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mobile-app/lib/presentation/screens/actions/dung/widget_dung_supply.dart

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  1. import 'package:farm_tpf/custom_model/Device.dart';

  2. import 'package:farm_tpf/custom_model/SuppliesUsing.dart';

  3. import 'package:farm_tpf/custom_model/Supply.dart';

  4. import 'package:farm_tpf/presentation/custom_widgets/WidgetErrorTextField.dart';

  5. import 'package:farm_tpf/presentation/custom_widgets/widget_text_form_field.dart';

  6. import 'package:farm_tpf/presentation/custom_widgets/widget_utils.dart';

  7. import 'package:farm_tpf/presentation/screens/actions/controller/ChangeDevice.dart';

  8. import 'package:farm_tpf/presentation/screens/actions/controller/ChangeFieldInForm.dart';

  9. import 'package:farm_tpf/presentation/screens/actions/controller/ChangeFormButton.dart';

  10. import 'package:farm_tpf/presentation/screens/actions/controller/ChangeSupplyUsing.dart';

  11. import 'package:farm_tpf/presentation/screens/actions/controller/ChangeUnit.dart';

  12. import 'package:farm_tpf/presentation/screens/actions/resource_device_activity/sc_device_activity.dart';

  13. import 'package:farm_tpf/presentation/screens/actions/state_management_helper/change_supply.dart';

  14. import 'package:farm_tpf/presentation/screens/resources/sc_resource_helper.dart';

  15. import 'package:farm_tpf/utils/const_common.dart';

  16. import 'package:farm_tpf/utils/const_string.dart';

  17. import 'package:farm_tpf/utils/const_style.dart';

  18. import 'package:farm_tpf/utils/validators.dart';

  19. import 'package:flutter/material.dart';

  20. import 'package:get/get.dart';

  21. import 'package:farm_tpf/utils/formatter.dart';

  22. 

  23. import '../util_action.dart';

  24. 

  25. class WidgetDungSupply extends StatefulWidget {

  26.   final List<SuppliesUsing> currentItems;

  27.   final Function(List<SuppliesUsing> supplyChanges) onChangeSupplies;

  28.   WidgetDungSupply({this.currentItems, @required this.onChangeSupplies});

  29.   @override

  30.   _WidgetDungSupplyState createState() => _WidgetDungSupplyState();

  31. }

  32. 

  33. class _WidgetDungSupplyState extends State<WidgetDungSupply> {

  34.   final _dosageController = TextEditingController();

  35.   final _quantityController = TextEditingController();

  36.   final _howToUseController = TextEditingController();

  37.   final changeSelectedSupply = Get.put(ChangeSupply());

  38.   final changeSupplyUsing = Get.put(ChangeSupplyUsing());

  39.   final changeUnit = Get.put(ChangeUnit());

  40.   final changeButton = Get.put(ChangeButtonInForm());

  41.   final changeSelectedDevice = Get.put(ChangeDevice());

  42.   final changeFormField = Get.put(ChangeFieldFormSupply());

  43.   GlobalKey<FormState> _formSupplyKey = GlobalKey();

  44. 

  45.   @override

  46.   void initState() {

  47.     super.initState();

  48.     changeSelectedSupply.initValue();

  49.     changeSelectedDevice.initValue();

  50.     changeSupplyUsing.init(widget.currentItems);

  51.     changeUnit.initValue();

  52.     changeButton.resetValue();

  53.     changeFormField.init();

  54.   }

  55. 

  56.   Widget _buildListSupply() {

  57.     return GetBuilder<ChangeSupplyUsing>(builder: (value) {

  58.       widget.onChangeSupplies(value.currentItems);

  59.       if (value.currentItems.isEmpty) {

  60.         return Container();

  61.       } else {

  62.         return Container(

  63.             height: 120,

  64.             child: ListView.builder(

  65.                 physics: ClampingScrollPhysics(),

  66.                 scrollDirection: Axis.horizontal,

  67.                 shrinkWrap: true,

  68.                 itemCount: value.currentItems.length,

  69.                 itemBuilder: (context, index) {

  70.                   return GestureDetector(

  71.                       onTap: () {

  72.                         print("edit");

  73.                         changeSupplyUsing.changeIndexEdit(index);

  74.                         changeButton.updateToEdit(true);

  75.                         var editedSupplyUsing = value.currentItems[index];

  76.                         var editedSupply = Supply()

  77.                           ..id = editedSupplyUsing.tbSuppliesInWarehouseId

  78.                           ..tbSuppliesName = editedSupplyUsing.supplyName

  79.                           ..unit = editedSupplyUsing.supplyUnit;

  80.                         changeSelectedSupply.change(editedSupply);

  81. 

  82.                         var editedDevice = Device()

  83.                           ..id = editedSupplyUsing.tbEquipmentOfCustomerId

  84.                           ..name = editedSupplyUsing.equipmentName;

  85.                         changeSelectedDevice.change(editedDevice);

  86. 

  87.                         changeUnit

  88.                             .updateListByUnitName(editedSupplyUsing.supplyUnit);

  89.                         changeUnit.updateSelected(editedSupplyUsing.supplyUnit);

  90.                         _dosageController.text = editedSupplyUsing.dosage;

  91.                         _howToUseController.text = editedSupplyUsing.howToUse;

  92.                         _quantityController.text = editedSupplyUsing.quantity

  93.                             .formatNumtoStringDecimal();

  94.                       },

  95.                       child: Card(

  96.                           child: Stack(

  97.                         alignment: Alignment.bottomCenter,

  98.                         overflow: Overflow.visible,

  99.                         children: <Widget>[

  100.                           Positioned(

  101.                               child: ClipRRect(

  102.                             borderRadius: BorderRadius.circular(8),

  103.                             child: Container(

  104.                               padding: EdgeInsets.all(4),

  105.                               width: 150,

  106.                               child: Column(

  107.                                 crossAxisAlignment: CrossAxisAlignment.center,

  108.                                 mainAxisAlignment: MainAxisAlignment.center,

  109.                                 children: [

  110.                                   SizedBox(

  111.                                     height: 12.0,

  112.                                   ),

  113.                                   Flexible(

  114.                                     child: Text(

  115.                                         value.currentItems[index].supplyName ??

  116.                                             "",

  117.                                         overflow: TextOverflow.ellipsis,

  118.                                         maxLines: 1),

  119.                                   ),

  120.                                   Validators.stringNotNullOrEmpty(

  121.                                           value.currentItems[index].dosage)

  122.                                       ? Flexible(

  123.                                           child: Text(

  124.                                               "${value.currentItems[index].dosage ?? ""}"))

  125.                                       : SizedBox(),

  126.                                   Validators.stringNotNullOrEmpty(value

  127.                                           .currentItems[index].quantity

  128.                                           .formatNumtoStringDecimal())

  129.                                       ? Flexible(

  130.                                           child: Text(

  131.                                               "${value.currentItems[index].quantity.formatNumtoStringDecimal() ?? ""} ${value.currentItems[index].supplyUnit ?? ""}"))

  132.                                       : SizedBox(),

  133.                                   Validators.stringNotNullOrEmpty(value

  134.                                           .currentItems[index].equipmentName)

  135.                                       ? Flexible(

  136.                                           child: Text(

  137.                                               "${value.currentItems[index].equipmentName ?? ""}"))

  138.                                       : SizedBox(),

  139.                                   Validators.stringNotNullOrEmpty(

  140.                                           value.currentItems[index].howToUse)

  141.                                       ? Flexible(

  142.                                           child: Text(

  143.                                               "${value.currentItems[index].howToUse ?? ""}"))

  144.                                       : SizedBox(),

  145.                                 ],

  146.                               ),

  147.                             ),

  148.                           )),

  149.                           Positioned(

  150.                             top: -10,

  151.                             right: -10,

  152.                             child: IconButton(

  153.                                 icon: Icon(

  154.                                   Icons.cancel,

  155.                                   color: Colors.redAccent,

  156.                                 ),

  157.                                 onPressed: () {

  158.                                   changeSupplyUsing.deleteSupply(index);

  159.                                 }),

  160.                           )

  161.                         ],

  162.                       )));

  163.                 }));

  164.       }

  165.     });

  166.   }

  167. 

  168.   Widget _btnSelectSubstrates() {

  169.     return GetBuilder<ChangeSupply>(builder: (data) {

  170.       return FlatButton(

  171.           padding:

  172.               EdgeInsets.only(top: 0.0, right: 0.0, bottom: 0.0, left: 0.0),

  173.           onPressed: () {

  174.             var currentIndexEdit = changeSupplyUsing.currentIndex;

  175.             Navigator.of(context)

  176.                 .push(MaterialPageRoute(

  177.                     builder: (_) => ResourceHelperScreen(

  178.                           titleName: "Phân bón",

  179.                           type: ConstCommon.supplyTypeDung,

  180.                           selectedId: changeSelectedSupply.selectedSupplyId,

  181.                           currentItems: changeSupplyUsing.currentItems,

  182.                           currentEditId: (currentIndexEdit >= 0)

  183.                               ? changeSupplyUsing.currentItems[currentIndexEdit]

  184.                                   .tbSuppliesInWarehouseId

  185.                               : -1,

  186.                         ),

  187.                     fullscreenDialog: false))

  188.                 .then((value) {

  189.               if (value != null) {

  190.                 var result = value as Supply;

  191.                 changeSelectedSupply.change(result);

  192.                 changeUnit.updateListByUnitName(result.unit);

  193.                 changeFormField.change(true);

  194.               }

  195.             });

  196.           },

  197.           child: GetBuilder<ChangeSupply>(builder: (_) {

  198.             var isValid = changeSelectedSupply.isValid;

  199.             return Column(

  200.               crossAxisAlignment: CrossAxisAlignment.start,

  201.               children: [

  202.                 Container(

  203.                     padding: EdgeInsets.only(

  204.                         top: 0.0, right: 0.0, bottom: 10.5, left: 0.0),

  205.                     decoration: BoxDecoration(

  206.                       border: Border(

  207.                           bottom: BorderSide(

  208.                               width: 1,

  209.                               color: isValid ? Colors.grey : Colors.red[900])),

  210.                     ),

  211.                     child: Column(

  212.                       crossAxisAlignment: CrossAxisAlignment.start,

  213.                       children: [

  214.                         Validators.stringNotNullOrEmpty(

  215.                                 changeSelectedSupply.selectedSupplyName)

  216.                             ? Text(

  217.                                 'Tên thương mại *',

  218.                                 style: TextStyle(

  219.                                     fontSize: 13,

  220.                                     fontWeight: FontWeight.normal,

  221.                                     color: isValid

  222.                                         ? Colors.black54

  223.                                         : Colors.red[600]),

  224.                               )

  225.                             : Text(

  226.                                 '',

  227.                                 style: TextStyle(

  228.                                     fontSize: 13,

  229.                                     fontWeight: FontWeight.normal,

  230.                                     color: isValid

  231.                                         ? Colors.black54

  232.                                         : Colors.red[600]),

  233.                               ),

  234.                         Row(

  235.                           children: [

  236.                             Expanded(

  237.                               child: Validators.stringNotNullOrEmpty(

  238.                                       changeSelectedSupply.selectedSupplyName)

  239.                                   ? Text(

  240.                                       changeSelectedSupply.selectedSupplyName,

  241.                                       style: TextStyle(

  242.                                           fontSize: 14.0,

  243.                                           color: Colors.black87))

  244.                                   : Text("Tên thương mại*",

  245.                                       style: TextStyle(

  246.                                           fontSize: 14.0,

  247.                                           color: Colors.black54)),

  248.                             ),

  249.                             Icon(

  250.                               Icons.arrow_drop_down,

  251.                               color: Colors.grey,

  252.                             ),

  253.                           ],

  254.                         )

  255.                       ],

  256.                     )),

  257.                 isValid ? SizedBox() : WidgetErrorTextField()

  258.               ],

  259.             );

  260.           }));

  261.     });

  262.   }

  263. 

  264.   Widget _btnSelectDevice() {

  265.     return GetBuilder<ChangeDevice>(builder: (data) {

  266.       return FlatButton(

  267.           padding:

  268.               EdgeInsets.only(top: 0.0, right: 0.0, bottom: 0.0, left: 0.0),

  269.           onPressed: () {

  270.             Navigator.of(context)

  271.                 .push(MaterialPageRoute(

  272.                     builder: (_) => ListDeviceActivity(

  273.                         selectedId: changeSelectedDevice.selectedDeviceId),

  274.                     fullscreenDialog: false))

  275.                 .then((value) {

  276.               if (value != null) {

  277.                 var result = value as Device;

  278.                 changeSelectedDevice.change(result);

  279.                 changeFormField.change(true);

  280.               }

  281.             });

  282.           },

  283.           child: Container(

  284.               padding: EdgeInsets.only(

  285.                   top: 0.0, right: 0.0, bottom: 10.5, left: 0.0),

  286.               decoration: BoxDecoration(

  287.                 border: kBorderTextField,

  288.               ),

  289.               child: Column(

  290.                 crossAxisAlignment: CrossAxisAlignment.start,

  291.                 children: [

  292.                   Validators.stringNotNullOrEmpty(

  293.                           changeSelectedDevice.selectedDeviceName)

  294.                       ? Text(

  295.                           'Thiết bị',

  296.                           style: TextStyle(

  297.                               fontSize: 13,

  298.                               fontWeight: FontWeight.normal,

  299.                               color: Colors.black54),

  300.                         )

  301.                       : Text(

  302.                           '',

  303.                           style: TextStyle(

  304.                               fontSize: 13,

  305.                               fontWeight: FontWeight.normal,

  306.                               color: Colors.black54),

  307.                         ),

  308.                   Row(

  309.                     children: [

  310.                       GetBuilder<ChangeSupply>(

  311.                           builder: (_) => Expanded(

  312.                                 child: Validators.stringNotNullOrEmpty(

  313.                                         changeSelectedDevice.selectedDeviceName)

  314.                                     ? Text(

  315.                                         changeSelectedDevice.selectedDeviceName,

  316.                                         style: TextStyle(

  317.                                             fontSize: 14.0,

  318.                                             color: Colors.black87))

  319.                                     : Text("Thiết bị",

  320.                                         style: TextStyle(

  321.                                             fontSize: 14.0,

  322.                                             color: Colors.black54)),

  323.                               )),

  324.                       Icon(

  325.                         Icons.arrow_drop_down,

  326.                         color: Colors.grey,

  327.                       ),

  328.                     ],

  329.                   ),

  330.                 ],

  331.               )));

  332.     });

  333.   }

  334. 

  335.   Widget _dropdownUnitTypes() {

  336.     return GetBuilder<ChangeUnit>(builder: (data) {

  337.       return DropdownButtonFormField<String>(

  338.         itemHeight: 100,

  339.         value: data.selectedUnit.isEmpty ? null : data.selectedUnit,

  340.         items: data.currentUnits

  341.             .map((label) => DropdownMenuItem(

  342.                   child: Text(label),

  343.                   value: label,

  344.                 ))

  345.             .toList(),

  346.         onChanged: (value) {

  347.           var currentQuantity = _quantityController.text;

  348.           num assignValue = currentQuantity.parseDoubleThousand();

  349.           if (assignValue != null) {

  350.             var oldSelected = data.selectedUnit;

  351.             if (oldSelected == value) {

  352.             } else {

  353.               assignValue = UtilAction.convertUnit(

  354.                   inputValue: assignValue,

  355.                   oldUnit: oldSelected,

  356.                   newUnit: value);

  357.             }

  358.             _quantityController.text = assignValue.formatNumtoStringDecimal();

  359.           }

  360.           changeUnit.updateSelected(value);

  361.         },

  362.       );

  363.     });

  364.   }

  365. 

  366.   _quantityField() {

  367.     return WidgetTextFormFieldNumber(

  368.       hintValue: "Tổng lượng sử dụng *",

  369.       labelText: "Tổng lượng sử dụng *",

  370.       textController: _quantityController,

  371.       validator: (String value) {

  372.         return Validators.validateNotNullOrEmpty(

  373.             value, label_validate_input_empty);

  374.       },

  375.       onChanged: (value) {

  376.         if (!Validators.stringNotNullOrEmpty(value) &&

  377.             !Validators.stringNotNullOrEmpty(_howToUseController.text) &&

  378.             !Validators.stringNotNullOrEmpty(_dosageController.text) &&

  379.             Get.find<ChangeSupply>().selectedSupplyId <= 0 &&

  380.             changeSelectedDevice.selectedDeviceId <= 0) {

  381.           changeFormField.change(false);

  382.         } else {

  383.           changeFormField.change(true);

  384.         }

  385.       },

  386.     );

  387.   }

  388. 

  389.   _buttonInForm() {

  390.     return GetBuilder<ChangeButtonInForm>(builder: (_) {

  391.       return Row(

  392.         mainAxisAlignment: MainAxisAlignment.spaceBetween,

  393.         children: [

  394.           _.isEdit

  395.               ? OutlineButton(

  396.                   shape: RoundedRectangleBorder(

  397.                       borderRadius: new BorderRadius.circular(8.0)),

  398.                   child: Text("Huỷ"),

  399.                   onPressed: () {

  400.                     changeButton.resetValue();

  401.                     _resetForm();

  402.                     _hidenKeyboard(context);

  403.                   })

  404.               : SizedBox(),

  405.           _.isEdit

  406.               ? Expanded(

  407.                   child: FlatButton(

  408.                       onPressed: () {

  409.                         if (_formSupplyKey.currentState.validate()) {

  410.                           _formSupplyKey.currentState.save();

  411.                           if (changeSelectedSupply.selectedSupplyId <= 0) {

  412.                             changeSelectedSupply.changeValid(false);

  413.                           } else {

  414.                             changeSelectedSupply.changeValid(true);

  415.                           }

  416.                           var currentSupply =

  417.                               changeSelectedSupply.currentSupply;

  418.                           var currentDevice =

  419.                               changeSelectedDevice.currentDevice;

  420.                           var currentQuantity =

  421.                               _quantityController.text.parseDoubleThousand();

  422.                           if (currentSupply.id != null &&

  423.                               (currentQuantity ?? 0) > 0) {

  424.                             var quantityWithCurrentSupplyUnit =

  425.                                 UtilAction.convertUnit(

  426.                                     inputValue: currentQuantity,

  427.                                     oldUnit: changeUnit.selectedUnit,

  428.                                     newUnit: changeSelectedSupply

  429.                                         .currentSupply.unit);

  430.                             SuppliesUsing newSup = SuppliesUsing()

  431.                               ..dosage = _dosageController.text

  432.                               ..howToUse = _howToUseController.text

  433.                               ..quantity = quantityWithCurrentSupplyUnit

  434.                               ..tbSuppliesInWarehouseId = currentSupply.id

  435.                               ..suppliesInWarehouseId = currentSupply.id

  436.                               ..supplyName = currentSupply.tbSuppliesName

  437.                               ..tbEquipmentOfCustomerId = currentDevice.id

  438.                               ..equipmentOfCustomerId = currentDevice.id

  439.                               ..equipmentName = currentDevice.name

  440.                               ..supplyUnit = currentSupply.unit

  441.                               ..unit = currentSupply.unit;

  442.                             changeSupplyUsing.editSupply(

  443.                                 changeSupplyUsing.currentIndex, newSup);

  444.                             _resetForm();

  445.                             _hidenKeyboard(context);

  446.                           } else if (currentSupply.id == null ||

  447.                               ((currentQuantity ?? 0) <= 0)) {

  448.                             Utils.showSnackBarWarning(

  449.                                 message: "Vui lòng nhập vật tư và số lượng");

  450.                           }

  451.                         } else {

  452.                           Utils.showSnackBarWarning(

  453.                               message: "Vui lòng nhập vật tư và số lượng");

  454.                           if (changeSelectedSupply.selectedSupplyId <= 0) {

  455.                             changeSelectedSupply.changeValid(false);

  456.                           } else {

  457.                             changeSelectedSupply.changeValid(true);

  458.                           }

  459.                         }

  460.                       },

  461.                       child: Text(

  462.                         "Sửa phân bón",

  463.                         style: TextStyle(color: Colors.blue),

  464.                       )),

  465.                 )

  466.               : Expanded(

  467.                   child: FlatButton(

  468.                       onPressed: () {

  469.                         if (_formSupplyKey.currentState.validate()) {

  470.                           _formSupplyKey.currentState.save();

  471.                           if (changeSelectedSupply.selectedSupplyId <= 0) {

  472.                             changeSelectedSupply.changeValid(false);

  473.                           } else {

  474.                             changeSelectedSupply.changeValid(true);

  475.                           }

  476.                           var currentSupply =

  477.                               changeSelectedSupply.currentSupply;

  478.                           var currentDevice =

  479.                               changeSelectedDevice.currentDevice;

  480.                           var currentQuantity =

  481.                               _quantityController.text.parseDoubleThousand();

  482.                           if (currentSupply.id != null &&

  483.                               (currentQuantity ?? 0) > 0) {

  484.                             var quantityWithCurrentSupplyUnit =

  485.                                 UtilAction.convertUnit(

  486.                                     inputValue: currentQuantity,

  487.                                     oldUnit: changeUnit.selectedUnit,

  488.                                     newUnit: changeSelectedSupply

  489.                                         .currentSupply.unit);

  490.                             SuppliesUsing newSup = SuppliesUsing()

  491.                               ..dosage = _dosageController.text

  492.                               ..howToUse = _howToUseController.text

  493.                               ..quantity = quantityWithCurrentSupplyUnit

  494.                               ..tbSuppliesInWarehouseId = currentSupply.id

  495.                               ..suppliesInWarehouseId = currentSupply.id

  496.                               ..supplyName = currentSupply.tbSuppliesName

  497.                               ..supplyUnit = currentSupply.unit

  498.                               ..tbEquipmentOfCustomerId = currentDevice.id

  499.                               ..equipmentOfCustomerId = currentDevice.id

  500.                               ..equipmentName = currentDevice.name

  501.                               ..unit = currentSupply.unit;

  502.                             changeSupplyUsing.addSupply(newSup);

  503.                             _resetForm();

  504.                             _hidenKeyboard(context);

  505.                           } else if (currentSupply.id == null ||

  506.                               ((currentQuantity ?? 0) <= 0)) {

  507.                             Utils.showSnackBarWarning(

  508.                                 message: "Vui lòng nhập vật tư và số lượng");

  509.                           }

  510.                         } else {

  511.                           Utils.showSnackBarWarning(

  512.                               message: "Vui lòng nhập vật tư và số lượng");

  513.                           if (changeSelectedSupply.selectedSupplyId <= 0) {

  514.                             changeSelectedSupply.changeValid(false);

  515.                           } else {

  516.                             changeSelectedSupply.changeValid(true);

  517.                           }

  518.                           //

  519.                         }

  520.                       },

  521.                       child: Text(

  522.                         "+ Thêm phân bón",

  523.                         style: TextStyle(color: Colors.blue),

  524.                       )),

  525.                 )

  526.         ],

  527.       );

  528.     });

  529.   }

  530. 

  531.   Widget _formEdit() {

  532.     return Form(

  533.       key: _formSupplyKey,

  534.       child: Column(

  535.         children: [

  536.           Container(

  537.             padding: EdgeInsets.all(8.0),

  538.             margin: EdgeInsets.all(8.0),

  539.             decoration: BoxDecoration(

  540.                 shape: BoxShape.rectangle,

  541.                 borderRadius: BorderRadius.circular(10),

  542.                 color: Colors.white,

  543.                 border: Border.all(color: Colors.grey[300])),

  544.             child: Column(

  545.               children: [

  546.                 _btnSelectSubstrates(),

  547.                 TextFormField(

  548.                   keyboardType: TextInputType.text,

  549.                   controller: _dosageController,

  550.                   decoration: InputDecoration(labelText: "Liều lượng sử dụng"),

  551.                   onSaved: (newValue) {},

  552.                   onChanged: (value) {

  553.                     if (!Validators.stringNotNullOrEmpty(

  554.                             _quantityController.text) &&

  555.                         !Validators.stringNotNullOrEmpty(

  556.                             _howToUseController.text) &&

  557.                         !Validators.stringNotNullOrEmpty(value) &&

  558.                         Get.find<ChangeSupply>().selectedSupplyId <= 0 &&

  559.                         changeSelectedDevice.selectedDeviceId <= 0) {

  560.                       changeFormField.change(false);

  561.                     } else {

  562.                       changeFormField.change(true);

  563.                     }

  564.                   },

  565.                 ),

  566.                 Row(

  567.                     mainAxisSize: MainAxisSize.min,

  568.                     mainAxisAlignment: MainAxisAlignment.spaceEvenly,

  569.                     crossAxisAlignment: CrossAxisAlignment.center,

  570.                     children: [

  571.                       Expanded(

  572.                         flex: 2,

  573.                         child: Container(

  574.                           height: 82,

  575.                           child: _quantityField(),

  576.                         ),

  577.                       ),

  578.                       SizedBox(

  579.                         width: 16.0,

  580.                       ),

  581.                       Expanded(

  582.                           flex: 1,

  583.                           child: Align(

  584.                             alignment: Alignment.bottomCenter,

  585.                             child: _dropdownUnitTypes(),

  586.                           )),

  587.                     ]),

  588.                 _btnSelectDevice(),

  589.                 TextFormField(

  590.                   keyboardType: TextInputType.text,

  591.                   controller: _howToUseController,

  592.                   decoration: InputDecoration(labelText: "Phương pháp sử dụng"),

  593.                   onSaved: (newValue) {},

  594.                   onChanged: (value) {

  595.                     if (!Validators.stringNotNullOrEmpty(

  596.                             _quantityController.text) &&

  597.                         !Validators.stringNotNullOrEmpty(value) &&

  598.                         !Validators.stringNotNullOrEmpty(

  599.                             _dosageController.text) &&

  600.                         Get.find<ChangeSupply>().selectedSupplyId <= 0 &&

  601.                         changeSelectedDevice.selectedDeviceId <= 0) {

  602.                       changeFormField.change(false);

  603.                     } else {

  604.                       changeFormField.change(true);

  605.                     }

  606.                   },

  607.                 ),

  608.               ],

  609.             ),

  610.           ),

  611.           _buttonInForm()

  612.         ],

  613.       ),

  614.     );

  615.   }

  616. 

  617.   _resetForm() {

  618.     changeSupplyUsing.changeIndexEdit(-1);

  619.     changeButton.resetValue();

  620.     _dosageController.text = "";

  621.     _howToUseController.text = "";

  622.     _quantityController.text = "";

  623.     changeUnit.initValue();

  624.     changeSelectedSupply.initValue();

  625.     changeSelectedDevice.initValue();

  626.     changeFormField.change(false);

  627.   }

  628. 

  629.   _hidenKeyboard(BuildContext context) {

  630.     FocusScopeNode currentFocus = FocusScope.of(context);

  631.     if (!currentFocus.hasPrimaryFocus) {

  632.       currentFocus.unfocus();

  633.     }

  634.   }

  635. 

  636.   @override

  637.   Widget build(BuildContext context) {

  638.     return Column(

  639.       children: [

  640.         Padding(

  641.           padding: const EdgeInsets.all(8.0),

  642.           child: Align(

  643.             alignment: Alignment.centerLeft,

  644.             child: Text(

  645.               'Phân bón',

  646.               style: TextStyle(color: Colors.black54, fontSize: 14),

  647.             ),

  648.           ),

  649.         ),

  650.         _buildListSupply(),

  651.         SizedBox(

  652.           height: 8.0,

  653.         ),

  654.         _formEdit(),

  655.         SizedBox(

  656.           height: 8.0,

  657.         ),

  658.       ],

  659.     );

  660.   }

  661. }