saveFilePicker method
保存文件选择器macos
Implementation
Future<String?> saveFilePicker(
{SaveFilePickerOptionsWithMacOS? optionsWithMacOS}) async {
if (!isMacOS) return null;
Map<String, dynamic> options = <String, dynamic>{};
if (isMacOS) {
optionsWithMacOS ??= SaveFilePickerOptionsWithMacOS();
options = optionsWithMacOS.toMap();
}
final String? path = await channel.invokeMethod('saveFilePicker', options);
return path;
}