Features

This package is a dynamic single text field allows for the dynamic creation of multiple text fields based on the developer's needs (similar to OTP/passcode inputs, but without the OTP/passcode functionality—only the UI is provided). You can create a list of SingleTextModel instances, each representing a single text field. Each SingleTextModel can be customized with values such as preset characters, and additional text displayed under the field. Each SingleTextModel accepts a single input character.

Getting started

Version Minimum Flutter SDK: 3.0.0

Tested Versioning:
Flutter SDK version: 3.24.5
Dart Version: 3.5.4

Usage

import 'package:dynamic_single_text_field/dynamic_single_text_field.dart';
import 'package:flutter/foundation.dart';
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,
      title: 'Sample Project',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(),
    );
  }
}

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

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final List<SingleTextModel> singleTextModelList1 = [];
  final List<SingleTextModel> singleTextModelList2 = [];
  final List<SingleTextModel> singleTextModelList3 = [];

  @override
  void initState() {
    /**
     * initializing three list with the SingleTextModel
     * */
    List.generate(
        7,
            (index) =>
            singleTextModelList1.add(SingleTextModel(
              singleText: "",
            )));
    List.generate(
        7,
            (index) =>
            singleTextModelList2.add(SingleTextModel(
                singleText: "",
                topLabelText: "top label $index",
                bottomLabelText: "bottom label $index")));
    List.generate(
        7,
            (index) =>
            singleTextModelList3.add(SingleTextModel(
                singleText: "",
                topLabelText: "top label $index",
                bottomLabelText: "bottom label $index")));
    super.initState();
  }

  InputBorder getInputBorder() =>
      const OutlineInputBorder(
        borderSide: BorderSide(
          color: Colors.green,
          width: 3,
        ),
        borderRadius: BorderRadius.all(
          Radius.circular(
            70,
          ),
        ),
      );

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: true,
      body: SingleChildScrollView(
        child: Column(
          children: [
            const SizedBox(
              height: 100,
            ),
            DynamicSingleTextField(
              singleTextModelList: singleTextModelList1,
              showLabelsType: ShowLabelsTypeEnum.hideLabelsType,
              inputBorder: getInputBorder(),
              singleDynamicListHeight: 70,
              topLabelMarginBottom: 20,
              bottomLabelMarginTop: 20,
              enableInputBorder: getInputBorder(),
              disableInputBorder: getInputBorder(),
              focusedInputBorder: getInputBorder(),
              textInputType: TextInputType.number,
              onChangeSingleText: (String value, int index) {
                if (kDebugMode) {
                  print("value: $value index: $index");
                }
              },
              onValidationBaseOnLength: () {
                if (kDebugMode) {
                  print("validated");
                }
              },
            ),
            const SizedBox(
              height: 100,
            ),
            DynamicSingleTextField(
              singleTextModelList: singleTextModelList2,
              showLabelsType: ShowLabelsTypeEnum.showBothLabelsType,
              inputBorder: getInputBorder(),
              topLabelMarginBottom: 20,
              bottomLabelMarginTop: 20,
              enableInputBorder: getInputBorder(),
              disableInputBorder: getInputBorder(),
              focusedInputBorder: getInputBorder(),
              textInputType: TextInputType.number,
              onChangeSingleText: (String value, int index) {
                if (kDebugMode) {
                  print("value: $value index: $index");
                }
              },
              onValidationBaseOnLength: () {
                if (kDebugMode) {
                  print("validated");
                }
              },
            ),
            const SizedBox(
              height: 100,
            ),
            DynamicSingleTextField(
              singleTextModelList: singleTextModelList3,
              showLabelsType: ShowLabelsTypeEnum.showBothLabelsType,
              inputBorder: getInputBorder(),
              topLabelMarginBottom: 20,
              bottomLabelMarginTop: 20,
              textInputType: TextInputType.text,
              onChangeSingleText: (String value, int index) {
                if (kDebugMode) {
                  print("value: $value index: $index");
                }
              },
              onSubmitSingleText: (String value) {
                if (kDebugMode) {
                  print("value: $value");
                }
              },
              onValidationBaseOnLength: () {
                if (kDebugMode) {
                  print("validated");
                }
              },
            ),
          ],
        ),
      ),
    );
  }
}

Additional information

Thank you for using my package, any feedback is welcome. You can report any bug, ask a question on package GitHub repository. https://github.com/NicosNicolaou16/dynamic_single_text_field/issues