我無法對存儲在反應掛鉤狀態中的對象數組進行排序。此數組在排序后提供給平面列表。const { notifications } = useContext(MainContext);const [sortedNotifications, setSortedNotifications] = useState([]);useEffect(() => {    setSortedNotifications(        [...notifications].concat([]).sort(function(x, y){            return new Date(y.created_at).getTime() - new Date(x.created_at).getTime();        })    )}, [notifications]);return <View style={{ flex: 1,  backgroundColor: "white", }}>    {notifications !== null && notifications.length > 0 ? <FlatList         vertical        contentContainerStyle={{ paddingRight: 20, paddingLeft: 20, paddingBottom: 20, paddingTop: 20}}        showsVerticalScrollIndicator={false}        style = {styles.flatListStyle}        data = {sortedNotifications}         keyExtractor = {(item,i) => `key-${item.title}-${i}`}        renderItem = {({ item }) => {        return <TouchableOpacity activeOpacity={0.8} style={styles.viewStyle} onPress={() => props.navigation.navigate("Notification", { n: item })}>                <Text style={styles.textStyle}>{Capitalize(item.title)}</Text>                <Text style={styles.text2Style}>Received {moment.utc(item.created_at).fromNow()}</Text>        </TouchableOpacity>    }}></FlatList> : <View></View>}</View>物體的位置沒有變化。任何幫助將不勝感激