In-App-Purchase in iOS

Step 1 :iTunes Connect (Login Ur Account) -> Manage Subscriptions -> App(Which One) -> Manage the InAppPurchase -> Select Type -> Create a Product id (ex:com.ashuss.AppPremium) -> Approve.

Step 2 : In Project Header --> Tab the Capabilities --> InApp Purchase to Enable it.

Step 3: Add a StoreKit.framwork into Your Project

Step 4: Add the In-App-Purchase Code into Your Project

-(void)viewWillAppear:(BOOL)animated 

           (or)

-(void)viewDidLoad

{

    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

}

-(IBAction)Btn_Click:(id)sender

{

    BOOL productpurchased = [[NSUserDefaults standardUserDefaults] boolForKey:@"com.ashuss.AppPremium"];

    if (productpurchased)

    {

        //iPhone_HSMO *vmo = [[iPhone_HSMO alloc]init];

        //[self.navigationController pushViewController:vmo animated:YES];

    }

    else

    {

        objAlert = [[UIAlertView alloc]initWithTitle:@"App Premium" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:@"Restore",@"Buy", nil];

        [objAlert show];

        [objAlert setTag:1];

    }

}

-(void)alertView:(UIAlertView *)objAlert didDismissWithButtonIndex:(NSInteger)buttonIndex {

    if ([objAlert tag]==1)

{

if (buttonIndex==0)

{

[[SKPaymentQueue defaultQueue]restoreCompletedTransactions];

}

else if (buttonIndex==1)

{

SKProductsRequest *request= [[SKProductsRequest alloc]initWithProductIdentifiers: [NSSet setWithObject: @"com.ashuss.AppPremium"]];

            request.delegate = self;

            [request start];

}

}

}

- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response

{

    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

    

    NSArray *myProduct = response.products;

    NSLog(@"%@",[[myProduct objectAtIndex:0] productIdentifier]);

    

    //Since only one product, we do not need to choose from the array. Proceed directly to payment.

    

    SKPayment *newPayment = [SKPayment paymentWithProduct:[myProduct objectAtIndex:0]];

    [[SKPaymentQueue defaultQueue] addPayment:newPayment];

    

    [request autorelease];

}

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions

{

    for (SKPaymentTransaction *transaction in transactions)

    {

        switch (transaction.transactionState)

        {

            case SKPaymentTransactionStatePurchased:

                [self completeTransaction:transaction];

                break;

            case SKPaymentTransactionStateFailed:

                [self failedTransaction:transaction];

                break;

            case SKPaymentTransactionStateRestored:

                [self restoreTransaction:transaction];

            default:

                break;

        }

    }

}

- (void) completeTransaction: (SKPaymentTransaction *)transaction

{

    NSLog(@"Transaction Completed");

    // You can create a method to record the transaction.

    //[self recordTransaction: transaction];

    

    // You should make the update to your app based on what was purchased and inform user.

    [self provideContent: transaction.payment.productIdentifier];

    

    // Finally, remove the transaction from the payment queue.

    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];

    

}

- (void) restoreTransaction: (SKPaymentTransaction *)transaction

{

    NSLog(@"Transaction Restored");

    // You can create a method to record the transaction.

    // [self recordTransaction: transaction];

    

    // You should make the update to your app based on what was purchased and inform user.

    [self provideContent: transaction.payment.productIdentifier];

    

    // Finally, remove the transaction from the payment queue.

    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];

}

-(void)provideContent: (NSString *)productIdentifier

{

    if ([productIdentifier isEqualToString:@"com.ashuss.AppPremium"])

    {

        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:productIdentifier];

        //[[NSUserDefaults standardUserDefaults] setDouble:1.11 forKey:aa];

        [[NSUserDefaults standardUserDefaults] synchronize];

        [[NSNotificationCenter defaultCenter] postNotificationName:@"InAppPurchase" object:productIdentifier userInfo:nil];

        

        iPhone_HSMO *vmo = [[iPhone_HSMO alloc]init];

        [self.navigationController pushViewController:vmo animated:YES];

    }

    else

    {

        NSLog(@"Failed");

    }

}

- (void) failedTransaction: (SKPaymentTransaction *)transaction

{

    //[activityIndicator stopAnimating];

    if (transaction.error.code != SKErrorPaymentCancelled)

    {

        // Display an error here.

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Purchase Unsuccessful"

                                                        message:@"Your purchase failed. Please try again."

                                                       delegate:self

                                              cancelButtonTitle:@"OK"

                                              otherButtonTitles:nil];

        [alert show];

        [alert release];

    }

    

    // Finally, remove the transaction from the payment queue.

    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];

}