buildViewer method

@override Widget buildViewer()

Implementation

@override
Widget buildViewer() {
  if (_excel == null || _currentSheet.isEmpty) {
    return Center(child: Text(setText('Không có dữ liệu', 'No data')));
  }

  final sheet = _excel!.tables[_currentSheet];
  if (sheet == null) {
    return Center(
      child: Text(setText('Sheet không tồn tại', 'Sheet not found')),
    );
  }

  return Column(
    children: [
      // Sheet selector
      if (_sheetNames.length > 1) _buildSheetSelector(),

      // Excel table
      Expanded(
        child: SingleChildScrollView(
          scrollDirection: Axis.horizontal,
          child: SingleChildScrollView(
            scrollDirection: Axis.vertical,
            child: _buildTable(sheet),
          ),
        ),
      ),
    ],
  );
}