目录
请求商品信息
- 发起请求
SKProductsRequest *productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithArray:productIdentifiers]];
//保持对请求的强引用
self.productsRequest = productsRequest;
//SKProductsRequestDelegate
productsRequest.delegate = self;
[productsRequest start];
- SKProductsRequestDelegate请求商品信息回调
//收到商品反馈消息
- (void)productsRequest:(SKProductsRequest *)request
didReceiveResponse:(SKProductsResponse *)response {
self.products = response.products;
for (NSString *invalidIdentifier in response.invalidProductIdentifiers) {
// Handle any invalid product identifiers.
}
}
//请求商品结束
- (void)requestDidFinish:(SKRequest *)request {
}
//请求商品信息失败
- (void)request:(SKRequest *)request didFailWithError:(NSError *)error {
}
添加/移除监听
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
[[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
- 添加监听后，当购买状态发生改变时系统会调用以下SKPaymentTransactionObserver的相应协议方法（实现监听方法）
@protocol SKPaymentTransactionObserver <NSObject>
@required
// Sent when the transaction array has changed (additions or state changes). Client should check state of transactions and finish as appropriate.
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray<SKPaymentTransaction *> *)transactions NS_AVAILABLE(10_7, 3_0);
@optional
// Sent when transactions are removed from the queue (via finishTransaction:).
- (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray<SKPaymentTransaction *> *)transactions NS_AVAILABLE(10_7, 3_0);
// Sent when an error is encountered while adding transactions from the user's purchase history back to the queue.
- (void)paymentQueue:(SKPaymentQueue *)queue restoreCompletedTransactionsFailedWithError:(NSError *)error NS_AVAILABLE(10_7, 3_0);
// Sent when all transactions from the user's purchase history have successfully been added back to the queue.
- (void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue NS_AVAILABLE(10_7, 3_0);
// Sent when the download state has changed.
- (void)paymentQueue:(SKPaymentQueue *)queue updatedDownloads:(NSArray<SKDownload *> *)downloads NS_AVAILABLE(10_8, 6_0);
// Sent when a user initiates an IAP buy from the App Store
- (BOOL)paymentQueue:(SKPaymentQueue *)queue shouldAddStorePayment:(SKPayment *)payment forProduct:(SKProduct *)product NS_SWIFT_NAME(paymentQueue(_:shouldAddStorePayment:for:)) NS_AVAILABLE_IOS(11_0);
@end
- 实现监听方法
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray<SKPaymentTransaction *> *)transactions {
for (SKPaymentTransaction *transaction in transactions) {
switch (transaction.transactionState) {
case SKPaymentTransactionStatePurchased:
{
MTLOG(@"交易完成");
//校验交易是否合法 本地校验or自己的服务端校验
//1、记录订单信息，用于校验失败时下次启动app重新发起校验
//2、获取本地凭证 *必需
NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
NSData *receiptData = [NSData dataWithContentsOfURL:receiptURL];
NSString *receiptStr = [receiptData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
//若获取不到本地凭证，则调取刷新凭证的方法刷新凭证
SKReceiptRefreshRequest *request = [[SKReceiptRefreshRequest alloc] init];
request.delegate = self;
[request start];
//获取product_id *必需
NSString *product_id = transaction.payment.productIdentifier;
//获取transaction_id *必需
NSString * transaction_id = transaction.transactionIdentifier;
//3、根据本地凭证本地校验/服务端校验
//4、校验成功，更新数据库，刷新UI，移除记录的订单信息，结束订单
//（若不结束订单，苹果会一直调用 - (void)paymentQueue:updatedTransactions:直到结束该订单）
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
//5、校验失败，不移除记录的订单信息，不调用结束订单方法：[[SKPaymentQueue defaultQueue] finishTransaction:transaction]
//启动app时检查记录的订单信息数组，若非空说明有订单未成功校验，此时需重新调用校验方法
}
break;
case SKPaymentTransactionStatePurchasing:
{
MTLOG(@"商品添加进列表");
}
break;
case SKPaymentTransactionStateRestored:
{
MTLOG(@"恢复购买");
//1、记录已购买过的商品，用于解锁商品。在恢复成功的回调里解锁商品
//恢复成功回调：- (void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue；
}
break;
case SKPaymentTransactionStateFailed:
{
MTLOG(@"交易失败");
}
break;
default:
break;
}
}
}
- (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray<SKPaymentTransaction *> *)transactions {
MTLOG(@"移除购买队列");
}
- (void)paymentQueue:(SKPaymentQueue *)queue restoreCompletedTransactionsFailedWithError:(NSError *)error {
MTLOG(@"恢复内购失败");
}
- (void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue {
MTLOG(@"恢复内购完成");
//1、恢复成功，解锁商品
}
- 获取本地凭证
- 凭证用于校验订单是否合法
NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
NSData *receiptData = [NSData dataWithContentsOfURL:receiptURL];
NSString *receiptStr = [receiptData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
- 若凭证不存在，则请求刷新凭证<SKRequestDelegate>
SKReceiptRefreshRequest *request = [[SKReceiptRefreshRequest alloc] init];
request.delegate = self;
[request start];
- <SKRequestDelegate> 刷新凭证回调，回调里重新校验订单
@protocol SKRequestDelegate <NSObject>
@optional
- (void)requestDidFinish:(SKRequest *)request NS_AVAILABLE(10_7, 3_0);
- (void)request:(SKRequest *)request didFailWithError:(NSError *)error NS_AVAILABLE(10_7, 3_0);
@end
- 根据检验返回的状态码判断购买是否有效/订阅是否过期
image.png
- 校验成功，则调用finish方法结束订单。若不调用finish方法则苹果会一直调用- (void)paymentQueue:updatedTransactions:直到结束该订单
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
购买
- 判断是否能够购买
BOOL canMakePayments = [SKPaymentQueue canMakePayments];
- 发起购买请求
- 优先判断是否请求到商品信息，若未请求到则再次发起请求（详见请求商品信息）
SKPayment *payment = [SKPayment paymentWithProduct:product];
payment.applicationUsername = applicationUsername; //可以唯一标识用户账号即可，是用于apple检测非法活动
[[SKPaymentQueue defaultQueue] addPayment:payment];
- 购买结果回调方法（详见添加/移除监听 — 1. 实现监听方法）
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray<SKPaymentTransaction *> *)transactions;
恢复购买
- 发起恢复购买请求
//恢复已购项目（只有非消耗性、免费（或限时免费）、自动订阅（有效期内）、免费订阅 的项目才能被恢复）
[[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
- 恢复内购回调（详见添加/移除监听 — 1. 实现监听方法）
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray<SKPaymentTransaction *> *)transactions;
