在expo中为android设备配置本地通知？

Question

我对react-native还是个新手，而且还在学习。我正在尝试为android设备配置本地通知，但它不起作用。在试图解决这个问题时，我了解到权限已经移出了expo，android的通知需要创建一个单独的对象才能使声音和振动工作。其他网站上的例子似乎也不起作用。(也许会有更新)。我已经尝试从新的"expo-permissions“导入”权限“，但仍然不起作用！请帮帮我！！

下面是我的代码：

import Notifications from 'expo';
import * as Permissions from 'expo-permissions';

async obtainNotificationPermission() {
        let permission = await Permissions.getAsync(Permissions.USER_FACING_NOTIFICATIONS)

        if (permission.status !== 'granted') {
            permission =await Permissions.askAsync(Permissions.USER_FACING_NOTIFICATION);
            console.log("Permission Status: "+permission);
            if (permission.status !== 'granted') {
                Alert.alert('Permission not granted to show notifications!')
            }
        }
        return permission;
    }

    async presentLocalNotification(date) {
        await this.obtainNotificationPermission();
        console.log("Permission Status: "+this.obtainNotificationPermission());
        Notifications.presentLocalNotificationAsync({
            title: 'Your Reservation',
            body: 'Reservation for '+ date + ' requested',
            ios: {
                sound: true
            },
            android: {
                sound: true,
                vibrate: true,
                color: '#512DA8'
            }
        });

    }

Answer 1

而不是这行

import Notifications from 'expo';

插入

import { Notifications } from 'expo';