优化

lib/features/recording/model/model_clipboard.dart

@@ -0,0 +1,44 @@
+/// 剪切板内容数据模型
+class ClipboardRecordingModel {
+  final String title;
+  final int startTimestamp;
+  final int endTimestamp;
+  final String address;
+
+  ClipboardRecordingModel({
+    required this.title,
+    required this.startTimestamp,
+    required this.endTimestamp,
+    required this.address,
+  });
+
+  factory ClipboardRecordingModel.fromJson(Map<String, dynamic> json) {
+    return ClipboardRecordingModel(
+      title: _readString(json, 'title'),
+      startTimestamp: _readInt(json, 'startTimestamp'),
+      endTimestamp: _readInt(json, 'endTimestamp'),
+      address: _readString(json, 'address'),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'title': title,
+      'startTimestamp': startTimestamp,
+      'endTimestamp': endTimestamp,
+      'address': address,
+    };
+  }
+
+  static String _readString(Map<String, dynamic> json, String key) {
+    final value = json[key];
+    if (value is String) return value;
+    throw FormatException('Clipboard field "$key" must be a String.');
+  }
+
+  static int _readInt(Map<String, dynamic> json, String key) {
+    final value = json[key];
+    if (value is int) return value;
+    throw FormatException('Clipboard field "$key" must be an int.');
+  }
+}

lib/features/recording/model/model_recording.dart

@@ -0,0 +1,26 @@
+import 'package:recording_tool/features/recording/model/model_clipboard.dart';
+
+class RecordingModel {
+  /// 剪切板内容
+  final ClipboardRecordingModel clipboardRecordingModel;
+
+  RecordingModel({required this.clipboardRecordingModel});
+
+  factory RecordingModel.fromJson(Map<String, dynamic> json) {
+    return RecordingModel(
+      clipboardRecordingModel: ClipboardRecordingModel.fromJson(
+        json['clipboardRecordingModel'],
+      ),
+    );
+  }
+  Map<String, dynamic> toJson() {
+    return {'clipboardRecordingModel': clipboardRecordingModel.toJson()};
+  }
+
+  RecordingModel copyWith({ClipboardRecordingModel? clipboardRecordingModel}) {
+    return RecordingModel(
+      clipboardRecordingModel:
+          clipboardRecordingModel ?? this.clipboardRecordingModel,
+    );
+  }
+}