addHistory method
Implementation
Future<void> addHistory(HistoryModel historyModel) async {
var faces = <String>[];
for (var item in imageList) {
var uint8list = Uint8List.fromList(convertImagetoPng(item)!);
var path = await FileUtils.saveByteFile(uint8list);
faces.add(path);
}
if (signature != null) {
historyModel.signature = await FileUtils.saveByteFile(signature);
}
historyModel.faces = faces;
historys.add(historyModel);
final items = historys.map((e) => e.toJson()).toList();
unawaited(Application.preferences.setStringList(HISTORY, items));
}