React Native - Expo - 本地计划通知一次性发送多个通知而不是Android上的单个通知

问题描述 投票:0回答:1

我正在尝试每小时创建一次带有通知功能的水提醒应用程序。我已经使用scheduleLocalNotificationAsync实现了通知。我的实现在IOS中按预期工作,但在Android中打开应用程序时,应用程序同时发送12个通知,而不是在预定时间逐个发送。

componentDidMount = () => {
  this._sendNotifications();
};

_sendNotifications = async () => {
  // Not to create duplicated notifications first cancel all notifications
  await Notifications.cancelAllScheduledNotificationsAsync();

// beginning of notification part
const localnotification = {
  title: 'Water Reminder',
  body: "Don't forget to drink water!",
  android: {
    sound: true,
  },
  ios: {
    sound: true,
  },
};

// get the current date
let currentDate = Date.now();
currentDate = new Date(currentDate);

// get the day, month and year from current date to create time to schedule
let year = currentDate.getFullYear();
let month = currentDate.getMonth();
let date = currentDate.getDate();

// then create unix epoch number for eact date with number from notification section
// then we call notification function with each timestamp (not1)
if (this.state.switchStatus === false) {
  await Notifications.cancelAllScheduledNotificationsAsync();
} else {
  // Notification for nine
  if (this.state.otherSwitchStatus.nine === true) {
    let not0 = new Date(year, month, date, 9);
    not0 = Date.parse(not0);
    const schedulingOptions0 = { time: not0, repeat: 'day' };
    // call the function to send notification at 9:00
    await Notifications.scheduleLocalNotificationAsync(localnotification, schedulingOptions0);
  }

  // Notification for ten
  if (this.state.otherSwitchStatus.ten === true) {
    let not1 = new Date(year, month, date, 10);
    not1 = Date.parse(not1);
    const schedulingOptions1 = { time: not1, repeat: 'day' };
    // call the function to send notification at 10:00
    await Notifications.scheduleLocalNotificationAsync(localnotification, schedulingOptions1);
  }
}
react-native notifications react-native-android expo
1个回答
0
投票

我想我明白代码发生了什么。

因为你可以在我的代码中看到,与当天的当前时间无关,我调用scheduleLocalNotificationAsync 15次(从09:00到23:00,每日重复选项)。但是,当我在12:40打开通知屏幕时,我会立即收到4个通知(每个09:00,10:00,11:00和12:00)。

我猜expo立即调用通知功能4次。这不是ios的情况,但它发生在Android中。我想它需要在世博方面修复。

在那之前,我通过检查当前小时并将其与预定时间进行比较来解决问题,如果通过,我将在明天安排。

let hour = currentDate.getHours();
// I changed the code below
// let not0 = new Date(year, month, date, 9) 
// to this
let not0 = new Date(year, month, hour > 9 ? date + 1 : date, 9);

我还创建了一个问题expo github。 https://github.com/expo/expo/issues/3946

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