我有一个成功实现了iOS的IAP介绍价格的集合，但是我对iOS方面是否需要任何额外代码来管理它感到困惑吗？如果是这样，需要什么？
好吧，如果要正确实现，实际上需要额外的代码。这是为了将特定的报价带给客户，对他的收获有清晰的了解。
iOS 12和13，您获得3种不同类型的订阅介绍价格：
- 免费试用
- 您去付款
- 付款
有关这三个的重要性以及订阅的简单且整体的视图，请参阅具有建议的UI
的自动可再生订阅Apple Doc出示您购买视图控制器时，您应该：
- 正确显示要约：例如：" 免费开始您的1个月免费审判，然后每月$ 1.99 "免费试用价格；
- 处理以下事实：用户过去已经使入门价格受益，因此显示" 订阅价格为$ 1.99/月"(继续以相同的示例(。这就需要您通过用户拥有的收据，并检查设置为true的" IS_TRIAL_PERIOD"或" IS_IN_INTRO_OFFER_PERIOD"(请参阅答案底部的我的代码(。 >
在我之前提到的Apple文档中，有许多"实际"屏幕显示出不同的用例。
我的班级处理每个产品的入门价格
/**
Receipt description
*/
public class LatestReceipt: CustomStringConvertible {
public var description: String {
let prefix = type(of: self)
return """
(prefix) expires (expiredDate?.compact(timeStyle: .medium) ?? "nil"):
(prefix) • product: (productID);
(prefix) • isEligible: (isEligible);
(prefix) • isActive: (isActive);
(prefix) • have been in free trial: (haveBeenInFreeTrialPeriod);
(prefix) • intro date: (introOfferPeriodDate?.compact(timeStyle: .medium) ?? "nil");
(prefix) • free trial period: (inFreeTrialPeriod).
"""
}
/// Related product ID
var productID = ""
/**
Tells whether the user is eligible for any introductory period
- Note: From the Apple Doc: You can use “is_in_intro_offer_period” value to determine if the user is eligible for introductory pricing. If a previous subscription period in the receipt has the value “true” for either the “is_trial_period” or “is_in_intro_offer_period” keys, the user is not eligible for a free trial or introductory price within that subscription group.
*/
public var isEligible = true
/// When did the user benefited the intro offer? Nil means never.
public var introOfferPeriodDate: Date? = nil
/// When did the user benefited the free trial? Nil means never.
public var freeTrialPeriodDate: Date? = nil
public var inFreeTrialPeriod = false
/// Tells whether the user benefited the free trial period in the past
public var haveBeenInFreeTrialPeriod = false
/// Is still active for today?
public var isActive = false
/// Last expired date
public var expiredDate: Date? = nil
// Latest receipt content
public var content = NSDictionary()
/**
Replaces the current receipt if the new one is more recent. And compute isActive and others propteries.
- Parameters:
- receipt: The new receipt to test.
*/
public func replaceIfMoreRecent(receipt: NSDictionary) {
// Replace receipt if more recent
if let ed = expiredDate {
// -- Expiring product (aka subscriptions): add only the most recent
guard let receiptExpiresDate = receipt["expires_date"] as? String,
let red = StoreKit.getDate(receiptExpiresDate) else {
print("(#function): *** Error unable to get receipt expiredDate or convert it to a Date(), skipped")
return
}
// This receipt is most recent than the currently stored? if, yes, replace
if red.isAfter(ed) {
content = receipt
expiredDate = red
// Is in trial?
if let tp = content["is_trial_period"] as? String {
inFreeTrialPeriod = tp == "true"
if inFreeTrialPeriod {
haveBeenInFreeTrialPeriod = true
}
}
// When was the intro?
if let intro = content["is_in_intro_offer_period"] as? String,
intro == "true" {
introOfferPeriodDate = red
}
let now = Date()
// Subscription still active today?
isActive = red.isAfterOrSame(now)
// Eligibility; check against PREVIOUS subscription period
if !isActive {
// You can use “is_in_intro_offer_period” value to determine if the user is eligible for introductory pricing. If a previous subscription period in the receipt has the value “true” for either the “is_trial_period” or “is_in_intro_offer_period” keys, the user is not eligible for a free trial or introductory price within that subscription group.
let benefitedFromIntroductoryPrice = introOfferPeriodDate != nil || haveBeenInFreeTrialPeriod
isEligible = !benefitedFromIntroductoryPrice
}
}
print("(#function): new (self)")
}
}
init(receipt: NSDictionary) {
content = receipt
if let productID = receipt["product_id"] as? String {
self.productID = productID
}
// When subscription, set expires date
if let receiptExpiresDate = receipt["expires_date"] as? String,
let red = StoreKit.getDate(receiptExpiresDate) {
expiredDate = red
// Is in trial?
if let tp = content["is_trial_period"] as? String,
tp == "true" {
inFreeTrialPeriod = true
haveBeenInFreeTrialPeriod = true
}
// When was the intro?
if let intro = content["is_in_intro_offer_period"] as? String,
intro == "true" {
introOfferPeriodDate = red
}
let now = Date()
// Subscription still active today?
isActive = red.isAfterOrSame(now)
// Eligibility; check against PREVIOUS subscription period
if !isActive {
// You can use “is_in_intro_offer_period” value to determine if the user is eligible for introductory pricing. If a previous subscription period in the receipt has the value “true” for either the “is_trial_period” or “is_in_intro_offer_period” keys, the user is not eligible for a free trial or introductory price within that subscription group.
let benefitedFromIntroductoryPrice = introOfferPeriodDate != nil || inFreeTrialPeriod
isEligible = !benefitedFromIntroductoryPrice
}
}
}
}
如果正确实施了IAP入门价格，则不需要在iOS方面做任何额外的工作来管理它。价格通过iTunesConnect界面进行管理。通过正确实施它，我的意思是使用SKProduct API来获取价格并在应用程序中显示它，以便当您从iTunes Connect更改它时，它也会在应用程序中更改。