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Fireship 에서 제공하는 함수들

These functions are provided to be used anywhere in the code as needed.

에러 표시 함수

주로 아래의 두가지 방식으로 에러를 화면에 표시 할 수 있다.

  • error 함수는 showDialog 를 이용해서, ErrorDialog 를 화면에 에러를 표시한다.
  • errorToasttoast 를 이용해서, 화면에 에러를 표시한다.

toast

Toast can be used to show a snackbar with a message.

toast(context: context, message: 'Hello User.');

Parameters:

  • context
    • required BuildContext
    • the build context of the current widget
  • title
    • String
    • title text of the snackbar
  • message
    • required String
    • message to show as text
  • icon
    • Icon
    • The icon to add in the snackbar
  • duration
    • Duration
    • how long does the snackbar shows?
    • default: const Duration(seconds: 8)
  • onTap
    • Function(Function)
    • on tap function
  • error
    • bool
    • is it an error message?
  • hideCloseButton
    • bool
    • default: false
  • backgroundColor
    • Color
  • foregroundColor
    • Color
  • runSpacing
    • double
    • default: 12
    • spacing between the icon and the message

알림 다이얼로그 - AlertDialog

커스텀 디자인을 할 수 있다.

FireFlutterService.instance.init(
    cloudFunctionRegion: 'asia-southeast1',
    globalContext: () =>
        router.routerDelegate.navigatorKey.currentContext!,
    alertDialog: ({
      required BuildContext context,
      required String? title,
      required String message,
    }) {
      return showDialog<void>(
        context: globalContext,
        builder: (context) => RohaAlertDialog(
          title: title,
          message: message,
        ),
      );
    },
  );


import 'package:fireflutter/fireflutter.dart';
import 'package:flutter/material.dart';
import 'package:roha/font_awesome/lib/font_awesome_flutter.dart';
import 'package:roha/global.dart';

class RohaAlertDialog extends StatelessWidget {
  const RohaAlertDialog({
    super.key,
    this.title,
    required this.message,
  });

  final String? title;
  final String message;

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      backgroundColor: Colors.transparent,
      shadowColor: Colors.transparent,
      surfaceTintColor: Colors.transparent,
      content: Stack(
        children: [
          Container(
            margin: const EdgeInsets.only(top: 20),
            padding: const EdgeInsets.all(8),
            width: double.infinity,
            decoration: BoxDecoration(
              color: context.colorScheme.background,
              border: Border.all(
                color: Colors.white,
                width: 1.8,
              ),
              borderRadius: BorderRadius.circular(24),
            ),
            child: Container(
              color: Colors.white,
              child: Padding(
                padding: const EdgeInsets.fromLTRB(24, 16, 24, 16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisAlignment: MainAxisAlignment.center,
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    if (title != null)
                      Text(
                        title!,
                        style: context.titleMedium,
                      ),
                    spaceSm,
                    Text(
                      message,
                      style: context.labelMedium,
                    ),
                    Row(
                      children: [
                        const Spacer(),
                        TextButton(
                          onPressed: () => Navigator.pop(
                            context,
                          ),
                          child: Text(T.ok.tr),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ),
          Positioned(
            left: 24,
            child: Container(
              height: 43,
              width: 43,
              decoration: BoxDecoration(
                color: Colors.white,
                border: Border.all(
                  color: context.colorScheme.background,
                  width: 1.8,
                ),
                borderRadius: BorderRadius.circular(25),
              ),
              child: Center(
                child: FaIcon(
                  title == 'chatUsageGuide'.tr
                      ? FontAwesomeIcons.solidMessageBot
                      : FontAwesomeIcons.solidCircleExclamation,
                  color: context.colorScheme.onBackground,
                  size: 22,
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }
}

확인 다이얼로그 - Confirm Dialog

The confirm is a prompt that will let the user choose from yes or no.

final re = await confirm(
    context: context,
    title: 'Delete Account',
    message: 'Are you sure you want to delete your account?'
);

The re in the example will be a nullable bool. If re is true means user chooses yes. If false means user chooses no. If null means neither user chooses yes nor no.

Parameters:

  • [required] BuildContext context
  • [required] String title
    • title of the message
  • [required] String message
    • Add the question or confirmation message here.

아래와 같이 커스터마이징을 할 수 있다.

/// Dialog 커스텀 설정
FireFlutterService.instance.init(
  confirmDialog: ({
    required BuildContext context,
    required String? title,
    required String message,
  }) async {
    return await showDialog<bool?>(
      context: context,
      builder: (context) => SilverConfirmDialog(
        title: title,
        message: message,
      ),
    );
  },
);
/// Dialog UI 디자인
import 'package:flutter/material.dart';
import 'package:silvers/font_awesome/lib/font_awesome_flutter.dart';
import 'package:silvers/global.dart';

class SilverConfirmDialog extends StatelessWidget {
  const SilverConfirmDialog({
    super.key,
    this.title,
    required this.message,
  });

  final String? title;
  final String message;

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      backgroundColor: Colors.transparent,
      shadowColor: Colors.transparent,
      surfaceTintColor: Colors.transparent,
      content: Stack(
        children: [
          Container(
            margin: const EdgeInsets.only(top: 20),
            padding: const EdgeInsets.all(8),
            width: double.infinity,
            decoration: BoxDecoration(
              color: context.onPrimary,
              border: Border.all(
                color: context.colorScheme.primary,
                width: 1.8,
              ),
              borderRadius: BorderRadius.circular(24),
            ),
            child: Container(
              color: context.colorScheme.primaryContainer.withAlpha(50),
              child: Padding(
                padding: const EdgeInsets.fromLTRB(24, 30, 24, 16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisAlignment: MainAxisAlignment.center,
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    if (title != null)
                      Text(
                        title!,
                        style: context.titleMedium,
                      ),
                    const SizedBox(height: 8),
                    Text(
                      message,
                      style: context.labelSmall,
                    ),
                    Row(
                      children: [
                        const Spacer(),
                        TextButton(
                          onPressed: () => Navigator.pop(context, false),
                          child: const Text('거절'),
                        ),
                        TextButton(
                          onPressed: () => Navigator.pop(context, true),
                          child: const Text('확인'),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ),
          Positioned(
            left: 20,
            child: Container(
              height: 42,
              width: 42,
              decoration: BoxDecoration(
                color: context.colorScheme.primaryContainer,
                border: Border.all(
                  color: context.colorScheme.primary,
                  width: 1.8,
                ),
                borderRadius: BorderRadius.circular(16),
              ),
              child: Center(
                child: FaIcon(
                  FontAwesomeIcons.exclamation,
                  color: context.colorScheme.primary,
                  size: 20,
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }
}

/// 호출하기
TextButton(
  onPressed: () async {
    final re = await confirm(
        context: context,
        title: '확인 또는 거절',
        message: '확인 또는 거절을 설명....');
    print("confirm dialog closed with: $re");
  },
  child: const Text('Confirm Dialog'),
);

에러 다이얼로그 표시

아래와 같이 표시 할 수 있다.

return TextButton(
    onPressed: () async {
    await error(
        context: context, title: '에러 제목', message: '에러를 설명할 메시지...');
    print("error dialog closed");
    },
    child: const Text('Error Dialog'),
);

아래와 같이 커스텀 디자인을 할 수 있다.

FireFlutterService.instance.init(
  errorDialog: ({
    required BuildContext context,
    required String? title,
    required String message,
  }) async {
    return await showDialog<bool?>(
      context: globalContext,
      builder: (context) => SilverErrorDialog(
        title: title,
        message: message,
      ),
    );
  },
);


import 'package:flutter/material.dart';
import 'package:silvers/font_awesome/lib/font_awesome_flutter.dart';
import 'package:silvers/global.dart';

class SilverErrorDialog extends StatelessWidget {
  const SilverErrorDialog({
    super.key,
    this.title,
    required this.message,
  });

  final String? title;
  final String message;

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      backgroundColor: Colors.transparent,
      shadowColor: Colors.transparent,
      surfaceTintColor: Colors.transparent,
      content: Stack(
        children: [
          Container(
            margin: const EdgeInsets.only(top: 20),
            padding: const EdgeInsets.all(8),
            width: double.infinity,
            decoration: BoxDecoration(
              color: context.onPrimary,
              border: Border.all(
                color: context.colorScheme.error,
                width: 1.8,
              ),
              borderRadius: BorderRadius.circular(24),
            ),
            child: Container(
              color: context.colorScheme.errorContainer.withAlpha(50),
              child: Padding(
                padding: const EdgeInsets.fromLTRB(24, 30, 24, 16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisAlignment: MainAxisAlignment.center,
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    if (title != null)
                      Text(
                        title!,
                        style: context.titleMedium,
                      ),
                    const SizedBox(height: 8),
                    Text(
                      message,
                      style: context.labelSmall,
                    ),
                    Row(
                      children: [
                        const Spacer(),
                        TextButton(
                          onPressed: () => Navigator.pop(context, true),
                          child: const Text('확인'),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ),
          Positioned(
            left: 20,
            child: Container(
              height: 42,
              width: 42,
              decoration: BoxDecoration(
                color: context.colorScheme.errorContainer,
                border: Border.all(
                  color: context.colorScheme.error,
                  width: 1.8,
                ),
                borderRadius: BorderRadius.circular(16),
              ),
              child: Center(
                child: FaIcon(
                  FontAwesomeIcons.exclamation,
                  color: context.colorScheme.error,
                  size: 20,
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }
}

입력 박스 - Input Dialog

The input function can be used to ask for an input from user.

final re = await input(
    context: context,
    title: 'Name',
    subtitle: 'Enter your lovely name',
    hintText: 'Last Name, First Name',
);

Parameters:

  • [required] BuildContext context
  • [required] String title
    • The title of the prompt
  • String subtitle
    • The subtitle or additional info for input box
  • [required] String hintText
    • hintText for the input box
  • String initialValue
    • the default input value

InputDialog 도 ErrorDialog 처럼 커스텀 디자인을 할 수 있다.

FireFlutterService.instance.init(
    cloudFunctionRegion: 'asia-southeast1',
    globalContext: () =>
        router.routerDelegate.navigatorKey.currentContext!,
    inputDialog: ({
      required BuildContext context,
      required String title,
      required String? subtitle,
      required String hintText,
      required String? initialValue,
      required int? minLines,
      required int? maxLines,
    }) async {
      return await showDialog<String?>(
          context: globalContext,
          builder: (context) => RohaInputDialog(
                title: title,
                subtitle: subtitle,
                hintText: hintText,
                minLines: minLines,
                maxLines: maxLines,
                initialValue: initialValue,
              ));
    });


import 'package:fireflutter/fireflutter.dart';
import 'package:flutter/material.dart';
import 'package:roha/font_awesome/lib/font_awesome_flutter.dart';
import 'package:roha/global.dart';

class RohaInputDialog extends StatelessWidget {
  const RohaInputDialog(
      {super.key,
      required this.title,
      required this.subtitle,
      required this.hintText,
      required this.minLines,
      required this.maxLines,
      required this.initialValue});

  final String title;
  final String? subtitle;
  final String hintText;
  final int? minLines;
  final int? maxLines;
  final String? initialValue;

  @override
  Widget build(BuildContext context) {
    final controller = TextEditingController(text: initialValue);

    return AlertDialog(
      backgroundColor: Colors.transparent,
      shadowColor: Colors.transparent,
      surfaceTintColor: Colors.transparent,
      content: Stack(
        children: [
          Container(
            margin: const EdgeInsets.only(top: 20),
            padding: const EdgeInsets.all(8),
            width: double.infinity,
            decoration: BoxDecoration(
              color: context.colorScheme.background,
              border: Border.all(
                color: Colors.white,
                width: 1.8,
              ),
              borderRadius: BorderRadius.circular(24),
            ),
            child: Padding(
              padding: const EdgeInsets.fromLTRB(24, 16, 24, 16),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: [
                  Text(
                    title,
                    style: Theme.of(context).textTheme.titleMedium,
                  ),
                  spaceSm,
                  ...[
                    Text(
                      subtitle!,
                      style: context.labelMedium,
                    ),
                    spaceSm,
                  ],
                  TextField(
                    controller: controller,
                    decoration: InputDecoration(
                      hintText: hintText,
                    ),
                    minLines: minLines,
                    maxLines: maxLines,
                  ),
                  spaceSm,
                  Row(
                    mainAxisAlignment: MainAxisAlignment.end,
                    children: [
                      TextButton(
                        onPressed: () {
                          if (controller.text.isNotEmpty) {
                            Navigator.pop(context, controller.text);
                          }
                        },
                        child: Text(T.ok.tr),
                      ),
                      TextButton(
                        onPressed: () => Navigator.pop(context),
                        child: Text(T.cancel.tr),
                      ),
                    ],
                  )
                ],
              ),
            ),
          ),
          Positioned(
            left: 24,
            child: Container(
              height: 43,
              width: 43,
              decoration: BoxDecoration(
                color: Colors.white,
                border: Border.all(
                  color: context.colorScheme.background,
                  width: 1.8,
                ),
                borderRadius: BorderRadius.circular(25),
              ),
              child: Center(
                child: FaIcon(
                  FontAwesomeIcons.solidCircleExclamation,
                  color: context.colorScheme.error,
                  size: 24,
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }
}

로케일 - 언어

아래와 같이 언어 정보를 가져 올 수 있다. currentLocaledevicelocaleDevicelocale.currentLocale 을 짧게 표현한 것으로 현재 핸드폰의 언어를 가져온다. preferredLanguages 는 핸드폰에 설정된(추가된) 언어 목록을 가져온다.

참고로, Devicelocale.currentLocaleDevicelocale.preferredLanguagesen-PH 과 같이 로케일 전체 문자열을 리턴하지만 currentLocalepreferredLanguagesen 과 같이 두 글자 언어 코드만 리턴한다.

(() async {
  final locale = await currentLocale;
  print('locale: $locale');
  final locales = await preferredLanguages;
  print('locales: $locales');
})();

결과

locale: en
locales: [en, ko]