pdf_opener.dart

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import 'dart:io';
 
import 'package:flutter/services.dart';
import 'package:open_file/open_file.dart';
import 'package:path_provider/path_provider.dart';
 
class PDFOpener {
  static Future<void> openPDFAsset(String assetPath) async {
    try {
      // Get temporary directory
      final dir = await getTemporaryDirectory();
      final fileName = assetPath.split('/').last;
      final file = File('${dir.path}/$fileName');
 
      // Copy asset to temporary directory
      final data = await rootBundle.load(assetPath);
      final bytes = data.buffer.asUint8List();
      await file.writeAsBytes(bytes);
 
      // Open the file
      final result = await OpenFile.open(file.path);
 
      if (result.type != ResultType.done) {
        throw 'Could not open the PDF: ${result.message}';
      }
    } catch (e) {
      rethrow;
    }
  }
}