fnotes/lib/notes.dart

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:fnotes/theme_bloc.dart';

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

  @override
  State<Notes> createState() => _NotesState();
}

class _NotesState extends State<Notes> {
  List<String> notes = List.empty(growable: true);
  final phraseController = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Your notes:'),
        actions: [
          IconButton(
            icon: const Icon(Icons.light_mode),
            onPressed: () {
              context.read<ThemeBloc>().add(ThemeEvent());
            },
          )
        ],
      ),
      body: BlocBuilder<ThemeBloc, ThemeState>(
        builder: (context, state) {
          return ListView.builder(
            itemCount: notes.length,
            itemBuilder: (context, index) {
              return Dismissible(
                onDismissed: (direction) {
                  notes.removeAt(index);
                  setState(() {});
                },
                key: ValueKey(notes[index]),
                child: Card(
                  elevation: 5,
                  color: state.theme.colorScheme.primaryContainer,
                  child: SizedBox(
                    height: 50,
                    child: Padding(
                      padding: const EdgeInsets.only(left: 20),
                      child: Align(
                        alignment: Alignment.centerLeft,
                        child: Text(
                          notes[index],
                          style: TextStyle(
                              color:
                                  state.theme.colorScheme.onPrimaryContainer),
                        ),
                      ),
                    ),
                  ),
                ),
              );
            },
          );
        },
      ),
      floatingActionButton: FloatingActionButton(
          onPressed: () {
            final newNote = showEnterItemDialog(context);
            newNote.then(
              (value) {
                if (value != null && value.isNotEmpty) {
                  addNote(value);
                  setState(() {});
                }
              },
            );
          },
          child: const Icon(Icons.add)),
    );
  }

  Future<String?> showEnterItemDialog(BuildContext context) {
    return showDialog<String>(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: const Text('Enter your list item here:'),
          content: TextField(
            onSubmitted: (val) {
              Navigator.pop(context, val);
              phraseController.clear();
            },
            autofocus: true,
            controller: phraseController,
            decoration: InputDecoration(
                hintText: 'Remember me!',
                suffixIcon: IconButton(
                  onPressed: () {
                    Navigator.pop(context, phraseController.value.text);
                    phraseController.clear();
                  },
                  icon: const Icon(Icons.check),
                )),
          ),
          actions: <Widget>[
            TextButton(
              child: const Text('Cancel'),
              onPressed: () {
                Navigator.pop(context);
              },
            ),
          ],
        );
      },
    );
  }

  void addNote(String text) {
    notes.add(text);
  }
}