ios - 使用 NSPredicate 在一次搜索 iOS swift 中搜索多个单词

Question

我想通过从详细列表中输入多个单词来搜索列表。例如，在 claim 请求列表中，有不同类型的标签，例如金额、请求者名称、请求名称和编号。所以我想搜索此标签中的任何内容，以便能够找到确切的请求。

Answer 1

var predicateList = [NSPredicate]()

let words = filterText.componentsSeparatedByString(" ")

for word in words{

 if count(word)==0{
       continue
 }

 let RequestTypeArray = NSPredicate(format: "RequestType contains[c] %@", word)
 let RequestEmployeeArray = NSPredicate(format: "RequestorEmployee contains[c] %@", word)
 let RegesterNumberArray = NSPredicate(format: "ReqNo contains[c] %@", word)
 let AmountOrDaysArray = NSPredicate(format: "AmountOrDays contains[c] %@", word)

 let orCompoundPredicate = NSCompoundPredicate(type: NSCompoundPredicateType.OrPredicateType, subpredicates: [firstNamePredicate, lastNamePredicate,departmentPredicate,jobTitlePredicate])

 predicateList.append(orCompoundPredicate)
}

  request.predicate = NSCompoundPredicate(type:    NSCompoundPredicateType.AndPredicateType, subpredicates: predicateList)