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A customizable and elegant form field

form-field-package #

A package to build elegant looking form fields without any boilerplate code. The form fields are a part of a Form object and can be customized in every little way, from field tags to label styles. This reduces the effort to make multiple form fields while making lengthy Forms.

Usage

CustomFormField().field(
              question: "Name",
              canBeNull: true,
              formKey: key,
              onSavedCallback: (String val)=>print(val),
              horizontalTextPadding: 20,
              verticalTextPadding: 10,
              labelTextStyle: TextStyle(color: Colors.black),
              icon: const Icon(
                Icons.email_outlined,
                color: Colors.grey,
                size: 25,
              ),
              fieldTextFontSize: 15,
            ),

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CanBeNull parameter

You can change the canBeNull property to false, so that when key.currentState.save() is called, the field expresses an error.

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onSavedCallback parameter

This is a callback function that is provded along with the form field to define function's behaviour when the form's currentState is saved. For example, we can declare a number of string params and then assign them values to them using this parameter.

class FormPageState extends State<FormPage> {
  GlobalKey<FormState> key = GlobalKey<FormState>();
  CustomFormField customFormField = CustomFormField();
  String? _name;
  String? _email;
  String? _age;

  @override
  Widget build(BuildContext context) {
    return Form(
        key: key,
        child: Column(
            children: [
                customFormField.field(
                    question: "Name",
                    canBeNull: false,
                    formKey: key,
                    onSavedCallback: (String val)=>_name=val,
                ),
                customFormField.field(
                    question: "Email",
                    canBeNull: false,
                    formKey: key,
                    onSavedCallback: (String val)=>_email=val,
                ),
                customFormField.field(
                    question: "Age",
                    canBeNull: false,
                    formKey: key,
                    onSavedCallback: (String val)=>_age=val,
                ),
                ]
            )
        );
    }
}

All customizable parameters

String question- Required parameter to specify the question to be asked.
bool canBeNull- Required parameter to specify if entered text can be empty.
Function onSavedCallback- Required callback parameter defining the behavious of form Field when it is saved using key.currentState.save().
GlobalKey<FormState> formKey- Required GlobalKey<FormState> key of the form that this form field is a part of.
double fieldTextFontSize- Optional parameter to declare size of text inside the field.
String initialValue- Optional parameter to declare a pre written value.
double verticalTextPadding- Optional parameter to declare the vertical Content padding inside the field.
double horizontalTextPadding- Optional parameter to declare the horizontal Content padding inside the field.
Icon icon- Optional Icon to be displayed at the end of the field.
double borderRadius- Optional parameter to declare the border radius of the field.
TextStyle labelTextStyle- Optional parameter to declare the TextStyle of the label text.

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Publisher

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A customizable and elegant form field

Repository (GitHub)
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Documentation

API reference

License

Apache-2.0 (license)

Dependencies

flutter

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