Flutter TextField with currency format

[THIS CODE DOESN’T WORKS FOR ALL CASES]

I just got it working this way, sharing in case someone needs too:

TextField

TextFormField(  
    //validator: ,  
    controller: controllerValor,  
    inputFormatters: [  
        WhitelistingTextInputFormatter.digitsOnly,
        // Fit the validating format.
        //fazer o formater para dinheiro
        CurrencyInputFormatter()
    ],
    keyboardType: TextInputType.number, ...  

TextInputFormatter

class CurrencyInputFormatter extends TextInputFormatter {

    TextEditingValue formatEditUpdate(TextEditingValue oldValue, TextEditingValue newValue) {

        if(newValue.selection.baseOffset == 0){
            print(true);
            return newValue;
        }

        double value = double.parse(newValue.text);

        final formatter = NumberFormat.simpleCurrency(locale: "pt_Br");

        String newText = formatter.format(value/100);

        return newValue.copyWith(
            text: newText,
            selection: new TextSelection.collapsed(offset: newText.length));
    }
}

This is the result of the code: