add base widget text form field

ios/Flutter/.last_build_id

-440505e9ea1eee7043d2cbfeb318f6bc
+5729eb498eaeb9c64784fcfc80bbb33b

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 String hintValue;
+  WidgetTextFormFieldNumber(
+      {@required this.textController,
+      @required this.onSaved,
+      @required this.hintValue,
+      this.validator});
+  @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),
+      validator: validator ??
+          (String value) {
+            return Validators.validNumberOrEmpty(value, label_invalid_number);
+          },
+      controller: textController,
+      onSaved: onSaved,
+    );
+  }
+}

lib/presentation/screens/actions/plant/sc_edit_action_plant.dart

 import 'package:farm_tpf/presentation/custom_widgets/bloc/media_helper_bloc.dart';
 import 'package:farm_tpf/presentation/custom_widgets/widget_loading.dart';
 import 'package:farm_tpf/presentation/custom_widgets/widget_media_picker.dart';
+import 'package:farm_tpf/presentation/custom_widgets/widget_text_form_field.dart';
 import 'package:farm_tpf/presentation/custom_widgets/widget_utils.dart';
 import 'package:farm_tpf/presentation/screens/actions/bloc/action_detail_bloc.dart';
 import 'package:farm_tpf/presentation/screens/actions/controller/ChangeSupplyUsing.dart';
 import 'package:farm_tpf/utils/pref.dart';
 import 'package:farm_tpf/utils/validators.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_datetime_picker/flutter_datetime_picker.dart';
 import 'package:get/get.dart';
   }
 
   Widget _quantityField() {
-    return TextFormField(
-      keyboardType: TextInputType.numberWithOptions(decimal: true),
-      inputFormatters: [
-        ThousandsFormatter(
-            formatter: NumberFormat("#,###.##", "es"), allowFraction: true)
-      ],
-      decoration: InputDecoration(labelText: "Số lượng cây trồng"),
-      controller: _quantityController,
+    return WidgetTextFormFieldNumber(
+      hintValue: "Số lượng cây trồng",
+      textController: _quantityController,
       onSaved: (newValue) {
         _plant.quantity = newValue.parseDoubleThousand();
       },

lib/utils/const_common.dart

   static int kMaxAgeCache = 7; // 7days
   static const String baseUrl = "http://tpf.aztrace.vn";
   static const String baseImageUrl = "http://tpf.aztrace.vn/upload/";
+  static RegExp regExpDecimal = RegExp("[0-9,]");
 
   static const String apiDetailNursery = "api/activity-nursery";
   static const String apiDetailCropStatus = "api/activity-crop-status";

lib/utils/const_string.dart

 const String label_district_empty = "Vui lòng chọn Quận/Huyện";
 const String label_district_empty_message = "Quận/Huyện đang trống";
 
+const String label_invalid_number = "Vui lòng nhập số";
+
 //Exception
 const String exception_common = "Đã có lỗi xảy ra";
 const String exception_dio_cancle = "Truy vấn đến máy chủ bị huỷ";

lib/utils/validators.dart

     }
   }
 
-  static String validNumber(String value, String errorMessage) {
+  static String validNumberOrEmpty(String value, String errorMessage) {
+    if (value.isEmpty) return null;
     try {
       var doubleValue = value.parseDoubleThousand();
       if (doubleValue > 0) {