Question

我有问题。永远不会调用SKProductsRequest委托方法。这是先前被问到的，但它没有答案。 StoreKit delegate functions are not getting called

我不是母语为英语的人，有时听起来很可笑：P :(

我想在我的iOS应用中实现StoreKit。我创建了一个类来处理所有StoreKit通信。这是代码：

@implementation VRStoreController
- (void) requestProducts
{
    SKProductsRequest *request= [[SKProductsRequest alloc]
                                 initWithProductIdentifiers:
                                 [NSSet setWithObject: @"myProductID"]];
    request.delegate = self;
    [request start];
    [[UIApplication sharedApplication]setNetworkActivityIndicatorVisible:YES];

}

- (void) productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
{
    NSLog(@"F7U12");
    [[UIApplication sharedApplication]setNetworkActivityIndicatorVisible:NO];
    NSArray *myProducts = response.products;
    NSLog(@"%@", myProducts);

}

我在我的app delegate

中创建了一个实例

@interface VRAppDelegate
@property (strong, nonatomic) VRStoreController *store;
@end

奇怪的是，当我在appDidFinishLaunching：方法中运行[store requestProducts]时，这段代码工作正常。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //app initialization...

    self.store = [[VRStoreController alloc]init];   
    [store requestProducts]; //This works ok, delegate method gets called.
    return YES;
}

但是当我在设置tableView：didSelectRowAtIndexPath中运行代码时：委托方法永远不会被调用。

//VRAppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //app initialization...
    self.store = [[VRStoreController alloc]init];//initialize store 
    return YES;
}

//VRSettingsViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    switch (indexPath.section) {
        //case 0, 1...
        case 2:
        {
            VRStoreController *store = ((VRAppDelegate *)[UIApplication sharedApplication].delegate).store;
            [store requestProducts]; //calls SKProductRequest start, but never calls delegate method.
            NSLog(@"GO PRO");
        }
        default:
            break;
    }
}

我不知道我做得不好。几乎尝试了一切，没有错误，没有崩溃，但委托从未被调用。任何帮助都将非常感激。

提前非常感谢！

Answer 1

SKProductsRequestDelegate协议也符合SKRequestDelegate协议，该协议具有以下方法：

- (void)request:(SKRequest *)request didFailWithError:(NSError *)error;
- (void)requestDidFinish:(SKRequest *)request;

实现它们并查看是否正在调用它们中的任何一个。您可能会收到错误或意外的响应。

Answer 2

我终于找到了问题。我没有保留SKProductRequest，因此请求已启动，然后被转储。我通过这样做来修复它

//VRStoreController.m

@interface VRStoreController ()
@property (strong, nonatomic) SKProductRequest *request; //Store the request as a property
@end

@implementation VRStoreController
@synthesize request;

- (void) requestProducts
{
    self.request = [[SKProductsRequest alloc] //save the request in the property
                             initWithProductIdentifiers:
                             [NSSet setWithObject: @"myProductID"]];
    self.request.delegate = self;
    [self.request start];
    [[UIApplication sharedApplication]setNetworkActivityIndicatorVisible:YES];
}

虽然问题已解决，但我认为不需要保留请求，因为我已经调用了start方法并设置了它的委托，它应该自己做其他所有事情，并且应该保留自己直到它接收响应（或错误），然后解除分配。

StoreKit委托方法未被调用

2 个答案: