Cara Membuat Stepper Widget di Flutter

Azhar Rivaldi    11/25/2024    Tutorial Flutter    Comment   

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Cara Membuat Stepper Widget di Flutter

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Berikut ini source code nya:

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        useMaterial3: false,
        primarySwatch: Colors.green,
      ),
      home: const HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  const HomePage({super.key});

  @override
  HomePageState createState() => HomePageState();
}

class HomePageState extends State {

  int currentStep = 0;
  bool isVerticalStepper = true;

  stepTapped(int step) {
    setState(() => currentStep = step);
  }

  stepContinue() {
    currentStep < 2 ? setState(() => currentStep += 1) : null;
  }

  stepCancel() {
    currentStep > 0 ? setState(() => currentStep -= 1) : null;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Stepper Flutter'),
      ),
      body: Column(
        children: [
          SwitchListTile(
              title: const Text('Switch Stepper'),
              subtitle: const Text('vertical/horizontal direction'),
              value: isVerticalStepper,
              onChanged: (_) {
                setState(() {
                  isVerticalStepper = !isVerticalStepper;
                });
              }),
          const Divider(
            thickness: 2,
            height: 30,
          ),
          Expanded(
            child: Stepper(
              type: isVerticalStepper
                  ? StepperType.vertical
                  : StepperType.horizontal,
              physics: const ScrollPhysics(),
              currentStep: currentStep,
              onStepTapped: (step) => stepTapped(step),
              controlsBuilder: (context, _) {
                return Row(
                  children: [
                    TextButton(
                      onPressed: () {
                        stepContinue();
                      },
                      child: const Text(
                        'Berikutnya',
                        style:
                        TextStyle(color: Colors.green),
                      ),
                    ),
                    TextButton(
                      onPressed: () {
                        stepCancel();
                      },
                      child: const Text(
                        'Batal',
                        style:
                        TextStyle(color: Colors.grey),
                      ),
                    ),
                  ],
                );
              },
              steps: [
                Step(
                  title: const Text('Nama'),
                  content: Column(
                    children: [
                      TextFormField(
                        decoration:
                            const InputDecoration(
                                labelText: 'Nama Anda'
                            ),
                      ),
                    ],
                  ),
                  isActive: currentStep >= 0,
                  state: currentStep >= 0
                      ? StepState.complete
                      : StepState.disabled,
                ),
                Step(
                  title: const Text('Telp'),
                  content: Column(
                    children: [
                      TextFormField(
                        decoration: const InputDecoration(
                            labelText: 'No. Telp'
                        ),
                      ),
                    ],
                  ),
                  isActive: currentStep >= 0,
                  state: currentStep >= 1
                      ? StepState.complete
                      : StepState.disabled,
                ),
                Step(
                  title: const Text('Alamat'),
                  content: Column(
                    children: [
                      TextFormField(
                        decoration: const InputDecoration(
                            labelText: 'Alamat Lengkap'
                        ),
                      ),
                    ],
                  ),
                  isActive: currentStep >= 0,
                  state: currentStep >= 2
                      ? StepState.complete
                      : StepState.disabled,
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}

Untuk Output-nya nanti seperti ini:

Hasil Stepper Vertical

Hasil Stepper Horizontal

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