Cocos2dx InApp 购买 for ios

Question

我正在尝试将应用内购买集成到我使用 cocos2d x c++ 制作的应用中。我正在使用 easyNdk Helper 进行应用内购买。我的应用内购买非常适合我的 Objective C 应用。但是对于 cocos2d x 它会抛出以下行的错误

if ([[RageIAPHelper sharedInstance] productPurchased:productP.productIdentifier])

实际上值以参数的形式完美地来自 CPP 文件，并在 NSLog 中正确显示它们的值，但它总是将对象显示为 nil，甚至 objetcs 在 NSLog 中打印它们的存储值

@try catch 条件也不起作用

最后抛出如下错误

请帮我做什么？ 谢谢

我的 .CPP 代码是

 NDKHelper::AddSelector("HelloWorldSelectors",
                           "SampleSelector",
                           callfuncND_selector(Main::cameFromObjC),
                           this);

            CCDictionary* prms = CCDictionary::create();
            prms->setObject(CCString::create("SampleSelector"), "to_be_called");
            prms->setObject(CCString::create(result), "BirdNameKey");
SendMessageWithParams(string("SampleSelector"), prms);

和.mm代码是

- (void) SampleSelector:(NSObject *)prms
{
    NSLog(@"purchase something called");
    NSDictionary *parameters =   [[NSDictionary alloc]init];// (NSDictionary*)prms;
    parameters = (NSDictionary*)prms;
    NSLog(@"Passed params are : %@", parameters);

    // Fetching the name of the method to be called from Native to C++
    // For a ease of use, i have passed the name of method from C++
    NSString* CPPFunctionToBeCalled = (NSString*)[parameters objectForKey:@"to_be_called"];
    //NSString *str = [NSString stringWithFormat:@"%@",[parameters valueForKey:@"BirdNameKey"]];
    NSString *BirdName =  [parameters valueForKey:@"BirdNameKey"];
    NSString *str = [[NSString alloc]initWithFormat:@"%@",[parameters objectForKey:@"BirdNameKey"]];
    NSUserDefaults *d2 = [NSUserDefaults standardUserDefaults];
    NSLog(@"%@ , %@ , %@", str,BirdName,[d2 objectForKey:@"product"]); // output is ok for all
    SKProduct * product = (SKProduct *) [ APPDELEGATE.productDictionary objectForKey:[d2 objectForKey:@"product"]];
    [ APPDELEGATE.priceFormatter setLocale:product.priceLocale];
    APPDELEGATE.currentProduct =product;

if ([[RageIAPHelper sharedInstance] productPurchased:product.productIdentifier])
        {
           // check the product purchased or not but app crash at this if statement
        }
   [IOSNDKHelper SendMessage:CPPFunctionToBeCalled WithParameters:nil];
}

Answer 1

我也遇到过这个问题，我已经解决了。 在你的 IAPhelper.mm 中

只做这个替换这一行

_purchasedProductIdentifiers = [NSMutableSet set];

下面一行

_purchasedProductIdentifiers = [[NSMutableSet alloc] init];

如下图

 - (id)initWithProductIdentifiers:(NSSet *)productIdentifiers {

    if ((self = [super init])) {

        // Store product identifiers
        _productIdentifiers = productIdentifiers;

        // Check for previously purchased products
//        _purchasedProductIdentifiers = [NSMutableSet set];
        _purchasedProductIdentifiers = [[NSMutableSet alloc] init];
        for (NSString * productIdentifier in _productIdentifiers) {
            BOOL productPurchased = [[NSUserDefaults standardUserDefaults] boolForKey:productIdentifier];
            if (productPurchased) {
                [_purchasedProductIdentifiers addObject:productIdentifier];
                // NSLog(@"Previously purchased: %@", productIdentifier);
            } else {
                // NSLog(@"Not purchased: %@", productIdentifier);
            }
        }

        // Add self as transaction observer
        [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

    }
    return self;

}

Answer 2

我发现您的代码存在两个（潜在）问题，

首先

CCDictionary* prms = CCDictionary::create();

请注意，以这种方式初始化数据对象并不能保证当您稍后在代码中（特别是在其他函数中）尝试访问它时它不会被释放

所以，试试这个吧，

CCDictionary* prms = new CCDictionary();
prms->init ... (the initialization)

但请注意，通过这样做，您现在有责任在完成此对象后删除它。另外，我不确定“setObject”方法的实现，如果是保留对象那么我相信这一步是没有必要的，但我不确定所以你必须检查它！

其次

NSDictionary *parameters =   [[NSDictionary alloc]init];// (NSDictionary*)prms;
parameters = (NSDictionary*)prms;
NSLog(@"Passed params are : %@", parameters);

我认为那个选角有问题（或者我可能错了）

我建议你做这样的事情

(NSDictionary *)nsDictionaryFromCCDictionary:(cocos2d::CCDictionary *)ccDictionary {
if (ccDictionary == NULL) {
    return NULL;
} else if (ccDictionary->allKeys() == NULL) {
    return NULL;
} else if (ccDictionary->allKeys()->count() <= 0) {
    return NULL;
}

cocos2d::CCLog("1");

NSMutableDictionary *nsDict = [NSMutableDictionary dictionaryWithCapacity:ccDictionary->allKeys()->count()];

cocos2d::CCLog("2");

for (int i = 0; i < ccDictionary->allKeys()->count(); i++) {
    cocos2d::CCLog("3");

    cocos2d::CCObject* obj = ccDictionary->objectForKey(((cocos2d::CCString *)ccDictionary->allKeys()->objectAtIndex(i))->getCString());
    NSObject* nsObject;
    if(isKindOfClass(obj, cocos2d::CCDictionary))
    {
        nsObject = @"Dictionary";
    }
    else if(isKindOfClass(obj, cocos2d::CCArray))
    {
        nsObject = @"Array";
    }
    else if (isKindOfClass(obj, cocos2d::CCString))
    {
        const char* cstring = ((cocos2d::CCString*)obj)->getCString();
        nsObject = [[[NSString alloc] initWithBytes:cstring length:strlen(cstring) encoding:NSUTF8StringEncoding] autorelease];
    }
    else if (isKindOfClass(obj, cocos2d::CCInteger))
    {
        nsObject = [NSString stringWithFormat:@"%d", ((cocos2d::CCInteger*)obj)->getValue()];
    }
    else
    {
        nsObject = @"Unknown Object";
    }
    [nsDict setValue:nsObject forKey:[AnalyticXStringUtil nsstringFromCString:((cocos2d::CCString *)ccDictionary->allKeys()->objectAtIndex(i))->getCString()]];
}

return nsDict;

}

我已经从 >>> https://github.com/diwu/AnalyticX/blob/master/Add-To-Your-Own-Project/AnalyticXStringUtil.mm 粘贴了上面的代码

尝试将字典作为 CCDictionary 接收并检查此对象是否有效（因为 mm 可以具有 c++ 和目标 c 代码，所以这不会成为问题）然后在创建 NSDictionary 后，尝试打印它。希望这次不会给你报错。