对应用内购买进行排序

compareTitle: 方法,并在数组中使用它。

@interface SKProduct (Local)
- (NSComparisonResult)compareTitle:(SKProduct*)productB
@end

@implementation SKProduct (Local)
- (NSComparisonResult)compareTitle:(SKProduct*)productB
{
    // Compare the product titles
    return [self.localizedTitle compare:productB.localizedTitle];
}
@end

很好的解决方案!因为海报的产品有数字(我的也有),所以我修改了实现,做了如下NSNumericSearch:

- (NSComparisonResult)compareTitle:(SKProduct *)productB {
    // Compare the product titles
    return [self.localizedTitle compare:productB.localizedTitle options:NSNumericSearch];
}