ios - 如何在 objective-c 中的头文件中访问定义的常量数组？

Question

我在头文件中创建了常量多维数组。我想从实现访问数组。怎么做？

Config.h

 #define SORT_OPTIONS @[ \
        [ @3, @"Default", @"&sort=p.sort_order&order=ASC" ],  \
        [ @1, @"Product Name (A - Z)", @"&sort=pd.name&order=ASC" ],  \
        [ @2, @"Product Name (Z - A)", @"&sort=pd.name&order=DESC" ], \
        [ @3, @"Low price > High price", @"&sort=p.price&order=ASC" ],  \
        [ @3, @"High price > Low price", @"&sort=p.price&order=DESC" ]]

配置文件

#import "Config.h"

@implementation Config

+ (void) initSortOptionsAsSortObject{
     // I want access array from here   
}

@end

Answer 1

我认为您的定义有问题。

#define SORT_OPTIONS @[ \
    [ @3, @"Default", @"&sort=p.sort_order&order=ASC" ],  \
    [ @1, @Product Name (A - Z)", @"&sort=pd.name&order=ASC" ],  \
    [ @2, @"Product Name (Z - A)", @"&sort=pd.name&order=DESC" ], \
    [ @3, @"Low price > High price", @"&sort=p.price&order=ASC" ],  \
    [ @3, @"High price > Low price", @"&sort=p.price&order=DESC" ]]

子数组不包含@文字，并且您的@Product Name缺少"
尝试这样的事情:

#define SORT_OPTIONS @[ \
@[ @3, @"Default", @"&sort=p.sort_order&order=ASC" ],  \
@[ @1, @"Product Name (A - Z)", @"&sort=pd.name&order=ASC" ],  \
@[ @2, @"Product Name (Z - A)", @"&sort=pd.name&order=DESC" ], \
@[ @3, @"Low price > High price", @"&sort=p.price&order=ASC" ],  \
@[ @3, @"High price > Low price", @"&sort=p.price&order=DESC" ]]

访问它:SORT_OPTIONS[0]; // directly accessing the index