polaris/ui/lib/search.dart

import 'package:flutter/material.dart';
import 'package:dio/dio.dart';
import 'package:ui/APIs.dart';
import 'package:ui/server_response.dart';
import 'package:ui/utils.dart';

class SearchPage extends StatefulWidget {
  const SearchPage({super.key});

  static const route = "/search";

  @override
  State<StatefulWidget> createState() {
    return _SearchPageState();
  }
}

class _SearchPageState extends State<SearchPage> {
  List<dynamic> list = List.empty();

  void _queryResults(BuildContext context, String q) async {
    final dio = Dio();
    var resp = await dio.get(APIs.searchUrl, queryParameters: {"query": q});
    //var dy = jsonDecode(resp.data.toString());

    print("search page results: ${resp.data}");
    var rsp = ServerResponse.fromJson(resp.data as Map<String, dynamic>);
    if (rsp.code != 0 && context.mounted) {
      Utils.showAlertDialog(context, rsp.message);
      return;
    }

    var data = rsp.data as Map<String, dynamic>;
    var results = data["results"] as List<dynamic>;

    setState(() {
      list = results;
    });
  }

  @override
  Widget build(BuildContext context) {
    var cards = List<Widget>.empty(growable: true);
    for (final item in list) {
      var m = item as Map<String, dynamic>;
      cards.add(Card(
          margin: const EdgeInsets.all(4),
          clipBehavior: Clip.hardEdge,
          child: InkWell(
            //splashColor: Colors.blue.withAlpha(30),
            onTap: () {
              //showDialog(context: context, builder: builder)
              debugPrint('Card tapped.');
            },
            child: Row(
              children: <Widget>[
                Flexible(
                  child: SizedBox(
                    width: 150,
                    height: 200,
                    child: Image.network(
                      APIs.tmdbImgBaseUrl + m["poster_path"],
                      fit: BoxFit.contain,
                    ),
                  ),
                ),
                Flexible(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        m["name"],
                        style: const TextStyle(
                            fontSize: 14, fontWeight: FontWeight.bold),
                      ),
                      const Text(""),
                      Text(m["overview"])
                    ],
                  ),
                )
              ],
            ),
          )));
    }

    return Expanded(
      child: Column(
        children: [
          TextField(
            autofocus: true,
            onSubmitted: (value) => _queryResults(context,value),
            decoration: const InputDecoration(
                labelText: "搜索",
                hintText: "搜索剧集名称",
                prefixIcon: Icon(Icons.search)),
          ),
          Expanded(
              child: ListView(
            children: cards,
          ))
        ],
      ),
    );
  }
}

class SearchBarApp extends StatefulWidget {
  const SearchBarApp({
    super.key,
    required this.onChanged,
  });

  final ValueChanged<String> onChanged;
  @override
  State<SearchBarApp> createState() => _SearchBarAppState();
}

class _SearchBarAppState extends State<SearchBarApp> {
  @override
  Widget build(BuildContext context) {
    return SearchAnchor(
        builder: (BuildContext context, SearchController controller) {
      return SearchBar(
        controller: controller,
        padding: const WidgetStatePropertyAll<EdgeInsets>(
            EdgeInsets.symmetric(horizontal: 16.0)),
        onSubmitted: (value) => {widget.onChanged(controller.text)},
        leading: const Icon(Icons.search),
      );
    }, suggestionsBuilder: (BuildContext context, SearchController controller) {
      return List<ListTile>.generate(0, (int index) {
        final String item = 'item $index';
        return ListTile(
          title: Text(item),
          onTap: () {
            setState(() {
              controller.closeView(item);
            });
          },
        );
      });
    });
  }
}