Ios 显示应用内购买的本地化价格
我在ViewController中使用以下代码,但是当我调用Ios 显示应用内购买的本地化价格,ios,iphone,objective-c,in-app-purchase,Ios,Iphone,Objective C,In App Purchase,我在ViewController中使用以下代码,但是当我调用\u priceFormatter时,它会将价格显示为(null) ViewController.m { NSNumberFormatter * _priceFormatter; } ViewDidLoad [RageIAPHelper sharedInstance]; _products = nil; [[RageIAPHelper sharedInstance] requestProdu
\u priceFormatter
时,它会将价格显示为(null)
ViewController.m
{
NSNumberFormatter * _priceFormatter;
}
ViewDidLoad
[RageIAPHelper sharedInstance];
_products = nil;
[[RageIAPHelper sharedInstance] requestProductsWithCompletionHandler:^(BOOL success, NSArray *products) {
if (success) {
_products = products;
}
}];
SKProduct * product = (SKProduct *) [_products objectAtIndex:0];
([[RageIAPHelper sharedInstance] productPurchased:product.productIdentifier]);
_priceFormatter = [[NSNumberFormatter alloc] init];
[_priceFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
[_priceFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
[_priceFormatter setLocale:product.priceLocale];
[_priceFormatter stringFromNumber:product.price];
已编辑
_priceFormatter = [[NSNumberFormatter alloc] init];
[_priceFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
[_priceFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
[_priceFormatter setLocale:product.priceLocale];
NSString *priceString = [_priceFormatter stringFromNumber:product.price];
按钮:
UIButton *buyButton = [[UIButton alloc] initWithFrame:CGRectMake(-1, 370, 320, 60)];
[buyButton setTitle:[NSString stringWithFormat:@"Upgrade for %@", priceString] forState:UIControlStateNormal];
[buyButton.titleLabel setFont:[UIFont boldSystemFontOfSize:13.0]];
[buyButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[buyButton.titleLabel setShadowColor:[UIColor colorWithWhite:0.1 alpha:1.0]];
[buyButton.titleLabel setShadowOffset:CGSizeMake(0, -1)];
[buyButton addTarget:self action:@selector(buyButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
buyButton.tag = 0;
[[self view] addSubview:buyButton];
您需要等待,直到调用完成处理程序来处理产品:
[RageIAPHelper sharedInstance];
_products = nil;
[[RageIAPHelper sharedInstance] requestProductsWithCompletionHandler:^(BOOL success, NSArray *products) {
if (success) {
_products = products;
SKProduct * product = _products[0];
[[RageIAPHelper sharedInstance] productPurchased:product.productIdentifier];
_priceFormatter = [[NSNumberFormatter alloc] init];
[_priceFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
[_priceFormatter setLocale:product.priceLocale];
NSString *price = [_priceFormatter stringFromNumber:product.price];
someLabel.text = price;
}
}];
如您所见,您需要实际使用格式化的数字字符串。您刚刚丢弃了该值。对
requestProductsWithCompletionHandler
的调用是异步的。在设置\u products
之前很久,您就试图访问它。那么我应该更改什么?在调用完成处理程序之前不要处理这些产品。是的,但是如何更改代码以使其正常工作?请参阅我的答案。顺便说一句,为什么要将产品标记为已购买?此代码不购买任何东西。它只是检索有关您的产品的数据。谢谢,我编辑了上面的问题以向您展示。我仍然得到(空)我在我的应用程序中使用了这些代码,但为什么它总是显示USD。我试图更改iPhone上的语言设置,但没有成功。怎么了?
[RageIAPHelper sharedInstance];
_products = nil;
[[RageIAPHelper sharedInstance] requestProductsWithCompletionHandler:^(BOOL success, NSArray *products) {
if (success) {
_products = products;
SKProduct * product = _products[0];
[[RageIAPHelper sharedInstance] productPurchased:product.productIdentifier];
_priceFormatter = [[NSNumberFormatter alloc] init];
[_priceFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
[_priceFormatter setLocale:product.priceLocale];
NSString *price = [_priceFormatter stringFromNumber:product.price];
someLabel.text = price;
}
}];