我试图使用setState方法来更新状态，但是每当我执行函数时，一旦到达setState方法，一切都停止了。但是，所有代码直到函数工作。

import React, { Component } from 'react';
import { useState } from 'react';
import { AppRegistry, Text, View, StyleSheet, Image, TextInput, ImageBackground, TouchableHighlight, Alert, Dimensions, ScrollView, ActivityIndicator} from 'react-native';
import { SelectList } from 'react-native-dropdown-select-list';
import { MultipleSelectList } from 'react-native-dropdown-select-list';

import Constants from 'expo-constants';

const App = () => {

  const [selected, setSelected] = React.useState("");
  
  
  const data = [
      {key:'1', value:'Mobiles', disabled:true},
      {key:'2', value:'Appliances'},
      {key:'3', value:'Cameras'},
      {key:'4', value:'Computers', disabled:true},
      {key:'5', value:'Vegetables'},
      {key:'6', value:'Diary Products'},
      {key:'7', value:'Drinks'},
  ]

  let deviceHeight = Dimensions.get('window').height;
  let deviceWidth = Dimensions.get('window').width;

  const state = {
        titleScreen: 'block',
        createAccountScreen: 'none',
        hubScreen: 'none',
        deliveryScreen: 'none',
        notesScreen: 'none',
        tutoringScreen: 'none',
        profileScreen: 'none',
        usernameLogin: '',
        passwordLogin: '',
        initialState: 0,
    }
loggedIn = () => {
        console.log('Test 1')
        this.setState({
          titleScreen: 'none',
          createAccountScreen: 'block',
          hubScreen: 'none',
          deliveryScreen: 'none',
          notesScreen: 'none',
          tutoringScreen: 'none',
          profileScreen: 'none',
        })
        console.log('Test 2');
        
    }

我在网上研究了可能的解决方案，并试图使用箭头函数，但这并没有解决我的问题。我还将短语记录到控制台，以查看调用函数时是否发生了任何事情，并发现函数一传递方法就停止了。