ios - 为什么没有代码的单 View swift 应用程序会泄漏内存？

Question

我创建了一个带有 UILabel 的单 View swift 应用程序。

当我尝试分析此应用程序时，它似乎正在泄漏内存。为什么会出现这种情况？

我确信，我在某个地方缺少了一个步骤或一个标志，但我无法找到它。

我没有在此应用程序中编写任何自己的代码。这是一个使用 XCode iOS Single View App 模板创建的应用程序。有人可以帮我理解这里发生了什么吗？

编辑1:

这是代码:

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return true
    }

    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }
}

class ViewController: UIViewController {
}

还附上主 Storyboard的屏幕截图。

Answer 1

If you have no code in your application, logically there shouldn't be any memory leak .

解决了这个问题，我们来谈谈工具(绿色勾号和红色 x 标记)，它们通常表示内存使用情况的变化并不总是意味着存在内存泄漏，这可能有很多原因造成的。

正如您所看到的，检查是在每个时间戳之间完成的，因此它会比较这些时间戳之间的内存使用情况并确定是否存在任何潜在的内存泄漏，内存中的这些跳转并不总是用内存来证明是合理的，但更像是有在此时间戳期间内存发生变化，因此您可以检查一下，如果确实是内存泄漏，或者只是由于某些功能或分配的依赖对象而导致正常内存增加，那么它是一个监视工具，而不是一个检测错误工具，用于监视我们的应用程序内存分配等的变化..