saveAndLaunchFile static method

Future<void> saveAndLaunchFile(List<int> bytes, String fileName)

To save the Excel file in the device

Implementation

/*static Future<void> saveAndLaunchFileOld(
    List<int> bytes, String fileName) async {
  String? path;
  if (Platform.isAndroid) {
    // final Directory? directory = await getExternalStorageDirectory();
    final Directory? directory = await getApplicationDocumentsDirectory();
    if (directory != null) {
      path = directory.path;
    }
  } else if (Platform.isIOS || Platform.isLinux || Platform.isWindows) {
    final Directory directory = await getApplicationSupportDirectory();
    path = directory.path;
  } else {
    path = await PathProviderPlatform.instance.getApplicationSupportPath();
  }
  final File file =
  File(Platform.isWindows ? '$path\\$fileName' : '$path/$fileName');
  await file.writeAsBytes(bytes, flush: true);
  if (Platform.isAndroid || Platform.isIOS) {
    final Map<String, String> argument = <String, String>{
      'file_path': '$path/$fileName'
    };
    try {
      //ignore: unused_local_variable
      final Future<Map<String, String>?> result =
      _platformCall.invokeMethod('viewExcel', argument);
    } catch (e) {
      throw Exception(e);
    }
  } else if (Platform.isWindows) {
    await Process.run('start', <String>['$path\\$fileName'],
        runInShell: true);
  } else if (Platform.isMacOS) {
    await Process.run('open', <String>['$path/$fileName'], runInShell: true);
  } else if (Platform.isLinux) {
    await Process.run('xdg-open', <String>['$path/$fileName'],
        runInShell: true);
  }
}*/


static Future<void> saveAndLaunchFile(
    List<int> bytes, String fileName) async {
  late String directoryPath;

  if (Platform.isAndroid) {
    const String downloadPath = '/storage/emulated/0/Download';

    // Ensure folder exists
    final Directory downloadDir = Directory(downloadPath);
    if (!downloadDir.existsSync()) {
      downloadDir.createSync(recursive: true);
    }

    directoryPath = downloadPath;  // <-- ONLY DIRECTORY
  }
  else if (Platform.isIOS || Platform.isLinux || Platform.isWindows) {
    final Directory dir = await getApplicationSupportDirectory();
    directoryPath = dir.path;
  }
  else {
    final Directory dir = await getApplicationDocumentsDirectory();
    directoryPath = dir.path;
  }

  // Now create FULL FILE PATH only once:
  final String fullPath = Platform.isWindows
      ? "$directoryPath\\$fileName"
      : "$directoryPath/$fileName";

  final File file = File(fullPath);

  await file.writeAsBytes(bytes, flush: true);

  print("Saved File Path: $fullPath");

  AppUtils.showSnackBar("File downloaded successfully: $fileName");
  // Open file
  await OpenFilex.open(fullPath);
}