過濾NSDictionary的NSArray，其中字典的類型<key , NSDictionary>

Question

我有一個這樣的NSArray

[{“ 268”：{“ name”：“ abc”，“ age”：“ 28”}}}，{“ 267”：{“ name”：“ xyz”，“ age”：“ 25”}}]

現在，我要代表鍵對其進行過濾（意味着268、267）。 例如：如果用戶搜索7，則需要顯示

[{“ 267”：{“ name”：“ xyz”，“ age”：“ 25”}}]

Answer 1

let filterText : String = "7"

let array : [Dictionary<String,Any>] = [ ["268" : [ "name" : "abc", "age" : "28"]], [ "267" : [ "name" : "xyz","age" : "25"] ] ]

let result = array.filter { (dictinory) -> Bool in
    if let firstKey = dictinory.keys.first {
            return firstKey.contains(filterText)
    }
    return false
}

Answer 2

您可以在Objective-C中使用帶有塊的NSPredicate對其進行過濾：

  NSString *searchText = @"8";
  NSArray *data = @[@{ @"268" : @{ @"name" : @"abc", @"age" : @"28"} }, @{ @"267" : @{ @"name" : @"xyz",@"age" : @"25"}}];
  NSPredicate *predicate = [NSPredicate predicateWithBlock: ^BOOL(id obj, NSDictionary *bind) {
    NSDictionary *dict = (NSDictionary *)obj;
    NSString *key = dict.allKeys.firstObject;
    return [key containsString:searchText];
  }];
  NSArray *filteredData = [data filteredArrayUsingPredicate:predicate];