ios - 将两个 NSarray 转换为 NSString

Question

嗨，我的视图控制器中有两个 NS 数组，它们的计数相同。顺便说一句，这是为了提交上传。

barcodeItems = [[NSMutableArray alloc] init];

barcodeItemsQuantity = [[NSMutableArray alloc] init];

填充数组后，将调用此方法，

-(void) performUploadOperation {
parameters = [NSMutableDictionary dictionary];

// Add barcodes and quantity
if (barcodeItems != nil || barcodeItemsQuantity != nil) {

    [parameters setValue:barcodeItems forKey:@"upc"];
    [parameters setValue:barcodeItemsQuantity forKey:@"upcQuantity"];

   }
}

提交后，将调用另一个方法将其转换为 nsstring

NSArray* upc = [parameters objectForKey:@"upc"];
NSArray* upcQuantity = [parameters objectForKey:@"upcQuantity"];

NSString* sample = [NSString stringWithFormat:@"{\"upc_list\" : { \"%@\": %@}}", upc, upcQuantity];
NSLog(@"%@", sample);

结果是这样的

{"upc_list" : { "(
    76239878,
    0827755090991,
    76239878
)": (
    12,
    23,
    32
)}}

我想要实现的是这样的。两个数组始终具有相同的计数

{"upc_list" : { "
   (
    "76239878" : 12,
    "0827755090991" : 23,
    "76239878" : 32
   )
 }}

Answer 1

@jordanzee：您可以使用以下代码来获得预期的结果。

NSArray *upc = [parameters objectForKey:@"upc"];
NSArray *upcQuantity = [parameters objectForKey:@"upcQuantity"];

NSMutableDictionary *aMutDict = [NSMutableDictionary dictionary];
for(NSInteger aIndex = 0; aIndex < upc.count; aIndex++){
   [aMutDict setValue:upcQuantity[aIndex] forKey:upc[aIndex]];
}

NSString *sample = [NSString stringWithFormat:@"{\"upc_list\" : %@}", aMutDict];
NSLog(@"%@", sample);