brand_list.dart 3.9 KB

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  1. import 'dart:async';
  2. import 'package:flutter/material.dart';
  3. import 'package:liftmanager/internal/bbs/model/brand_model_type.dart';
  4. import 'package:liftmanager/internal/means/means_router.dart';
  5. import 'package:liftmanager/internal/search/search_router.dart';
  6. import 'package:liftmanager/net/api_service.dart';
  7. import 'package:liftmanager/routers/fluro_navigator.dart';
  8. import 'package:liftmanager/widgets/app_search_bar.dart';
  9. import 'package:liftmanager/widgets/bbs_content.dart';
  10. import 'package:liftmanager/widgets/load_image.dart';
  11. class BrandList extends StatefulWidget {
  12. @override
  13. BrandListState createState() => BrandListState();
  14. }
  15. class BrandListState extends State<BrandList> {
  16. ScrollController _scrollController = new ScrollController();
  17. List<ListBrand> brandList = [];
  18. var _controller = ScrollController();
  19. static const cellHeight = 70.0;
  20. static const dividerHeight = 1.0;
  21. Map<String, double> positionAnchors = {};
  22. @override
  23. void initState() {
  24. super.initState();
  25. _fetchData(null);
  26. }
  27. @override
  28. void dispose() {
  29. _scrollController.dispose();
  30. super.dispose();
  31. }
  32. @override
  33. Widget build(BuildContext context) {
  34. return Scaffold(
  35. appBar: SearchAppBar(onPressed: () {
  36. NavigatorUtils.push(context, SearchRouter.searchBrand);
  37. }),
  38. body: Stack(alignment: Alignment.center, children: [
  39. ListView.separated(
  40. padding: EdgeInsets.symmetric(horizontal: 10),
  41. itemCount: brandList.length,
  42. separatorBuilder: (context, index) => Divider(
  43. height: dividerHeight,
  44. ),
  45. controller: _controller,
  46. itemBuilder: (_, index) {
  47. return GestureDetector(
  48. child: Container(
  49. height: cellHeight,
  50. // alignment: Alignment.centerLeft,
  51. child: Row(
  52. crossAxisAlignment: CrossAxisAlignment.center,
  53. children: [
  54. LoadNetworkImageAlt(
  55. brandList[index].logo,
  56. width: 46,
  57. height: 46,
  58. ),
  59. SizedBox(
  60. width: 10,
  61. ),
  62. Column(
  63. crossAxisAlignment: CrossAxisAlignment.start,
  64. mainAxisAlignment: MainAxisAlignment.center,
  65. children: [
  66. Text(
  67. brandList[index].name,
  68. style: TextStyle(
  69. color: Colors.black,
  70. fontSize: 15,
  71. ),
  72. ),
  73. Text(
  74. brandList[index].descr ?? '',
  75. style: TextStyle(
  76. color: Color(0xff999999),
  77. fontSize: 12,
  78. ),
  79. ),
  80. ],
  81. ),
  82. ],
  83. ),
  84. ),
  85. onTap: () {
  86. NavigatorUtils.push(context,
  87. "${MeansRouter.brandDetail}?id=${brandList[index].id.toString()}");
  88. },
  89. );
  90. },
  91. ),
  92. Positioned(
  93. right: 0,
  94. child: AlphabeticIndexBar(controller: _controller, positionAnchors: positionAnchors,),
  95. ),
  96. ]),
  97. );
  98. }
  99. Future _fetchData(String keywords) async {
  100. NewApiService().getBrandListType(
  101. keywords,
  102. onSuccess: (res) {
  103. double offset = 0;
  104. for (BrandModelType bm in res) {
  105. if (bm.name == '热门') {
  106. continue;
  107. }
  108. brandList.addAll(bm.listBrand);
  109. positionAnchors[bm.name] = offset;
  110. offset += (cellHeight + dividerHeight) * bm.listBrand.length;
  111. }
  112. setState(() {});
  113. },
  114. onError: (int code, String msg) {},
  115. );
  116. }
  117. }