Question

我正在关注this tutorial ，目前我正在尝试保存数组中的数据。实际上这个教程正在做我在我的表中尝试做的事情。目前我正在通过此

获取数据

class Conversations {
var id: Int?
var name: String?
var is_group: Int?
var photo: String?

init(fromDictionary dict: Dictionary<String,Any>) {
    if let tmp = dict["id"] as? Int {
        self.id = tmp
    }

    if let tmp = dict["name"] as? String {
        self.name = tmp
    }

    if let tmp = dict["is_group"] as? Int {
        self.is_group = tmp
    }

    if let tmp = dict["photo"] as? String {
        self.photo = tmp
    }
}

class func getModelArray(fromArray array: [[String:Any]]) -> [Conversations] {
    var conversations = [Conversations]()
    for row in array {
        conversations.append(Conversations(fromDictionary: row))
    }

    return conversations
}

在我的class GroupListViewController: UIViewController, UITableViewDelegate, UITableViewDataSource我已声明var friendList = [Conversations]()，该请求从请求中的json填充self.friendList = Conversations.getModelArray(fromArray: data)

我的问题是如何在教程中做到这一点，因为他对数组进行了硬编码。

我已经尝试过类似的东西但是我收到了

无法将数据'[Conversations] .Type'的值转换为dataArray中预期的参数类型'[[String：Any]]'。说实话，我也不相信它很好

class Conversations {
var id: Int?
var name: String?
var is_group: Int?
var photo: String?

init(fromDictionary dict: Dictionary<String,Any>) {
    if let tmp = dict["id"] as? Int {
        self.id = tmp
    }

    if let tmp = dict["name"] as? String {
        self.name = tmp
    }

    if let tmp = dict["is_group"] as? Int {
        self.is_group = tmp
    }

    if let tmp = dict["photo"] as? String {
        self.photo = tmp
    }
}

class func getModelArray(fromArray array: [[String:Any]]) -> [Conversations] {
    var conversations = [Conversations]()
    for row in array {
        conversations.append(Conversations(fromDictionary: row))
    }

        return conversations
    }
}


class ViewModelConversations {
    private var conversations: Conversations

var isSelected = false
var id: Int? {
    return conversations.id
}

var name: String? {
    return conversations.name
}

var photo: String? {
    return conversations.photo
}

var is_group: Int? {
    return conversations.is_group
}

init(conversations: Conversations) {
    self.conversations = conversations
    }

}

let dataArray = [Conversations.getModelArray(fromArray: [Conversations])]

class ViewModel {
    var conversations = [ViewModelConversations]()
    init() {
        conversations = dataArray.map { ViewModelConversations(conversations: $0)}
    }
}

欣赏。

Answer 1

class func getModelArray(fromArray array: [[String:Any]]) -> [Conversations]

这个函数需要一个字典数组作为输入，你可以在其中传递一个Conversation对象数组：

let dataArray = [Conversations.getModelArray(fromArray: [Conversations])]

所以你需要有一个字典数组才能初始化dataArray常量

将解析的数据保存到数组中

1 个答案: