RestKit：BOOL的值 [英] RestKit: Values to BOOL

问题描述

我有 NS_ENUM ，其中包含核对清单的状态。这两个属性是待定和已完成。

I have an NS_ENUM that holds the status of a checklist. The two properties are Pending and Completed.

typedef NS_ENUM（NSUInteger，ChecklistStatus）{待定，已完成};

我正在尝试获取状态并映射到到真/假值。我正在使用的方法是通过RKValueTransformer。

I am trying to take the status and map that to a true/false value. The method i'm doing this with is via RKValueTransformer.

以下是代码：

+(RKValueTransformer *)checklistStatusToBooleanTransformer
{
    RKValueTransformer *transformer = [RKBlockValueTransformer valueTransformerWithValidationBlock:^BOOL(__unsafe_unretained Class sourceClass, __unsafe_unretained Class destinationClass) {
        return ([sourceClass isSubclassOfClass:[NSNumber class]]);
    } transformationBlock:^BOOL(NSNumber *inputValue, __autoreleasing id *outputValue, __unsafe_unretained Class outputClass, NSError *__autoreleasing *error) {
        // validate the input
        RKValueTransformerTestInputValueIsKindOfClass(inputValue, [NSNumber class], error);
        if([inputValue isEqual:@(Completed)]) {
            *outputValue = [NSNumber numberWithBool:YES];
        } else {
            *outputValue = [NSNumber numberWithBool:YES];
        }

        return YES;
    }];

    return transformer;
}

我无法将输出值显式地转换为BOOL，所以我真的迷失了我应该在这里做什么。

I'm not able to explicitly cast my output value as a BOOL, so i'm really lost as to what I should do here.

任何帮助都将不胜感激！

Any help would be greatly appreciated!

推荐答案

您无法显式转换，因为 BOOL 不是基本类型。检查所需的输出是否为字符串false/true而不是t / f的实际值

You can't explicitly convert, since BOOL isn't a primitive type. Check if the desired output is a string "false"/"true" instead of actualy values of t/f

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