Swift 快速上手（IMKit）

# Podfile
platform :ios, '13.0'
target 'YourApp' do
  pod 'ImpIaaSIMKit', '~> 1.0'   # 自动依赖 ImpIaaSIM
end

import ImpIaaSIM

final class IMService {
    static let shared = IMService()
    private(set) var client: IMPClient!

    func setup() {
        client = ImpIaaSIM.client(options: IMPClientOptions(
            appkey: "YOUR_APP_KEY",
            serverUrl: "https://im.example.com"
        ))
    }

    func connect(token: String) async {
        let res = await client.connect(token: token)
        if res.code != 0 { print("connect failed:", res.code, res.msg ?? "") }
    }
}

import ImpIaaSIMKit

let controller = IMPChatViewController(conversationType: .privateChat, targetId: "user2")
controller.client = client
navigationController.pushViewController(controller, animated: true)

final class MessageListener: IMPEventListener {
    func onEvent(_ payload: IMPEventPayload) {
        if case .messages(let messages) = payload {
            // 门面已处理会话与气泡；自定义页面时可在此更新列表
            print("received", messages.count)
        }
    }
}
let listener = MessageListener()
client.addEventListener(.messages, listener: listener)

let sent = await client.sendTextMessage(
    conversationType: .privateChat, targetId: "user2", text: "你好，NI PaaS", options: nil
)
if sent.code != 0 { print("send failed:", sent.code, sent.msg ?? "") }