在 badoo/Chatto 聊天文本上填充 API 数据时，无法访问 alamofire 请求范围之外的模型对象数据

Question

以前我成功地访问了类中任何地方的模型对象，但在badoo/chatto文本视图中填充数据时，我陷入了困境。我正在将聊天消息api集成到badoo聊天视图中

从根本上讲，问题在于，阿拉莫菲的反应并没有超出范围。

我是否尝试过编译处理程序，但没有成功？有什么办法解决这个问题吗？

提前谢谢。

以下是代码片段：

import Foundation
import Chatto
import ChattoAdditions
import SwiftyJSON
import Alamofire
class DemoChatMessageFactory {
public static var chats = [ChatModel]()
class func makeMessage(_ uid:String) -> DemoTextMessageModel{
print("uid makeMessage : (uid)")
return self.makeMessageData(uid, isIncoming:false)
}
class func makeMessageData(_ uid: String,isIncoming:Bool) -> DemoTextMessageModel {
if isIncoming == true{
return self.makeTextFinalMessage(uid, isIncoming:isIncoming)
} else {
return self.makeTextFinalMessage(uid, isIncoming: isIncoming)
}
}
public class func makeTextMessage(_ uid: String, isIncoming: Bool,text:String) -> DemoTextMessageModel {
let messageModel = self.makeMessageModel(uid, isIncoming: isIncoming,
type: TextMessageModel<MessageModel>.chatItemType)
let textMessageModel = DemoTextMessageModel(messageModel:messageModel,
text: text)
return textMessageModel
}
public class func makeTextFinalMessage(_ uid: String, isIncoming: Bool) -> DemoTextMessageModel {
var text = String()
var uidInt  = Int(uid)
print("string uid 121 (uid)")
print("print is Incomming data or not 1: (isIncoming)")
print("uid count :(uid.count)")
let urlString = "[My message Api]"
Alamofire.request(urlString, method: .get).validate().responseJSON {
(response) -> Void in
if let value = response.data {
do {
let json = try JSON(data: value)
if let dictionnary = json.dictionaryObject {
if let messageArray = dictionnary["message"] as?[[String: Any]] {
self.chats.removeAll()
for arr in messageArray {
self.chats.append(ChatModel(ChatListJSON: arr))
}
}
}
} catch {
print("cannot convert to Json")
}
}
print("print int 122 : (uidInt!)")
print("Chat List Id DemoChatMessageFactory (self.chats[uidInt!].chatId)")
print("chat message: (String(describing: uidInt!)) th (self.chats[uidInt!].chatMessage)")
self.textData = "(self.chats[uidInt!].chatMessage)"
self.makeTextMessage(uid, isIncoming: isIncoming, text:self.textData) //Here I am bale to pass textData but ouside the Alamofire block can't access
}
//Here getting empty values
print("uid makeTextFinalMessage (uid)")
print("in coming makeTextFinalMessage (isIncoming)")
print("text makeTextFinalMessage (text)")
//chat count also getting zero count
print("chat count final text(chats.count)")
print("print chat count : (self.chats.count)")
return self.makeTextMessage(uid, isIncoming: isIncoming, text:self.textData)
}
}

完成处理程序的测试

public var res: Any = ""
func getAllChatData(completionhandler:@escaping ([String: Any]?) -> ()){
let URL = "my api"
Alamofire.request(URL).responseJSON {
response in
if let json = response.result.value as? [String: Any] {
completionhandler(json, nil)
}
else if let error = response.result.error as Error? {
completionhandler(nil, error)
}
}
}

并在函数中使用如下调用

DemoChatMessageFactory.getAllChatData {
(result) in
res = result
print("response (res)")
}

请给我推荐使用编译处理程序的alamofire的正确方法

Answer 1

这是一个使用异步调用结果转换所有方法的示例。由于我从未使用过Chatto，并且您没有在代码中显示所有类型，因此您可能需要修改我的代码的许多部分，但我相信您可以看到您需要使用此代码做什么。

import Foundation
import Chatto
import ChattoAdditions
import SwiftyJSON
import Alamofire
class DemoChatMessageFactory {
public static var chats = [ChatModel]()
class func requestMessage(_ uid:String,
completion: @escaping (DemoTextMessageModel?, Error?)->Void) {
print("uid makeMessage : (uid)")
self.requestMessageData(uid, isIncoming: false) { (model, error) in
completion(model, error)
}
}
class func requestMessageData(_ uid: String, isIncoming: Bool,
completion: @escaping (DemoTextMessageModel?, Error?)->Void) {
if isIncoming {
//...put any code needed when isIncoming is true
self.requestTextFinalMessage(uid, isIncoming: isIncoming) { model in
completion(model, error)
}
} else {
//...put any code needed when isIncoming is false
self.requestTextFinalMessage(uid, isIncoming: isIncoming) { model in
completion(model, error)
}
}
}
public class func makeTextMessage(_ uid: String, isIncoming: Bool, text: String) -> DemoTextMessageModel {
let messageModel = self.makeMessageModel(uid, isIncoming: isIncoming,
type: TextMessageModel<MessageModel>.chatItemType)
let textMessageModel = DemoTextMessageModel(messageModel:messageModel,
text: text)
return textMessageModel
}
public class func requestTextFinalMessage(_ uid: String, isIncoming: Bool,
completion: @escaping (DemoTextMessageModel?, Error?)->Void) {
var text = String()
var uidInt  = Int(uid)
print("string uid 121 (uid)")
print("print is Incomming data or not 1: (isIncoming)")
print("uid count :(uid.count)")
let urlString = "[My message Api]"
Alamofire.request(urlString, method: .get).validate().responseJSON {
(response) -> Void in
if let value = response.data {
do {
let json = try JSON(data: value)
if let dictionnary = json.dictionaryObject {
if let messageArray = dictionnary["message"] as?[[String: Any]] {
self.chats.removeAll()
for arr in messageArray {
self.chats.append(ChatModel(ChatListJSON: arr))
}
}
}
print("print int 122 : (uidInt!)")
print("Chat List Id DemoChatMessageFactory (self.chats[uidInt!].chatId)")
print("chat message: (String(describing: uidInt!)) th (self.chats[uidInt!].chatMessage)")
self.textData = "(self.chats[uidInt!].chatMessage)"
completion(self.makeTextMessage(uid, isIncoming: isIncoming, text: self.textData), nil)
} catch {
print("cannot convert to Json")
completion(nil, error)
}
} else {
//better generate an error case result, and call completion.
//...
}
}
}
}

我将一些方法名称从make...更改为request...，以表明它们是异步方法。

以及用法，如果你打算使用你的原始代码作为：

let model = DemoChatMessageFactory.makeMessage(uid)
//Do some UI updates using `model`...

您可能需要使用异步方法，如：

DemoChatMessageFactory.requestMessage(uid) { (model, error) in
if let model = model {
//Do some UI updates using `model`...
} else {
//Do something for the error...
}
}