annotation_for_all 0.1.0

annotation_for_all: ^0.1.0 copied to clipboard

example/lib/main.dart

import 'dart:io';

import 'package:annotation_for_all/annotation_for_all.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

void main() => runApp(const ExampleApp());

class ExampleApp extends StatelessWidget {
  const ExampleApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'annotation_for_all example',
      home: const HomePage(),
    );
  }
}

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

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  String? _status;

  Future<void> _pickAndOpen() async {
    // No extension filter — try a PDF, a photo, or a .docx to see all three
    // branches of FileAnnotator.open.
    final result = await FilePicker.platform.pickFiles(
      withData: kIsWeb, // web needs bytes; mobile/desktop can use the path
    );
    if (result == null || result.files.isEmpty) return;
    final picked = result.files.single;

    if (!mounted) return;
    final outcome = await FileAnnotator.open(
      context,
      // On web, PlatformFile.path isn't just null — merely accessing the
      // getter throws. Only touch .path off the web.
      file: kIsWeb ? null : File(picked.path!),
      bytes: picked.bytes,
      fileName: picked.name,
      enableMarksDialog: true, // off by default; flip on to demo it
      totalMarks: 100,
      // Only show Tick and Cross in the marks toolbar — no number/circle/
      // question mark. Pass the full set (or omit this) to show all of them.
      enabledMarks: const {MarkType.rightTick, MarkType.incorrectCross},
    );

    setState(() {
      switch (outcome.handledAs) {
        case FileHandledAs.annotated:
          _status = 'Saved ${outcome.annotatedBytes!.lengthInBytes} bytes';
          break;
        case FileHandledAs.viewed:
          _status = 'Opened "${picked.name}" externally';
          break;
        case FileHandledAs.downloaded:
          _status = 'Downloaded "${picked.name}"';
          break;
        case FileHandledAs.cancelled:
          _status = 'Cancelled';
          break;
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('annotation_for_all example')),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: _pickAndOpen,
              child: const Text('Pick a file'),
            ),
            const SizedBox(height: 16),
            if (_status != null) Text(_status!),
          ],
        ),
      ),
    );
  }
}