feat:增加数据存储

lib/service/health_service.dart

@@ -0,0 +1,46 @@
+import 'package:fitnote/models/health.dart';
+import 'package:hive_flutter/hive_flutter.dart';
+
+class HealthService {
+  static const String boxName = 'healths';
+
+  Box<HealthRecord> get box => Hive.box<HealthRecord>(boxName);
+
+  Future<bool> addRecord(HealthRecord record) async {
+    try {
+      await box.add(record);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
+  List<HealthRecord> getAllRecords() {
+    return box.values.toList();
+  }
+
+  HealthRecord getAllRecordByDate(String date) {
+    return box.values.toList().firstWhere(
+      (item) => item.date == date,
+      orElse: () => HealthRecord.getEmpty(),
+    );
+  }
+
+  Future<bool> updateRecord(HealthRecord record) async {
+    try {
+      await record.save();
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
+  Future<bool> deleteRecord(HealthRecord record) async {
+    try {
+      await record.delete();
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+}