tools/ios_platform.dart';
 import '../tools/responsive.dart';
 import '../entity/constants.dart';
 import '../tools/ex_file.dart';
@@ -39,7 +40,7 @@ class FilesPageState extends State<FilesPage> {
   String _filter = '';
 
   Future<void> addFileFromPicker() async {
-    late List<FileSystemEntity> entities;
+    late Iterable<FileSystemEntity> entities;
     if (Platform.isAndroid) {
       final result = await Navigator.push(
         context,
@@ -52,20 +53,29 @@ class FilesPageState extends State<FilesPage> {
         return;
       }
     } else if (Platform.isIOS) {
+      final dirs = await PlatformFilePicker.dirAccess();
+      if (dirs == null || dirs.first == null) {
+        return;
+      }
+
+      final files = await PlatformFilePicker.fileAccess(dirs.first.toString());
+      if (files == null) {
+        return;
+      }
 
+      entities = files.skipWhile((e) => e == null).map((e) => e.toString()).map((e) => e.toFileSystemEntity());
     } else {
       FilePickerResult? result = await FilePicker.platform.pickFiles(allowMultiple: true);
       if (result != null) {
         entities = result.files
             .where((e1) => e1.path != null && _files.every((e2) => e1.path != e2.path))
-            .map((e) => e.toFileSystemEntity())
-            .toList();
+            .map((e) => e.toFileSystemEntity());
       } else {
         return;
       }
     }
     setState(() {
-      _files.addAll(entities);
+      _files.addAll(entities.skipWhile((eNew) => _files.any((eOld) => eNew.path == eOld.path)));
     });
   }
 

lib/tools/ex_file.dart

@@ -85,6 +85,10 @@ extension ExLink on Link {
   FileSystemEntity toFileSystemEntity() => _toFileSystemEntity(this, (link) => link.targetSync());
 }
 
+extension ExPathString on String {
+  FileSystemEntity toFileSystemEntity() => _toFileSystemEntity(this, (str) => str);
+}
+
 FileSystemEntity _toFileSystemEntity<T>(T file, String Function(T file) func) {
   FileSystemEntity entity;
 

lib/tools/ios_platform.dart

@@ -1,21 +1,44 @@
 import 'package:flutter/services.dart';
 
 class PlatformFilePicker {
-  static const MethodChannel _channel = MethodChannel('net.sunjiao.renamer/picker');
+  static const MethodChannel _channel =
+      MethodChannel('net.sunjiao.renamer/picker');
 
-  static Future<void> dirAccess() async {
+  static Future<List<Object?>?> dirAccess() async {
     try {
-      await _channel.invokeMethod('dirAccess');
+      return await _channel.invokeMethod('dirAccess');
     } on PlatformException catch (e) {
       // show error message
+      rethrow;
     }
   }
 
-  static Future<void> renameFile() async {
+  static Future<List<Object?>?> fileAccess(String startPath) async {
     try {
-      await _channel.invokeMethod('renameFile');
+      return await _channel.invokeMethod(
+        'fileAccess',
+        {
+          'startPath': startPath,
+        },
+      );
     } on PlatformException catch (e) {
       // show error message
+      rethrow;
+    }
+  }
+
+  static Future<bool> renameFile(String oldPath, String newPath) async {
+    try {
+      return await _channel.invokeMethod(
+        'renameFile',
+        {
+          'oldPath': oldPath,
+          'newPath': newPath,
+        },
+      );
+    } on PlatformException catch (e) {
+      // show error message
+      rethrow;
     }
   }
 }

lib/tools/rename.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:renamer/tools/ios_platform.dart';
 
 import '../l10n/l10n.dart';
 import '../tools/ex_file.dart';
@@ -22,6 +23,14 @@ Future<FileSystemEntity?> rename(
 
   try {
     file.newName = replaceSpecialCharacters(file.newName);
+    if (Platform.isIOS) {
+      final success = await PlatformFilePicker.renameFile(file.path, file.newPath);
+
+      if (success) {
+        return file.newPath.toFileSystemEntity();
+      }
+    }
+
     return await file.rename(file.newPath);
   } catch (e, s) {
     debugPrint(e.toString());