OpenMediacenterMobileFlutter/lib/navigation/categorie_screen.dart

import 'package:flutter/material.dart';
import '../api/tag_api.dart';
import '../preview/tag_tile.dart';
import '../drawer/my_drawer.dart';
import '../screen_loading.dart';

import '../types/tag.dart';

class CategorieScreen extends StatefulWidget {
  const CategorieScreen({Key? key}) : super(key: key);

  @override
  State<CategorieScreen> createState() => _CategorieScreenState();
}

class _CategorieScreenState extends State<CategorieScreen> {
  late Future<List<Tag>> _categories;

  @override
  void initState() {
    super.initState();
    _categories = loadAllTags();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text("Categories"),
        ),
        body: FutureBuilder(
          future: _categories,
          builder: (context, AsyncSnapshot<List<Tag>> snapshot) {
            if (snapshot.connectionState != ConnectionState.done) {
              return ScreenLoading();
            }

            if (snapshot.hasError) {
              return Text("Error");
            } else if (snapshot.hasData) {
              return Padding(
                padding: EdgeInsets.all(5),
                child: SingleChildScrollView(
                  child: Wrap(
                    spacing: 5,
                    runSpacing: 5,
                    alignment: WrapAlignment.start,
                    children: snapshot.data!
                        .map((e) => TagTile(
                              tag: e,
                            ))
                        .toList(growable: false),
                  ),
                ),
              );
            } else {
              return ScreenLoading();
            }
          },
        ),
        drawer: MyDrawer());
  }
}