mxSignpost事件在Xcode Organizer中可见吗?

度量组织者在文档中没有此功能:

MetricKit超越了度量组织者中显示的度量,包括平均像素亮度、蜂窝网络条件以及与应用程序中自定义OSSignpost事件相关的持续时间。 https://developer.apple.com/documentation/metrickit/improving_your_app_s_performance .

获取其正在检查的路标信息的唯一方法 MXMetricPayload :

import UIKit
import MetricKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        MXMetricManager.shared.add(self)
        return true
    }

    func applicationWillTerminate(_ application: UIApplication) {
        MXMetricManager.shared.remove(self)
    }
}

extension AppDelegate: MXMetricManagerSubscriber {
    func didReceive(_ payloads: [MXMetricPayload]) {
        for payload in payloads {
            if let signpostMetrics = payload.signpostMetrics {
                for metric in signpostMetrics {
                    print(metric.description)
                }
            }
        }
    }
}