如何在 Xcode 4 中设置 NSZombieEnabled? [英] How do I set up NSZombieEnabled in Xcode 4?

问题描述

如何在 Xcode 4 中为我的可执行文件设置 NSZombieEnabled 和 CFZombieLevel?

How do I set up NSZombieEnabled and CFZombieLevel for my executable in Xcode 4?

推荐答案

在 Xcode 4.x 中按

In Xcode 4.x press

(或点击Menubar > Product > Scheme > Edit Scheme)

(or click Menubar > Product > Scheme > Edit Scheme)

选择诊断"选项卡并单击启用僵尸对象":

select the "Diagnostics" tab and click "Enable Zombie Objects":

这会将释放的对象变成 NSZombie 实例，再次使用时会打印控制台警告.这是一个调试辅助工具，它增加了内存使用(没有真正释放对象)但改进了错误报告.

This turns released objects into NSZombie instances that print console warnings when used again. This is a debugging aid that increases memory use (no object is really released) but improves error reporting.

一个典型的例子是当你过度释放一个对象而你不知道是哪一个时:

A typical case is when you over-release an object and you don't know which one:

• 有僵尸:-[UITableView release]:消息发送到释放实例
• 没有僵尸:

当您为 App Store 提交归档应用程序时，此 Xcode 设置将被忽略.在发布您的应用程序之前，您不需要接触任何东西.

This Xcode setting is ignored when you archive the application for App Store submission. You don't need to touch anything before releasing your application.

按 ⌥⌘R 与选择产品 > 运行相同，同时按住 Alt 键.
单击启用僵尸对象"复选框与在选项卡参数的环境变量"部分手动添加NSZombieEnabled = YES"相同.

Pressing ⌥⌘R is the same as selecting Product > Run while keeping the Alt key pressed.
Clicking the "Enable Zombie Objects" checkbox is the same as manually adding "NSZombieEnabled = YES" in the section "Environment Variables" of the tab Arguments.

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