NSPredicate for Dictionaries [英] NSPredicate for Array of Dictionaries

问题描述

我有一个

Array
  Item 0 -- Dictionary
    Sport -- String
    Mens  -- Array
      Item 0 -- Dictionary
        Name -- String
        Rules -- String
        Description -- String
    Womens  -- Array
      Item 0 -- Dictionary
        Name -- String
        Rules -- String
        Description -- String
   Item 1 -- Dictionary
      And so on.....

我想创建一个NSPredicate搜索给定的字符串是否包含在Name中。我怎样才能达到那么深？

I would like to create a NSPredicate searching if a given string is contained inside of Name. How can I achieve reaching that deep?

如果你无法理解图表。我有一个充满字典的数组，里面的字典是一个字符串，一个字典数组和一个字典数组，里面的字典是字符串对象

If you cant understand the graph. I have an array full of dictionaries, Inside the dictionaries are A string, An Array of dictionaries, and An Array of dictionaries, Inside of the dictionaries are string objects

那么如何进入第二个词典并搜索名称密钥

So How do I get into the second dictionaries and search the Name key

提前致谢

推荐答案

您需要以下内容

NSString *str = <search string>;
NSPredicate *pred = [NSPredicate predicateWithFormat:@"ANY Mens.Name LIKE %@ OR ANY Womens.Name LIKE %@", str, str];
NSArray *result = [your_array filteredArrayUsingPredicate:pred];
BOOL success = result.count > 0;

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