iOS

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// AppDelegate.swift

import UIKit
import os

class MyAppDelegate: NSObject {
    private let logger = Logger(subsystem: "com.hiroakit.AppPlayground1", category: "Launch")
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
        logger.log("Start didFinishLaunchingWithOptions")
        sleep(25)
        logger.log("End didFinishLaunchingWithOptions")
        return true
    }
}

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-------------------------------------
Translated Report (Full Report Below)
-------------------------------------

Incident Identifier: 556FE78A-C58C-422B-815B-4C2D77779A0A
CrashReporter Key:   6d90d78f5c7dd0d6c190d36604deee3ba4b1bc3a
Hardware Model:      iPhone17,3
Process:             AppPlayground1 [4612]
Path:                /private/var/containers/Bundle/Application/F592CC68-C4ED-4822-8B5D-71EF7ABAEAE4/AppPlayground1.app/AppPlayground1
Identifier:          com.hiroakit.AppPlayground1
Version:             1.0 (1)
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.hiroakit.AppPlayground1 [2421]

Date/Time:           2025-03-02 10:28:29.0745 +0900
Launch Time:         2025-03-02 10:28:08.0605 +0900
OS Version:          iPhone OS 18.3.1 (22D72)
Release Type:        User
Baseband Version:    1.40.03
Report Version:      104

Exception Type:  EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: FRONTBOARD 2343432205 
<RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-create watchdog transgression: app<com.hiroakit.AppPlayground1(E45319F4-4216-43EF-A72C-A899B7230DFB)>:4612 exhausted real (wall clock) time allowance of 19.97 seconds
ProcessVisibility: Foreground
ProcessState: Running
WatchdogEvent: scene-create
WatchdogVisibility: Foreground
WatchdogCPUStatistics: (
"Elapsed total CPU time (seconds): 22.100 (user 11.320, system 10.780), 18% CPU",
"Elapsed application CPU time (seconds): 0.009, 0% CPU"
) reportType:CrashLog maxTerminationResistance:Interactive>

Triggered by Thread:  0

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import SwiftUI
import os

struct ContentView: View {
    private let logger = Logger(subsystem: "com.hiroakit.AppPlayground1", category: "UI")

    var body: some View {
        VStack {
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundColor(.accentColor)

            Button("ログを出力") {
                logger.info("info: ボタンがタップされました")
                logger.log("log: ボタンがタップされました")
                logger.warning("warning: ボタンがタップされました")
                logger.error("error: ボタンがタップされました")
            }
            .padding()
        }
    }
}

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let exp = expectation(description: "Task")
DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
    exp.fulfill()
}

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let exp = expectation(description: "Task")
XCTWaiter().wait(for: [exp], timeout: 3)