本指南将演示如何在导出的 hyperPad 项目中添加应用内购买。继续操作前，请检查以下所有要求。

要求

你需要一台 Mac 电脑，用于导出项目并在导出的项目中添加应用内购买。
你需要在 Mac 上安装 cocoapods。如果尚未安装，请按照此处的说明操作。
你需要在 Mac 上安装 Terminal 应用。
你需要在 Mac 上安装一款文本编辑器应用。

操作步骤

使用文本编辑器，将 pod 'SwiftyStoreKit' 添加到导出项目 Podfile 文件的 pod 列表中。
在终端中运行 pod install。这可能需要一些时间，请耐心等待！
将 HPSwift.swift 的内容替换为以下文件


//
// HPSwift.swift
// hyperPad-Project
//
// Created by Hamed Saadat on 2019-08-07.
//

import Foundation
import SwiftyStoreKit

@objc class HPSwift: NSObject {
    fileprivate var _behaviours: HPBehaviours? = nil
    @objc var behaviours: HPBehaviours? {
        get {
            return _behaviours
        }

        set(behaviours) {_behaviours = behaviours

            SwiftyStoreKit.completeTransactions(atomically: true) { purchases in
                for purchase in purchases {
                    switch purchase.transaction.transactionState {
                    case .purchased, .restored:
                        if purchase.needsFinishTransaction {
                            // Deliver content from server, then:
                            SwiftyStoreKit.finishTransaction(purchase.transaction)
                        }
                        // Unlock content
                        behaviours?.broadcastValue(purchase.productId as NSString, withKey: "purchaseComplete")

                    case .failed, .purchasing, .deferred:
                        behaviours?.broadcastValue(purchase.productId as NSString, withKey: "purchaseError")
                        break // do nothing
                    @unknown default:
                        break
                    }
                }
            }

            behaviours?.addReceiveKey("restorePurchases", onReceive: { (receiveValue) in
                SwiftyStoreKit.restorePurchases(atomically: true) { results in
                    if results.restoreFailedPurchases.count > 0 {
                        behaviours?.broadcastValue("Restore Failed: \(results.restoreFailedPurchases)" as NSString, withKey: "purchaseError")
                    }
                    else if results.restoredPurchases.count > 0 {
                        results.restoredPurchases.forEach { (purchase) in
                            behaviours?.broadcastValue(purchase.productId as NSString, withKey: "purchaseComplete")
                        }
                    }
                    else {
                        print("Nothing to Restore")
                    }
                }
            })

            /*
             Add Behaviour functionality here
            */

            behaviours?.addReceiveKey("purchase", onReceive: { (recieveValue) in
                 // handle in app purchase logic! //
                    SwiftyStoreKit.purchaseProduct("INSERT_PURCHASE_IDENTIFIER_HERE_OR_USE_recieveValue", quantity: 1, atomically: true) { result in
                        switch result {
                        case .success(let purchase):
                            behaviours?.broadcastValue(purchase.productId as NSString, withKey: "purchaseComplete")
                        case .error(let error):
                            var message = ""
                            switch error.code {
                            case .unknown: message = "Unknown error. Please contact support"
                            case .clientInvalid: message = "Not allowed to make the payment"
                            case .paymentCancelled: break
                            case .paymentInvalid: message = "The purchase identifier was invalid"
                            case .paymentNotAllowed: message = "The device is not allowed to make the payment"
                            case .storeProductNotAvailable: message = "The product is not available in the current storefront"
                            case .cloudServicePermissionDenied: message = "Access to cloud service information is not allowed"
                            case .cloudServiceNetworkConnectionFailed: message = "Could not connect to the network"
                            case .cloudServiceRevoked: message = "User has revoked permission to use this cloud service"
                            default: message = ((error as NSError).localizedDescription)
                            }
                            behaviours?.broadcastValue(message as NSString, withKey: "purchaseFailed")
                        }
                    }
            })
        }
    }

}

注意事项

behaviours?.addReceiveKey("restorePurchases", onReceive: { (receiveValue) in
                // add your code here
            })

当你触发带有 restorePurchases 键的广播行为时，就会触发此代码。

behaviours?.broadcastValue(purchase.productId as NSString, withKey: "purchaseComplete")

购买完成后，将触发键为 purchaseComplete 的接收消息行为。INSERT_PURCHASE_IDENTIFIER_HERE_OR_USE_recieveValue 可以替换为你在 AppStoreConnect 中的购买项目标识符，或 receiveValue 参数。如果使用 receiveValue，请确保在广播行为中发送的是 App Store Connect 中的标识符。

在项目中添加应用内购买功能

注意事项