iOS如何设置闹钟并安排工作/通知 [英] iOS how to set Alarm and schedule work/notifications

问题描述

我基本上是iOS新手，我是android开发人员。但是现在我正在开发iOS应用，它只是android的iOS复制。让我告诉你我想要在应用程序中做什么：

Hi I am new to iOS basically I am android developer. But Right now I am working on iOS app,It is simply an iOS replica of android. Let me tell you about what I want in app:

我们的应用程序具有警报功能，该警报将提醒我们的客户在特定日期这个会议。例如，如果用户在上午9:00将警报设置为2019年1月1日，则必须在该日期和时间将该会议通知给用户。

Our app features alarm, that will remind our client that on a specific date you have this meeting. For example, if user sets alarm for 1-jan-2019 at time 9:00AM then on that day and time user must be notified of this meeting.

我读了很多书，发现在iOS中我们无法做到这一点，因为当应用程序在后台运行时，它无法运行其代码拥有？所以我有2个基本问题：

I have read alot and found that in iOS we can not do this since when app is in background it can not run code of his own? So I have 2 basic questions:

我想要什么：

1. 首先如何安排警报

1. First of all how to schedule an Alarm

如果设置了警报且应用程序在后台/终止，则如何生成通知以及当用户单击通知时他有特定的看法？

If alarm is set and app is in background/terminated then how to generate notification and when user click on notification take him to specific view?

我知道这是3个主要部分需要太多编码。但是我只想要方向。给我链接代码块。我正在使用xcode 9.2和swift 4.0。预先感谢...

I know these are 3 main and major part that required too much coding. But I just want directions. Give me link of chunks of code. I am using xcode 9.2 and swift 4.0. Thanks in advance ...

推荐答案

您必须安排本地通知，该通知现在可在 UNUserNotificationCenter中使用。

You many have to schedule local notification which is now available in UNUserNotificationCenter.

因此，

1. 用于计划a从您的应用本地通知，请遵循此 doc 。


2. 对于处理通知和与通知有关的操作，请遵循以下 doc 。

1. For Scheduling a Notification Locally from Your App, follow this doc.
2. For Handling Notifications and Notification-Related Actions, follow this doc.

要在 AppDelegate 或要处理 UNUserNotificationCenter 委托方法，添加以下代码：

To Handle Notifications in your AppDelegate or where you want to handle UNUserNotificationCenter delegate method, add below code:

class AppDelegate:NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate{

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {


    let center = UNUserNotificationCenter.current()
    center.delegate = self // Don't forgot to set delegate

    //To get permissions from user:
    let options: UNAuthorizationOptions = [.alert, .sound, .badge];
    center.requestAuthorization(options: options) {
        (granted, error) in
        if !granted {
            print("Something went wrong")
        }
    }

    return true
}
}

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