55 lines
1.3 KiB
Dart
55 lines
1.3 KiB
Dart
/// 通用后端响应（对齐 Android R<T>）
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class BaseResponse<T> {
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final int code;
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final String? message;
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final T? data;
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const BaseResponse({required this.code, this.message, this.data});
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bool get isSuccess => code == 1;
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factory BaseResponse.fromJson(
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Map<String, dynamic> json,
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T Function(dynamic json) fromData,
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) {
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return BaseResponse(
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code: json['code'] as int? ?? -1,
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message: json['message'] as String?,
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data: json['data'] == null ? null : fromData(json['data']),
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);
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}
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}
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/// 分页结果
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class PageResult<T> {
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final List<T> items;
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final int total;
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final int page;
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final int size;
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const PageResult({
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required this.items,
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required this.total,
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required this.page,
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required this.size,
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});
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/// 列表别名（与 items 等价）
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List<T> get list => items;
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/// 是否有下一页
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bool get hasMore => items.length >= size && page * size < total;
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factory PageResult.fromJson(
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Map<String, dynamic> json,
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T Function(dynamic json) fromItem,
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) {
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final list = (json['items'] ?? json['list'] ?? json['data'] ?? []) as List;
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return PageResult<T>(
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items: list.map((e) => fromItem(e)).toList(),
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total: json['total'] as int? ?? 0,
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page: json['page'] as int? ?? 1,
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size: json['size'] as int? ?? 10,
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);
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}
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} |