swift2 – 在Swift中过滤字典数组

发布时间：2020-12-14 04:29:15 所属栏目：百科来源：网络整理

导读：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"; }) 我想根据密钥“名称”过滤这个字典 func searchBa

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";
    }
)

我想根据密钥“名称”过滤这个字典

func searchBar(searchBar: UISearchBar,textDidChange searchText: String) {
    let predicate = NSPredicate(format:"Name == %@",searchText)
    let filteredArray = (arrContact as NSMutableArray).filteredArrayUsingPredicate(predicate)
    print(filteredArray)
    if(filteredArray.count == 0){
                searchActive = false;
            } else {
                searchActive = true;
            }
            tblData.reloadData()
 }

我总是从上面的swift代码得到空数组.请帮我解决这个问题.谢谢

解决方法

试试这个swift 3

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()
}

（编辑：李大同）

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