In-App-Purchase Remove From Queue - ios

Question

I am new on iOS, i am trying to download 3 products from my service but the user needs to buy these products, i have 3 buttons, i click first one and after enter username and password, it is downloading, then i click second product, firstly it is downloading first product then second product,then i click third product, it is downloading first->second->third product.How can i remove the first product from the queue after download first product? Sorry for my bad english.
Thanks.
Best Regards.
- (IBAction)downloadButtonPressed:(id)sender {
SKPayment *payment = [SKPayment paymentWithProductIdentifier:#"com.company.testtest123"];
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
[[SKPaymentQueue defaultQueue]addPayment:payment];
}
- (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray *)transactions {
for (SKPaymentTransaction *transaction in transactions) {
// Count down
#synchronized(self) {
NSInteger numOfTransaction = [[NSUserDefaults standardUserDefaults] integerForKey:#"NumberOfTransactions"];
[[NSUserDefaults standardUserDefaults] setInteger:numOfTransaction-1 forKey:#"NumberOfTransactions"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
}
}
-(void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{
SKProduct *validProduct =nil;
int count = [response.products count];
if (count>0) {
validProduct =[response.products objectAtIndex:0];
}else if(!validProduct){
NSLog(#"No products avaible");
}
}
-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions{
for (SKPaymentTransaction *transaction in transactions) {
switch (transaction.transactionState) {
case SKPaymentTransactionStatePurchasing:
break;
case SKPaymentTransactionStatePurchased:{
//download kismi buraya
NSLog(#"_mainDict = %#",_mainDict);
float _csize = (float) 0 / 1024;
float _tsize = (float) [[_mainDict valueForKey:#"Size"] integerValue] / 1024;
NSString *strDownload = [NSString stringWithFormat:#"downloading \n (%0.2f MB/%.2f MB)",_csize,_tsize];
[SVProgressHUD showProgress:0 status:strDownload maskType:SVProgressHUDMaskTypeBlack];
[service servicePicList];
[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
break;
}
case SKPaymentTransactionStateRestored:{
[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
break;
}
case SKPaymentTransactionStateFailed:
{
if (transaction.error.code != SKErrorPaymentCancelled) {
NSLog(#"An error encountered");
}
[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
break;
}
}
}
}
- (void)failedTransaction:(SKPaymentTransaction *)transaction {
NSLog(#"failedTransaction...");
if (transaction.error.code != SKErrorPaymentCancelled)
{
NSLog(#"Transaction error: %#", transaction.error.localizedDescription);
}
[[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}

Answer 1

i solved the my question :) i just added this line [[SKPaymentQueue defaultQueue] removeTransactionObserver:self]; and now it is working ...:)
-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions{
for (SKPaymentTransaction *transaction in transactions) {
switch (transaction.transactionState) {
case SKPaymentTransactionStatePurchasing:
break;
case SKPaymentTransactionStatePurchased:{
//I added this line.
[[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
NSLog(#"_mainDict = %#",_mainDict);
float _csize = (float) 0 / 1024;
float _tsize = (float) [[_mainDict valueForKey:#"Size"] integerValue] / 1024;
NSString *strDownload = [NSString stringWithFormat:#"downloading \n (%0.2f MB/%.2f MB)",_csize,_tsize];
[SVProgressHUD showProgress:0 status:strDownload maskType:SVProgressHUDMaskTypeBlack];
[service servicePicList];
[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
break;
}
case SKPaymentTransactionStateRestored:{
[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
break;
}
case SKPaymentTransactionStateFailed:
{
if (transaction.error.code != SKErrorPaymentCancelled) {
NSLog(#"An error encountered");
}
[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
break;
}
}
}
}