Flutter boilerplate

Flutter boilerplate is a base setup that can be used for building all new flutter applications.

Folder Structure

• Components
  • common
  • all other screen components
• Helpers
  • helpers required for purpose
• Layout
  • Provides layout components like bottom navigation wrapper
• Screens
  • All screens components will lie here
• Theme
  • All theme data lies here

Features

1. Routing
2. Authentication
3. Custom components
4. State management

Basic Layout

Flutter boilerplate comes with basic layout which supports scaffold along with bottom navigation bar you can pass a argument to hide navigation

      getPages: getPageWrapper([
        PageWrapper(path: '/login', child: Login(), navbar: false),
        PageWrapper(path: '/home', child: const Home()),
        PageWrapper(path: '/content', child: const Content()),
        PageWrapper(path: '/calendar', child: const Calendar()),
        PageWrapper(path: '/profile', child: const Account()),
        PageWrapper(path: "/otp", child: const OTP(), navbar: false)
      ]),

Components

VStack

Wrapper around Column provides spacing property additionally

VStack(
  spacing: 8.0,
  crossAxisAlignment: CrossAxisAlignment.start,
  children: [
            const Text(
              "Heading 1",
              style: TextStyles.h1,
            ),
            const Text(
              "Heading 2",
              style: TextStyles.h2,
            )])

HStack

Wrapper around Row provides spacing property additionally

HStack(
  spacing: 8.0,
  crossAxisAlignment: CrossAxisAlignment.start,
  children: [
            const Text(
              "Heading 1",
              style: TextStyles.h1,
            ),
            const Text(
              "Heading 2",
              style: TextStyles.h2,
            )])

BorderedImage

Wrapper Image component Row provides border radius property additionally

BorderedImage(
        width: double.infinity,
        height: 400,
        fit: BoxFit.cover,
        borderRadius: 4.0,
        url:"url")

CustomForm

Wrapper around the flutter form for making form handling easy. Instead of writing flutter code everytime you can define your form in List of Maps which contains all the form details like placeholder, validator, helperText CustomForm will handle everything for you.

Supports TextInput, DateInput and Checkbox now

List<Map<String, dynamic>> otpForm = [
  {
    "type": FormFieldType.text,
    "name": "otp",
    "placeholder": "OTP",
    "validator": ValidationBuilder(requiredMessage: "OTP is required").build(),
    "helperText": "OTP is 12345 😃",
    "autocorrect": false,
    "obscureText": true,
  }
];

class OTPForm extends StatelessWidget {
  OTPForm({Key? key}) : super(key: key);

  final login = Get.find<AuthController>().login;
  @override
  Widget build(BuildContext context) {
    return CustomForm(
      fields: otpForm,
      onSubmit: (value) {
        print(value); // All form field values in the form of Map<String, dynamic>
        if (value["otp"] == "12345") {
          login();
          Get.toNamed('/home');
        }
      },
      submitButtonChild: const Text(
        "Login",
        style: TextStyles.buttonText1,
      ),
    );
  }
}

Row

Sometimes you need to render multiple form fields in a row you can do that using the type FormFieldType.row

[
  {
    "type": FormFieldType.row,
    "fields": [
      {
        "type": FormFieldType.text,
        "name": "principleAmount",
        "placeholder": "Principle",
      },
      {
        "type": FormFieldType.text,
        "name": "interestRate",
        "placeholder": "Interest rate",
      },
      {
        "type": FormFieldType.checkbox,
        "name": "selected",
        "title": "Selected",
      },
    ]
  },
];

Theme elements

1. Custom Colors
2. Font sizes
3. Spacing sizes / insets
4. Screen sizes

Libraries and packages used

1. getx for state management and routing
2. form_validator for validating the forms
3. date_time_picker for date input