Refactoring

lib/services/content_provider.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 
 import 'package:flutter/services.dart';
+import 'package:resume/constants.dart';
 
 class ContentProvider {
   ContentProvider._();
@@ -17,11 +18,25 @@ class ContentProvider {
     return true;
   }
 
-  static Map<String, dynamic> _content = {};
+  static Map<String, dynamic> _content = {
+    'experience': <List<dynamic>>[],
+    'education': <List<dynamic>>[],
+    'skills': <List<dynamic>>[],
+    'text': <String>[],
+  };
 
-  static List<dynamic> get experience => _content['experience'];
-
-  static List<dynamic> get education => _content['education'];
-
-  static List<dynamic> get skills => _content['skills'];
+  static T getContent<T>(ContentType contentType) {
+    switch (contentType) {
+      case ContentType.experience:
+        return _content['experience'] as T;
+      case ContentType.education:
+        return _content['education'] as T;
+      case ContentType.skills:
+        return _content['skills'] as T;
+      case ContentType.text:
+        return _content['text'] as T;
+      default:
+        return [] as T;
+    }
+  }
 }

lib/services/tools.dart

@@ -0,0 +1,12 @@
+import 'package:resume/constants.dart' show months;
+
+class Tools {
+  /// builds timespan-String out of two date-Strings.
+  /// Date has to be formatted as yyyy-MM
+  static buildTimeString(String startDate, String endDate) {
+    if (startDate.isEmpty || endDate.isEmpty) return '';
+    final firstDate = DateTime.parse('$startDate-01');
+    final secondDate = DateTime.parse('$endDate-01');
+    return '${months[firstDate.month - 1]} ${firstDate.year} - ${months[secondDate.month - 1]} ${secondDate.year}';
+  }
+}