如何对包含字典的数组进行排序? [英] How to sort an array which contains Dictionaries?

问题描述

我有一个包含字典的数组；那么如何根据字典键值对数组进行排序?

I have an array which contains dictionaries in it; so how can I sort the array according to dictionary key values?

推荐答案

如果数组中的每个元素都是包含特定键的字典，则可以使用排序描述符对数组进行排序.例如，如果每个元素都是包含名为名称"的键的字典:

If every element in the array is a dictionary containing a certain key, you can sort the array using a sort descriptor. For instance, if every element is a dictionary containing a key called "name":

NSSortDescriptor *sortByName = [NSSortDescriptor sortDescriptorWithKey:@"name"
    ascending:YES];
NSArray *sortDescriptors = [NSArray arrayWithObject:sortByName];
NSArray *sortedArray = [array sortedArrayUsingDescriptors:sortDescriptors];

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