feat:增加回到顶部功能

lib/models/moment.dart

@@ -51,3 +51,24 @@ class Moment {
 
   Map<String, dynamic> toJson() => _$MomentToJson(this);
 }
+
+@JsonSerializable()
+class PageMoment {
+  final List<Moment> records;
+  final int total;
+  final int size;
+  final int current;
+  final int pages;
+
+  PageMoment({
+    required this.records,
+    required this.total,
+    required this.size,
+    required this.current,
+    required this.pages,
+  });
+
+  factory PageMoment.fromJson(Map<String, dynamic> json) => _$PageMomentFromJson(json);
+
+  Map<String, dynamic> toJson() => _$PageMomentToJson(this);
+}

lib/models/moment.g.dart

@@ -52,3 +52,23 @@ Map<String, dynamic> _$MomentToJson(Moment instance) => <String, dynamic>{
   'likeList': instance.likeList,
   'commentList': instance.commentList,
 };
+
+PageMoment _$PageMomentFromJson(Map<String, dynamic> json) => PageMoment(
+  records:
+      (json['records'] as List<dynamic>)
+          .map((e) => Moment.fromJson(e as Map<String, dynamic>))
+          .toList(),
+  total: (json['total'] as num).toInt(),
+  size: (json['size'] as num).toInt(),
+  current: (json['current'] as num).toInt(),
+  pages: (json['pages'] as num).toInt(),
+);
+
+Map<String, dynamic> _$PageMomentToJson(PageMoment instance) =>
+    <String, dynamic>{
+      'records': instance.records,
+      'total': instance.total,
+      'size': instance.size,
+      'current': instance.current,
+      'pages': instance.pages,
+    };