lib_unity_purchase/Samples~/Apple App Store - 12 Upgrad.../SubscriptionGroup.cs

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2024-01-29 18:49:33 +08:00
using System;
using System.Linq;
using UnityEngine;
using UnityEngine.Purchasing;
namespace Samples.Purchasing.AppleAppStore.UpgradeDowngradeSubscription
{
/// <summary>
/// A subscription group is a list of subscriptions where a user can only be subscribed to a single subscription in the group at one time.
/// The subscriptions in the group are ordered by their tier, meaning a user can upgrade or downgrade from one subscription to another in the group.
/// </summary>
public class SubscriptionGroup
{
IStoreController m_StoreController;
IExtensionProvider m_ExtensionsProvider;
string[] m_SubscriptionIds;
public SubscriptionGroup(IStoreController storeController, IExtensionProvider extensionsProvider, params string[] subscriptionIds)
{
m_StoreController = storeController;
m_ExtensionsProvider = extensionsProvider;
m_SubscriptionIds = subscriptionIds;
}
public void BuySubscription(string newSubscriptionId)
{
m_StoreController.InitiatePurchase(newSubscriptionId);
}
public string CurrentSubscriptionId()
{
return m_SubscriptionIds.FirstOrDefault(IsSubscribedTo);
}
bool IsSubscribedTo(string subscriptionId)
{
var subscriptionProduct = m_StoreController.products.WithID(subscriptionId);
return IsSubscribedTo(subscriptionProduct);
}
static bool IsSubscribedTo(Product subscription)
{
// If the product doesn't have a receipt, then it wasn't purchased and the user is therefore not subscribed.
if (subscription?.receipt == null)
{
return false;
}
var subscriptionManager = new SubscriptionManager(subscription, null);
var subscriptionInfo = subscriptionManager.getSubscriptionInfo();
return subscriptionInfo.isSubscribed() == Result.True;
}
}
}