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SiriKit與Siri Shortcuts的區別

在iOS12中，蘋果進一步擴展了Siri的功能，推出了Siri Shortcuts。Siri Shortcuts允許用戶通過自定義短語觸發預設的操作，提升了用戶的便利性和效率。雖然SiriKit和Siri Shortcuts都旨在提高用戶與應用的交互體驗，但它們在實現和使用上存在明顯區別。

Siri Shortcuts的應用場景

Siri Shortcuts適用于那些需要快速執行的簡單任務，如播放特定的音樂曲目或下單購買咖啡。用戶可以通過設置一個簡單的短語來觸發這些操作，而不需要逐個打開應用并進行操作。與SiriKit相比，Siri Shortcuts更注重個性化和快捷性。

Siri Shortcuts示例

使用SiriKit開發消息發送功能

在實際應用開發中，SiriKit可以用于實現各種復雜的操作，例如通過語音命令發送消息。以下是一個使用SiriKit開發消息發送功能的示例。

創建Demo項目

首先，打開Xcode并創建一個名為MySiriKitDemo的新項目。此項目將用于展示如何使用SiriKit實現消息發送功能。在項目創建完成后，您可以通過Siri發送消息給好友。

創建Demo項目

添加Intent Extension

接下來，您需要在項目中添加一個Intent Extension。通過選擇File->New->Target，選擇Intents Extension，然后命名為MySirExtension。確保勾選Include UI Extension，以便后續添加交互界面。

添加Intent Extension

項目配置

在項目中配置名稱為聊天測試的Demo以便識別。打開MySirExtension下的Info.plist文件，確保IntentsSupported下的項不需要修改。對于不同的功能需求，如媒體播放或健身管理，需要相應地調整意圖類型。

項目配置

共享用戶信息的實現

為了處理Siri的數據，您需要在主項目中創建一個MyAccount.swift文件，并定義用戶相關的類。MyUser類用于表示好友對象，MyAccount類用于管理用戶賬戶。確保這些類同時被添加到主項目和Extension中，以實現數據共享。

import Intents

class MyUser {
    var name: String?
    var handle: String?

    init(name: String? = nil, handle: String? = nil) {
        self.name = name
        self.handle = handle
    }

    func toInPerson() -> INPerson {
        return INPerson(handle: handle!, displayName: name, contactIdentifier: name)
    }
}

class MyAccount {
    private static let instance = MyAccount()

    class func share() -> MyAccount {
        return MyAccount.instance
    }

    func contact(matchingName: String) -> [MyUser] {
        return [MyUser(name: matchingName, handle: NSStringFromClass(MySendMessageIntentHandler.classForCoder()))]
    }

    func send(message: String, to recipients: [INPerson]) -> INSendMessageIntentResponseCode {
        print("模擬發送消息：(message) 給 (recipients)")
        return .success
    }
}

處理Siri的數據

在處理Siri的數據時，您需要實現INSendMessageIntentHandling協議中的三個主要方法：Resolve、Confirm和Handle。通過這些方法，您可以解析Siri的請求、確認用戶權限并執行消息發送操作。

實現INSendMessageIntentHandling協議

在MySendMessageIntentHandler類中實現以下方法：

import UIKit
import Intents

class MySendMessageIntentHandler: NSObject, INSendMessageIntentHandling {
    // MARK: - INSendMessageIntentHandling

    func resolveRecipients(for intent: INSendMessageIntent, with completion: @escaping ([INSendMessageRecipientResolutionResult]) -> Void) {
        if let recipients = intent.recipients {

            if recipients.count == 0 {
                completion([INSendMessageRecipientResolutionResult.needsValue()])
                return
            }

            var resolutionResults = [INSendMessageRecipientResolutionResult]()
            for recipient in recipients {
                let matchingContacts = MyAccount.share().contact(matchingName: recipient.displayName)
                switch matchingContacts.count {
                case 2...Int.max:
                    let disambiguations = matchingContacts.map { $0.toInPerson() }
                    resolutionResults += [INSendMessageRecipientResolutionResult.disambiguation(with: disambiguations)]
                case 1:
                    let recipient = matchingContacts[0].toInPerson()
                    resolutionResults += [INSendMessageRecipientResolutionResult.success(with: recipient)]
                case 0:
                    resolutionResults += [INSendMessageRecipientResolutionResult.unsupported()]
                default:
                    break
                }
            }
            completion(resolutionResults)
        } else {
            completion([INSendMessageRecipientResolutionResult.needsValue()])
        }
    }

    func resolveContent(for intent: INSendMessageIntent, with completion: @escaping (INStringResolutionResult) -> Void) {
        if let text = intent.content, !text.isEmpty {
            completion(INStringResolutionResult.success(with: text))
        } else {
            completion(INStringResolutionResult.needsValue())
        }
    }

    func confirm(intent: INSendMessageIntent, completion: @escaping (INSendMessageIntentResponse) -> Void) {
        let userActivity = NSUserActivity(activityType: NSStringFromClass(INSendMessageIntent.self))
        let response = INSendMessageIntentResponse(code: .ready, userActivity: userActivity)
        completion(response)
    }

    func handle(intent: INSendMessageIntent, completion: @escaping (INSendMessageIntentResponse) -> Void) {
        if let content = intent.content, let recipients = intent.recipients {
            let userActivity = NSUserActivity(activityType: NSStringFromClass(INSendMessageIntent.self))
            let sendResult = MyAccount.share().send(message: content, to: recipients)
            completion(INSendMessageIntentResponse(code: sendResult, userActivity: userActivity))
        } else {
            let response = INSendMessageIntentResponse(code: .failure, userActivity: nil)
            completion(response)
        }
    }
}