David PHAM-VAN

Fix Flutter 1.12 compatiblity

... ... @@ -246,7 +246,7 @@ class _PdfPreviewState extends State<PdfPreview> {
actions.add(
DropdownButton<PdfPageFormat>(
style: theme.accentTextTheme.button,
dropdownColor: Colors.grey.shade700,
// dropdownColor: Colors.grey.shade700,
icon: Icon(
Icons.arrow_drop_down,
color: theme.accentIconTheme.color,
... ...