crazycharge-app/component/registrationMultiStepForm/formComponent/form.tsx

import { useState } from 'react';
import { View, Text, StyleSheet, Pressable, TouchableWithoutFeedback, Keyboard } from 'react-native';
import Verification from './formPages/verification';
import BasicInformation from './formPages/basicInformation';
import CarInformation from './formPages/carInformation';
import PaginationIndicator from '../../global/PaginationIndicator';
import CreateWallet from './formPages/createWallet';
import FinishSignUp from './formPages/finishSignUp';
import LoginPage from './formPages/loginPage';
import { KeyboardAwareScrollView } from 'react-native-keyboard-aware-scroll-view';
import ChooseCarBrand from './formPages/chooseCarPage/carBrand';
import ChooseCarSeries from './formPages/chooseCarPage/carSeries';
import ChooseCarModel from './formPages/chooseCarPage/carModel';
import ForgetPasswordForm from '../../forgetPasswordMultiStepForm/forgetPasswordForm';

import BindingMultiStepForm from '../../bindingMultiStepForm/bindingMultiStepForm';
import { useTranslation } from '../../../util/hooks/useTranslation';

type FormProps = {};
const Form: React.FC<FormProps> = ({}) => {
    const { t } = useTranslation(); // 使用翻译钩子
    const [screen, setScreen] = useState<number>(0);
    const FormTitle = [
        '', 
        t('register.phone_verification'), 
        t('register.basic_info'), 
        t('register.basic_info'), 
        t('register.create_wallet')
    ];

    const ScreenDisplay = () => {
        switch (screen) {
            case 0:
                return (
                    <LoginPage
                        goToNextPage={goToNextPage}
                        goToForgetPassWordPage={goToForgetPassWordPage}
                        goToBindingPhoneNumberPage={goToBindingPhoneNumberPage}
                    />
                );
            case 1:
                return <Verification setScreen={setScreen} />;
            case 2:
                return <BasicInformation goToNextPage={goToNextPage} />;
            case 3:
                return <CreateWallet goToNextPage={goToNextPage} />;
            case 4:
                return <FinishSignUp />;
            case 6:
                return (
                    <ChooseCarBrand
                        goToCarInformation={goToCarInformation}
                        goToChooseCarSeriesPage={goToChooseCarSeriesPage}
                    />
                );
            case 7:
                return (
                    <ChooseCarSeries
                        goToChooseCarBrandPage={goToChooseCarBrandPage}
                        goToChooseCarModelPage={goToChooseCarModelPage}
                    />
                );

            case 8:
                return (
                    <ChooseCarModel
                        goToChooseCarSeriesPage={goToChooseCarSeriesPage}
                        goToCarInformation={goToCarInformation}
                    />
                );
            case 9:
                return <ForgetPasswordForm />;

            case 11:
                return <BindingMultiStepForm />;
            default:
                return <></>;
        }
    };

    const goToPreviousPage = () => {
        setScreen((prevState) => {
            if (prevState > 0) {
                return prevState - 1;
            } else {
                return prevState;
            }
        });
    };

    const goToNextPage = () => {
        setScreen((prevState) => {
            if (prevState < 6) {
                return prevState + 1;
            } else {
                return prevState;
            }
        });
    };
    
    const goToChooseCarBrandPage = () => {
        setScreen((prevState) => {
            return 6;
        });
    };

    const goToChooseCarSeriesPage = () => {
        setScreen((prevState) => {
            return 7;
        });
    };
    
    const goToChooseCarModelPage = () => {
        setScreen((prevState) => {
            return 8;
        });
    };

    const goToCarInformation = () => {
        setScreen((prevState) => {
            return 4;
        });
    };

    const goToForgetPassWordPage = () => {
        setScreen((prevState) => {
            return 9;
        });
    };

    const goToBindingPhoneNumberPage = () => {
        setScreen((prevState) => {
            return 11;
        });
    };
    
    return (
        <KeyboardAwareScrollView
            enableOnAndroid={true}
            // resetScrollToCoords={{ x: 0, y: 0 }}
        >
            {/* not showing title and pagination on the first and last page */}
            {screen == 0 ||
                (screen < 4 && (
                    //dismiss keyboard when user click outside of the input field to improve user experience
                    <TouchableWithoutFeedback onPress={() => Keyboard.dismiss()}>
                        <View style={styles.topContainer}>
                            <Text style={styles.text}>{FormTitle[screen]}</Text>
                            <View style={styles.breakline} />
                            <View style={styles.previouspageAndPaginationWrapper}>
                                <Pressable onPress={goToPreviousPage}>
                                    <Text style={{ color: '#888888' }}>{t('common.previous')}</Text>
                                </Pressable>
                                <PaginationIndicator totalPages={FormTitle.length} currentPage={screen} />
                                <Pressable disabled={true} onPress={goToNextPage}>
                                    <Text
                                        style={{
                                            color: '#888888',
                                            opacity: 0
                                        }}
                                    >{t('common.next')}</Text>
                                </Pressable>
                            </View>
                        </View>
                    </TouchableWithoutFeedback>
                ))}

            <View style={styles.bottomContainer}>{ScreenDisplay()}</View>
        </KeyboardAwareScrollView>
    );
};

const styles = StyleSheet.create({
    topContainer: {
        flex: 1,
        alignItems: 'center',
        justifyContent: 'center',
        paddingBottom: '20%',
        paddingTop: '15%'
    },
    previouspageAndPaginationWrapper: {
        display: 'flex',
        width: '100%',
        flexDirection: 'row',
        justifyContent: 'space-between',
        alignItems: 'center',
        paddingHorizontal: 25
    },
    bottomContainer: { flex: 2.5 },
    breakline: {
        width: 24,
        height: 1,
        backgroundColor: '#000000',
        marginVertical: 17
    },
    text: { fontSize: 24, fontWeight: '300' }
});

export default Form;