notes/lib/all_notes_page.dart

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:notes/icon_material_button.dart';
import 'package:notes/note_tile.dart';
import 'package:notes/savesystem/path.dart';

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

  @override
  State<AllNotesPage> createState() => _AllNotesPageState();
}

class _AllNotesPageState extends State<AllNotesPage> {
  List<NoteTileData> tileData = [];

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        SizedBox(
          height: 10 + MediaQuery.of(context).viewPadding.top,
        ),
        Row(
          children: [
            const SizedBox(
              width: 20,
            ),
            const Text(
              'All notes',
              style: TextStyle(
                  color: Color.fromRGBO(255, 255, 255, .85), fontSize: 22),
            ),
            Expanded(child: Container()),
            IconMaterialButton(
              icon: const Icon(Icons.picture_as_pdf_outlined),
              color: const Color.fromRGBO(255, 255, 255, .85),
              onPressed: () {},
            ),
            IconMaterialButton(
              icon: const Icon(Icons.search),
              color: const Color.fromRGBO(255, 255, 255, .85),
              onPressed: () {},
            ),
            IconMaterialButton(
              icon: const Icon(Icons.more_vert),
              color: const Color.fromRGBO(255, 255, 255, .85),
              onPressed: () {},
            ),
            const SizedBox(
              width: 15,
            )
          ],
        ),
        Row(
          children: const [Text('date modified..')],
        ),
        _buildNoteTiles()
      ],
    );
  }

  Widget _buildNoteTiles() {
    return Expanded(
      child: GridView.builder(
        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
          crossAxisCount: 5,
        ),
        padding: const EdgeInsets.all(2),
        itemBuilder: (BuildContext context, int idx) =>
            NoteTile(data: tileData[idx]),
        itemCount: tileData.length,
      ),
    );
  }

  @override
  void initState() {
    super.initState();
    loadAllNotes();
  }

  Future<void> loadAllNotes() async {
    final path = await getSavePath();
    final dta = await path
        .list()
        .where((fsentity) => fsentity.path.endsWith('.dbnote'))
        .asyncMap((fsentity) async {
      final lastmodified = (await fsentity.stat()).modified;
      final filename = fsentity.path.split(Platform.pathSeparator).last;
      final name = filename.substring(0, filename.length - 7);
      return NoteTileData(name, filename, lastmodified);
    }).toList();
    dta.sort(
      (a, b) => a.lastModified.isAfter(b.lastModified) ? -1 : 1,
    );
    setState(() {
      tileData = dta;
    });
  }
}