重新排序NSDictionary数组[重复]答案

【问题标题】：Reordering an array of NSDictionary [duplicate]重新排序NSDictionary数组[重复]
【发布时间】：2017-05-17 18:10:53
【问题描述】：

如何通过“ordinator”键以这种格式重新排序 NSDictionary 数组？

我需要通过“ordinator”键对它们重新排序，以便在表格中显示它们。在其他包含对象的数组中，我使用 sort 使用类属性进行排序。我可以做类似这个数组的事情吗？

 [
            [
            LogData = "17/05/2017 15:3:23";
            LogDataInclusao = "17/05/2017 15:3:23";
            LogNome = "Breno Bohm";
            LogNomeInclusao = "Breno Bohm";
            chave = I2017051715323LLNYB;
            chaveNcm = 129;
            date = "31/05/2017";
            defaultPrice = "R$829,44";
            discount1 = "0%";
            discount2 = "0%";
            discount3 = "0%";
            discount4 = "0%";
            discount5 = "0%";
            price = "R$829,44";
            productKey = 17392;
            quantity = 1;
        ],
            [
            LogData = "17/05/2017 15:3:23";
            LogDataInclusao = "17/05/2017 15:3:23";
            LogNome = "Breno Bohm";
            LogNomeInclusao = "Breno Bohm";
            chave = I2017051715323LFGCG;
            chaveNcm = 129;
            date = "31/05/2017";
            defaultPrice = "R$1.002,97";
            discount1 = "0%";
            discount2 = "0%";
            discount3 = "0%";
            discount4 = "0%";
            discount5 = "0%";
            price = "R$1.002,97";
            productKey = 17391;
            quantity = 1;
        ],
            [
            LogData = "17/05/2017 15:3:23";
            LogDataInclusao = "17/05/2017 15:3:23";
            LogNome = "Breno Bohm";
            LogNomeInclusao = "Breno Bohm";
            chave = I2017051715323KMPNY;
            chaveNcm = 129;
            date = "31/05/2017";
            defaultPrice = "R$732,75";
            discount1 = "0%";
            discount2 = "0%";
            discount3 = "0%";
            discount4 = "0%";
            discount5 = "0%";
            price = "R$732,75";
            productKey = 17394;
            quantity = 1;
        ],
            [
            LogData = "17/05/2017 15:3:23";
            LogDataInclusao = "17/05/2017 15:3:23";
            LogNome = "Breno Bohm";
            LogNomeInclusao = "Breno Bohm";
            chave = I2017051715323JHRYJ;
            chaveNcm = 747;
            date = "31/05/2017";
            defaultPrice = "R$270,44";
            discount1 = "0%";
            discount2 = "0%";
            discount3 = "0%";
            discount4 = "0%";
            discount5 = "0%";
            price = "R$270,44";
            productKey = 17393;
            quantity = 1;
        ]
    ]

【问题讨论】：

协调键在哪里？

标签： ios sorting cocoa-touch nsarray

【解决方案1】：

是的，您可以对字典数组进行排序，只需使用subscript 而不是property 访问权限。

排序数组，键包含字符串值

let sortedArray = yourArray.sorted { $0[yourKey] as? String ?? "" < $1[yourKey] as? String ?? "" }

排序数组，键包含整数值

let sortedArray = yourArray.sorted { $0[yourKey] as? Int ?? 0 < $1[yourKey] as? Int ?? 0 }

注意：您的dictionary 中没有ordinator 键，因此只需将yourKey 替换为您想要对数组进行排序的key。

【讨论】：

【解决方案2】：

您可以像这样在 Objective C 中实现这一点：

ordinatorDescriptor = [[NSSortDescriptor alloc] initWithKey:@"ordinator" ascending:YES];
sortDescriptors = [NSArray arrayWithObject:brandDescriptor];
sortedArray = [myArray sortedArrayUsingDescriptors:sortDescriptors];

【讨论】：