mobile-app/lib/presentation/custom_widgets/widget_text_form_field.dart

import 'package:farm_tpf/utils/const_common.dart';
import 'package:farm_tpf/utils/const_string.dart';
import 'package:farm_tpf/utils/validators.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:intl/intl.dart';
import 'package:pattern_formatter/pattern_formatter.dart';

class WidgetTextFormFieldNumber extends StatelessWidget {
  final TextEditingController textController;
  final void Function(String) onSaved;
  final void Function(String) validator;
  final void Function(String) onChanged;
  final String hintValue;
  WidgetTextFormFieldNumber(
      {@required this.textController,
      this.onSaved,
      @required this.hintValue,
      this.validator,
      this.onChanged});
  @override
  Widget build(BuildContext context) {
    return TextFormField(
      keyboardType: TextInputType.numberWithOptions(decimal: true),
      inputFormatters: [
        FilteringTextInputFormatter.allow(ConstCommon.regExpDecimal),
        ThousandsFormatter(
            formatter: NumberFormat("#,###.####", "es"), allowFraction: true),
      ],
      decoration: InputDecoration(
        labelText: hintValue,
        errorStyle: TextStyle(height: 0),
      ),
      validator: validator ??
          (String value) {
            return Validators.validNumberOrEmpty(value, label_invalid_number);
          },
      controller: textController,
      onSaved: onSaved,
      onChanged: onChanged,
    );
  }
}