Swift2 Swift中字典的过滤数组

我有一个带字典的数组示例：

(
        {
        Email = "kate-bell@mac.com";
        Name = "Kate Bell";
        Number = "(555) 564-8583";
    },
        {
        Email = "d-higgins@mac.com";
        Name = "Daniel Higgins";
        Number = "555-478-7672";
    }
)

我想根据键“Name”筛选这本字典

---

我总是从上面的swift代码中得到空数组。请帮我解决这个问题。谢谢

我建议改用Swift的

过滤器

：

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
    let filteredArray = arrContact.filter { $0["Name"] == searchText }
    print(filteredArray)
    if filteredArray.isEmpty {
        searchActive = false
    } else {
        searchActive = true
    }
    tblData.reloadData()
}

正如@LeoDabus在评论中提到的，您甚至可以进一步简化：

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
    let filteredArray = arrContact.filter { $0["Name"] == searchText }
    print(filteredArray)
    searchActive = !filteredArray.isEmpty
    tblData.reloadData()
}

---

为swift 3试一试

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {

    // Put your key in predicate that is "Name"
    let searchPredicate = NSPredicate(format: "Name CONTAINS[C] %@", searchText)
    let array = (arrContact as NSArray).filtered(using: searchPredicate)

    print ("array = \(array)")

    if(array.count == 0){
        searchActive = false;
    } else {
        searchActive = true;
    }
    self.aTable.reloadData()
}

其中“name”是密钥名

  var namePredicate = NSPredicate(format: "Name like %@",  String(searchText));
        let searchPredicate = NSPredicate(format: "Name CONTAINS[C] %@", searchText)
        arrrDict = self.arrrDict.filter { searchPredicate.evaluate(with: $0) };
       you will get the result in dictionary specialy made to get contats from the phone book

Swift

从模型类获取项/数组的列表

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
    if self.searchBarItems.text == "" {
        self.arrFilter = self.arrayDictionarySubModel
    } else {
        self.arrFilter.removeAll()
        let filteredArray = self.arrayDictionarySubModel.filter { ($0.itemTitle?.contains(self.searchBarItems.text ?? ""))!}
        print("filtered array:- ", filteredArray[0].itemTitle!)
        self.arrFilter = filteredArray
    }
    self.searchItemTableView.reloadData()
}

---

searchActive=！filteredaray.isEmpty

@Abhishek Rathore。请让我知道，如果你有任何问题，这是一个可怕的答案，即使我有相同的问题，但你的回答节省了我一天不在Swift 4工作。请更新或添加Swift 4

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
    if self.searchBarItems.text == "" {
        self.arrFilter = self.arrayDictionarySubModel
    } else {
        self.arrFilter.removeAll()
        let filteredArray = self.arrayDictionarySubModel.filter { ($0.itemTitle?.contains(self.searchBarItems.text ?? ""))!}
        print("filtered array:- ", filteredArray[0].itemTitle!)
        self.arrFilter = filteredArray
    }
    self.searchItemTableView.reloadData()
}