undo method
void
undo()
revocar
Implementation
void undo() {
// print(_undoList);
if (_undoList.isNotEmpty) {
_redoList.add(_undoList.last);
_undoList.removeLast();
if (_undoList.isNotEmpty) {
_textEditingController.value = TextEditingValue(
text: _undoList.last.text,
selection: TextSelection(
extentOffset: _undoList.last.position,
baseOffset: _undoList.last.position),
);
} else {
_textEditingController.value = TextEditingValue(
text: initContent,
selection: TextSelection(
extentOffset: initContent.length, baseOffset: initContent.length),
);
}
}
}