106 lines
2.9 KiB
Dart
106 lines
2.9 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:go_router/go_router.dart';
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import 'package:momo/models/image_list_resp.dart';
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import 'package:momo/models/image_resp.dart';
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import 'package:momo/provider/rerender.dart';
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import 'package:momo/request/http_client.dart';
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class Gallery extends ConsumerWidget {
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const Gallery({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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UniqueKey key = ref.watch(uniqueIdProvider);
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return Container(
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color: Colors.white,
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child: ImageGrid(
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key: key,
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),
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);
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}
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}
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class ImageGrid extends StatefulWidget {
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const ImageGrid({Key? key}) : super(key: key);
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@override
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State<ImageGrid> createState() => _ImageGridState();
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}
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class _ImageGridState extends State<ImageGrid> {
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late ScrollController _scrollController;
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List<ImageResp> imageList = [];
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int pageNum = 1;
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int pageSize = 10;
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bool hasMore = true;
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bool loading = false;
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Future<dynamic> loadImages() async {
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loading = true;
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if (!hasMore) {
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loading = false;
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return;
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}
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print(pageNum);
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var resp = await dio.get("/image/history",
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queryParameters: {"page": pageNum, "size": pageSize});
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ImageListResp imageListResp = ImageListResp.fromJson(resp.data);
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hasMore = imageListResp.hasNext;
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pageNum = pageNum + 1;
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if (mounted) {
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setState(() {
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imageList.addAll(imageListResp.list);
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});
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loading = false;
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}
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}
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@override
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void initState() {
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// TODO: implement initState
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super.initState();
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print("init");
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_scrollController = ScrollController(initialScrollOffset: 5.0)
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..addListener(() {
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if (_scrollController.offset >=
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_scrollController.position.maxScrollExtent &&
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!_scrollController.position.outOfRange) {
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print("到底了 controller $loading");
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if (!loading) {
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loadImages();
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}
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}
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});
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loadImages();
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}
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@override
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Widget build(BuildContext context) {
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return GridView.builder(
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itemCount: imageList.length,
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controller: _scrollController,
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gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: MediaQuery.of(context).size.width > 640 ? 5 : 3),
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itemBuilder: (BuildContext context, int index) {
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return InkWell(
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onTap: () {
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context.go(Uri(
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path: "/detail",
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queryParameters: {"id": "${imageList[index].id}"})
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.toString());
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},
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child: Image.network(
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"${dio.options.baseUrl}/image/thumbnail/${imageList[index].file_path}",
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fit: BoxFit.cover,
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errorBuilder: (BuildContext context, o, err) {
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return const Icon(Icons.error_outline);
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},
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),
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);
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});
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}
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}
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