iOS4 (UIAlertView) 为什么这段代码会导致内存泄漏? [英] iOS4 (UIAlertView) why this code causes memory leaks?

问题描述

假设您从头开始创建一个新的 iOS 应用程序，只有一个窗口.然后你把这段代码放在 appDelegate 应用的 didFinishLaunching 方法中:

suppose you create a new iOS app from scratch, with just one single window. then you put this code in the appDelegate application didFinishLaunching method :

UIAlertView *myAlert = [[UIAlertView alloc] 
  initWithTitle:@"alert"                                   
  message:@"message"
  delegate:nil /* same problem with 'delegate:self' */
  cancelButtonTitle:nil 
  otherButtonTitles:@"Ok", nil];
[myAlert show];
[myAlert release];

在模拟器 4.1 中构建并运行，连接仪器，然后...这会导致每次内存泄漏.在leopard上的模拟器3.1.2中，完全没问题.

build and run in simulator 4.1, attach instrument, and... this causes each time a memory leak. in simulator 3.1.2 on leopard, no problem at all.

当然，在实际应用中，UIalertView 是由按钮触发的，但结果是相同的.

Of course, in a real app, the UIalertView is trigerred by a button, but the result is identical.

有什么问题?在 iOS4 之前 UIAlertView 有问题吗?

What is the problem ? is UIAlertView buggy until iOS4 ?

推荐答案

不要在模拟器中检查泄漏.它没有相同的内存模型，因此在没有泄漏时报告泄漏.

Don't check for leaks in a simulator. It doesn't have the same memory model so reports leaks when there aren't any.

在真实设备上进行测试，如果泄漏仍然存在，请将其作为错误报告给 Apple :)

Test on a real device and if the leak is still there, report it as a bug to Apple :)

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