add iOS support

README.md

@@ -7,6 +7,7 @@ todo:
 - ~~Convert, including case convert, Chinese simp/trad/pinyin convert, Latin/Cyrillic script transliteration~~.(Done.)
 - ~~Incremental renaming: for example, RenamerFile-1, RenamerFile-2, RenamerFile-3, RenamerFile-4, ...~~.(Done.)
 - Rules re-editing.
+- Implement iOS renamer with specific code and Platform channel, references: [Writing custom platform-specific code](https://docs.flutter.dev/platform-integration/platform-channels?tab=type-mappings-swift-tab#type-mappings-swift-tab), [Providing access to directories](https://developer.apple.com/documentation/uikit/view_controllers/providing_access_to_directories), [juanmartin/renamerApp-ios](https://github.com/juanmartin/renamerApp-ios)
 
 # Screenshots
 ## Desktop

ios/Runner.xcodeproj/project.pbxproj

@@ -97,7 +97,6 @@
 				A40B1E21F74A722135CAF778 /* Pods-RunnerTests.release.xcconfig */,
 				2581B69E8F1CCD428434EC5E /* Pods-RunnerTests.profile.xcconfig */,
 			);
-			name = Pods;
 			path = Pods;
 			sourceTree = "<group>";
 		};
@@ -475,7 +474,7 @@
 				INFOPLIST_FILE = Runner/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = Renamer;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
-				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -661,7 +660,7 @@
 				INFOPLIST_FILE = Runner/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = Renamer;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
-				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -687,7 +686,7 @@
 				INFOPLIST_FILE = Runner/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = Renamer;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
-				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

ios/Runner/AppDelegate.swift

@@ -3,11 +3,44 @@ import Flutter
 
 @UIApplicationMain
 @objc class AppDelegate: FlutterAppDelegate {
-  override func application(
-    _ application: UIApplication,
-    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
-  ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
-    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
-  }
+    override func application(
+        _ application: UIApplication,
+        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+    ) -> Bool {
+        GeneratedPluginRegistrant.register(with: self)
+        let controller: FlutterViewController = window?.rootViewController as! FlutterViewController
+        let filePickerChannel = FlutterMethodChannel(name: "net.sunjiao.renamer/picker",
+                                                     binaryMessenger: controller.binaryMessenger)
+        filePickerChannel.setMethodCallHandler({
+            [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)
+            } else if call.method == "renameFile" {
+                self.renameFile(result: result)
+            } else {
+                result(FlutterMethodNotImplemented)
+            }
+        })
+
+        return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+    }
+
+    private func dirAccess(result: @escaping FlutterResult) {
+        let documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: [.folder])
+        documentPicker.delegate = self
+        window?.rootViewController?.present(documentPicker, animated: true, completion: nil)
+    }
+
+    private func renameFile(result: @escaping FlutterResult) {
+        return
+    }
+}
+
+extension AppDelegate: UIDocumentPickerDelegate {
+    func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
+        if let url = urls.first {
+            // result(url.path)
+        }
+    }
 }

ios/Runner/Info.plist

@@ -64,5 +64,8 @@
     <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/main.dart

@@ -100,8 +100,6 @@ class AppPage extends StatelessWidget {
           return;
       }
     }
-
-
   }
 
   void _permissionRequest(BuildContext context) => showDialog(

lib/pages/files_page.dart

@@ -51,6 +51,8 @@ class FilesPageState extends State<FilesPage> {
       } else {
         return;
       }
+    } else if (Platform.isIOS) {
+
     } else {
       FilePickerResult? result = await FilePicker.platform.pickFiles(allowMultiple: true);
       if (result != null) {

lib/tools/ios_platform.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/services.dart';
+
+class PlatformFilePicker {
+  static const MethodChannel _channel = MethodChannel('net.sunjiao.renamer/picker');
+
+  static Future<void> dirAccess() async {
+    try {
+      await _channel.invokeMethod('dirAccess');
+    } on PlatformException catch (e) {
+      // show error message
+    }
+  }
+
+  static Future<void> renameFile() async {
+    try {
+      await _channel.invokeMethod('renameFile');
+    } on PlatformException catch (e) {
+      // show error message
+    }
+  }
+}