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我的应用内购买有效。我展示了一个带有“Buy”UIButton 的 ModalView。您单击该按钮,应用程序内购买就会完成该过程。您甚至可以连续执行几次。
如果您打开模态视图,然后关闭模态视图(使用 UITabBarButtonItem),然后重新打开模态视图并点击“购买”按钮,则会出现此问题。应用程序崩溃了,我得到一个 NSZombie,上面写着
*** -[InAppPurchaseManager respondsToSelector:]: message sent to deallocated instance 0x1c7ad0
NSZombie 指向 .m 文件中的第 160 行。我已经用注释标记了。
我从这个页面得到了原始代码:http://troybrant.net/blog/2010/01/in-app-purchases-a-full-walkthrough/
我已经为此苦苦挣扎了很多天......任何帮助都会很棒。
这是.h
//
// InAppPurchaseManager.h
// Copyright 2010 __MyCompanyName__. All rights reserved.
#import <UIKit/UIKit.h>
#import <StoreKit/StoreKit.h>
#define kInAppPurchaseManagerProductsFetchedNotification @"kInAppPurchaseManagerProductsFetchedNotification"
#define kInAppPurchaseManagerTransactionFailedNotification @"kInAppPurchaseManagerTransactionFailedNotification"
#define kInAppPurchaseManagerTransactionSucceededNotification @"kInAppPurchaseManagerTransactionSucceededNotification"
#define kInAppPurchaseCreditProductId @"com.myname.app.iap"
@interface InAppPurchaseManager : UIViewController <SKProductsRequestDelegate, SKPaymentTransactionObserver>
{
SKProduct *productID;
SKProductsRequest *productsRequest;
IBOutlet UIBarButtonItem *closeButton;
IBOutlet UIButton *buyButton;
IBOutlet UILabel *testLabel;
}
@property (retain, nonatomic) SKProduct *productID;
@property (retain, nonatomic) SKProductsRequest *productsRequest;
@property (retain, nonatomic) IBOutlet UIBarButtonItem *closeButton;
@property (retain, nonatomic) IBOutlet UIButton *buyButton;
@property (retain, nonatomic) IBOutlet UILabel *testLabel;
// public methods
-(void)loadStore;
-(BOOL)canMakePurchases;
-(void)purchaseCredit;
-(void)requestInAppPurchaseData;
-(void)buyButtonAction:(id)sender;
-(void)closeButtonAction:(id)sender;
-(void)updateButtonStatus:(NSString *)status;
@end
这是.m
// InAppPurchaseManager.m
#import "InAppPurchaseManager.h"
@implementation InAppPurchaseManager
@synthesize productID;
@synthesize productsRequest;
@synthesize closeButton;
@synthesize buyButton;
@synthesize testLabel;
- (void)dealloc {
[productID release];
//[productsRequest release];
[closeButton release];
[buyButton release];
[testLabel release];
[super dealloc];
}
- (void)viewDidLoad {
[super viewDidLoad];
[closeButton release];
closeButton = [[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleBordered target:self action:@selector(closeButtonAction:)];
self.navigationItem.leftBarButtonItem = closeButton;
[self loadStore];
self.navigationItem.title = @"Credits";
}
-(void)closeButtonAction:(id)sender {
[self dismissModalViewControllerAnimated:YES];
}
-(void)buyButtonAction:(id)sender {
if([self canMakePurchases]) {
[self updateButtonStatus:@"OFF"];
[self performSelectorOnMainThread:@selector(requestInAppPurchaseData) withObject:nil waitUntilDone:NO];
} else {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:[NSString stringWithString:@"Your account settings do not allow for In App Purchases."] delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alertView show];
[alertView release];
}
}
-(void)updateButtonStatus:(NSString *)status {
if ([status isEqual:@"OFF"]) {
closeButton.enabled = NO;
buyButton.enabled = NO;
buyButton.titleLabel.textColor = [UIColor grayColor];
} else {
closeButton.enabled = YES;
buyButton.enabled = YES;
buyButton.titleLabel.textColor = [UIColor blueColor];
}
}
#pragma mark -
#pragma mark SKProductsRequestDelegate methods
//
// call this method once on startup
//
- (void)loadStore
{
// restarts any purchases if they were interrupted last time the app was open
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
}
- (void)requestInAppPurchaseData
{
NSSet *productIdentifiers = [NSSet setWithObject:kInAppPurchaseCreditProductId];
productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers];
productsRequest.delegate = self;
[productsRequest start];
// we will release the request object in the delegate callback
}
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
{
NSArray *products = response.products;
productID = [products count] == 1 ? [[products objectAtIndex:0] retain] : nil;
if (productID)
{
/*
NSLog(@"Product title: %@" , productID.localizedTitle);
NSLog(@"Product description: %@" , productID.localizedDescription);
NSLog(@"Product price: %@" , productID.price);
NSLog(@"Product id: %@" , productID.productIdentifier);
*/
NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
NSString *currentCredits = ([standardUserDefaults objectForKey:@"currentCredits"]) ? [standardUserDefaults objectForKey:@"currentCredits"] : @"0";
testLabel.text = [NSString stringWithFormat:@"%@", currentCredits];
}
for (NSString *invalidProductId in response.invalidProductIdentifiers)
{
//NSLog(@"Invalid product id: %@" , invalidProductId);
testLabel.text = @"Try Again Later.";
}
// finally release the reqest we alloc/init’ed in requestProUpgradeProductData
[productsRequest release];
[[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerProductsFetchedNotification object:self userInfo:nil];
[self performSelectorOnMainThread:@selector(purchaseCredit) withObject:nil waitUntilDone:NO];
}
//
// call this before making a purchase
//
- (BOOL)canMakePurchases
{
return [SKPaymentQueue canMakePayments];
}
//
// kick off the upgrade transaction
//
- (void)purchaseCredit
{
SKPayment *payment = [SKPayment paymentWithProductIdentifier:kInAppPurchaseCreditProductId];
// *********************************************************************************************************
[[SKPaymentQueue defaultQueue] addPayment:payment]; // <--- This is where the NSZombie Appears *************
// *********************************************************************************************************
}
#pragma -
#pragma Purchase helpers
//
// saves a record of the transaction by storing the receipt to disk
//
- (void)recordTransaction:(SKPaymentTransaction *)transaction
{
if ([transaction.payment.productIdentifier isEqualToString:kInAppPurchaseCreditProductId])
{
// save the transaction receipt to disk
[[NSUserDefaults standardUserDefaults] setValue:transaction.transactionReceipt forKey:@"InAppPurchaseTransactionReceipt" ];
[[NSUserDefaults standardUserDefaults] synchronize];
}
}
//
// enable pro features
//
- (void)provideContent:(NSString *)productId
{
if ([productId isEqualToString:kInAppPurchaseCreditProductId])
{
// Increment currentCredits
NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
NSString *currentCredits = [standardUserDefaults objectForKey:@"currentCredits"];
int newCreditCount = [currentCredits intValue] + 1;
[standardUserDefaults setObject:[NSString stringWithFormat:@"%d", newCreditCount] forKey:@"currentCredits"];
testLabel.text = [NSString stringWithFormat:@"%d", newCreditCount];
}
}
//
// removes the transaction from the queue and posts a notification with the transaction result
//
- (void)finishTransaction:(SKPaymentTransaction *)transaction wasSuccessful:(BOOL)wasSuccessful
{
// remove the transaction from the payment queue.
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:transaction, @"transaction" , nil];
if (wasSuccessful)
{
// send out a notification that we’ve finished the transaction
[[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionSucceededNotification object:self userInfo:userInfo];
}
else
{
// send out a notification for the failed transaction
[[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionFailedNotification object:self userInfo:userInfo];
}
[self updateButtonStatus:@"ON"];
}
//
// called when the transaction was successful
//
- (void)completeTransaction:(SKPaymentTransaction *)transaction
{
[self updateButtonStatus:@"OFF"];
[self recordTransaction:transaction];
[self provideContent:transaction.payment.productIdentifier];
[self finishTransaction:transaction wasSuccessful:YES];
}
//
// called when a transaction has been restored and and successfully completed
//
- (void)restoreTransaction:(SKPaymentTransaction *)transaction
{
[self recordTransaction:transaction.originalTransaction];
[self provideContent:transaction.originalTransaction.payment.productIdentifier];
[self finishTransaction:transaction wasSuccessful:YES];
}
//
// called when a transaction has failed
//
- (void)failedTransaction:(SKPaymentTransaction *)transaction
{
if (transaction.error.code != SKErrorPaymentCancelled)
{
// error!
[self finishTransaction:transaction wasSuccessful:NO];
}
else
{
// this is fine, the user just cancelled, so don’t notify
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
}
[self updateButtonStatus:@"ON"];
}
#pragma mark -
#pragma mark SKPaymentTransactionObserver methods
//
// called when the transaction status is updated
//
- (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];
break;
default:
break;
}
}
}
@end
最佳答案
错误消息表明消息正在发送到 InAppPurchaseManager
的已释放实例,该实例是您的类。它发生在您打开 View (创建实例),关闭 View (释放实例),然后再次打开 View (创建第二个实例)之后。问题发生在 addPayment:
调用中。这表明框架仍然拥有您旧的已发布实例的句柄,并且正在尝试向其发送消息。
当您调用时,您为框架提供了 loadStore 中对象的句柄
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
我没有看到您在任何地方删除 self
作为观察者。发送通知的对象通常不会保留其观察者,因为这样做可能会造成保留周期和/或内存泄漏。
在您的 dealloc
代码中,您需要清理并调用 removeTransactionObserver:
。这应该可以解决你的问题。
关于iphone - 应用内购买在 [[SKPaymentQueue defaultQueue] addPayment :payment] 上崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4150926/
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