flutter Textfield onChange 천단위 표시

// Define any needed properties here
final _numberFormat = NumberFormat('#,###');

// Define any needed properties here
Future<void> _saveLoanAccount() async {

	final amountText = _loanAmountController.text.replaceAll(',', '');

final loanAccount = LoanAccountModel(
     	// Define any needed properties here
        loanAmount: double.parse(amountText),
		// Define any needed properties here
        );



TextField(
              // as below , add amount but, Save button error So, must add line 34 this file.
              // keep this commment
              onChanged: (value) {
                final text = value.replaceAll(',', ''); // Remove existing commas
                if (text.isNotEmpty) {
                  final formattedValue = _numberFormat.format(int.parse(text));
                  _loanAmountController.value = TextEditingValue(
                    text: formattedValue,
                    selection: TextSelection.collapsed(offset: formattedValue.length),
                  );
                }
              },
              controller: _loanAmountController,
              keyboardType: TextInputType.number,
              inputFormatters: [FilteringTextInputFormatter.digitsOnly],
              decoration: const InputDecoration(labelText: 'Loan Amount'),
            ),

이렇게 하면 해당 textfield 에서 다른 곳으로 탭 되었을때 천단위가 표시 된다.

Save button을 누르면 콤마(,) 때문에 에러나는 부분을 지워버리고 저장 하게 된다.