很长的问题，但很容易理解，所以请花点时间:)
几周前，我为我的应用创建了一个商店页面。我是应用内购买的新手，并获得了一些网络代码。这是为 1 个对象制作的，所以我决定根据自己的需要编辑代码。一次购买应用程序的专业版，购买 3 次购买 3 种不同数量的硬币。
当我购买硬币时，它可以正常工作，唯一的问题是我第二次购买它会增加我购买的硬币数量的 2 倍，第三次它将增加我购买的硬币数量的 3 倍等等。我希望有人可以看看在我的代码中并告诉我出了什么问题。对于这个主题，我将代码稍微小了一点，并且不会显示所有购买。
//the 100 coins button
-(IBAction)savedata100:(id)sender {
askToPurchase100Munten = [[UIAlertView alloc]
initWithTitle:@"100 Munten"
message:@"Ga verder om 100 Munten te kopen."
delegate:self
cancelButtonTitle:nil
otherButtonTitles:@"Verder", @"Cancel", nil];
askToPurchase100Munten.delegate = self;
[askToPurchase100Munten show];
[askToPurchase100Munten release];
//下一步
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
else if (alertView==askToPurchase100Munten) {
if (buttonIndex==0) {
// user tapped YES, but we need to check if IAP is enabled or not.
if ([SKPaymentQueue canMakePayments]) {
SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:@"100Munten"]];
Temp = 2;
request.delegate = self;
[request start];
} else {
UIAlertView *tmp = [[UIAlertView alloc]
initWithTitle:@"Prohibited"
message:@"Parental Control is enabled, cannot make a purchase!"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:@"Ok", nil];
[tmp show];
[tmp release];
}
}
}
//下一步
-(void)productsRequest:(SKProductsRequest *)request didReceiveResponse: (SKProductsResponse *)response
{
statusLabel.text = @"";
int count = [response.products count];
}
if (Temp == 2){
if (count>0) {
SKProduct *selectedProduct = [response.products objectAtIndex:0];
SKPayment *payment = [SKPayment paymentWithProduct:selectedProduct];
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
[[SKPaymentQueue defaultQueue] addPayment:payment];
} else {
UIAlertView *tmp = [[UIAlertView alloc]
initWithTitle:@"Not Available"
message:@"No products to purchase"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:@"Ok", nil];
[tmp show];
[tmp release];
}
}
//最后一步这是每次我做的时候被调用的次数越来越多（uiView也弹出更多次）
-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {
for (SKPaymentTransaction *transaction in transactions) {
switch (transaction.transactionState) {
case SKPaymentTransactionStatePurchasing:
// show wait view here
statusLabel.text = @"Verwerken...";
break;
case SKPaymentTransactionStatePurchased:
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
// remove wait view and unlock feature 2
statusLabel.text = @"Klaar!";
if (Temp == 2){
//ADD COINS WHEN PURCHASES IS COMPLETE
int coinsToAdd = 100;
int currentCoins = [[NSUserDefaults standardUserDefaults] integerForKey:@"savedstring"];
int savestring =
currentCoins + coinsToAdd;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [defaults setInteger:savestring forKey:@"savedstring"]; [defaults synchronize];
[label111 setText:[NSString stringWithFormat:@"Munten: %i",[self getCoins]]];
//ALERTVIEW TO SHOW YOU PURCHASED COINS
UIAlertView *tmp2 = [[UIAlertView alloc]
initWithTitle:@"Voltooid"
message:@"Je hebt 100 Munten Gekocht"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:@"Ok", nil];
[tmp2 show];
[tmp2 release];
感谢阅读希望有人可以帮助我:)