有没有办法捕获或处理EXC_BAD_ACCESS？ [英] Is there a way to catch or handle EXC_BAD_ACCESS?

问题描述

据我了解，EXC_BAD_ACCESS会在您尝试访问不良内存时发生（如果我错了，请随时纠正我）？

As far as I understand, EXC_BAD_ACCESS happens when you try to access bad memory (feel free to correct me if I'm wrong)?

有没有办法有点像 try-catch 在 Java 中捕获它以防止应用程序完全失败？

Is there a way to kind of catch it like in a try-catch in Java to prevent total app failure?

推荐答案

不; EXC_BAD_ACCESS 意味着事情已经过时了。您的程序正在尝试访问无效的内存地址。即内存已损坏且没有可预测的恢复。

Nope; EXC_BAD_ACCESS means things have gone wildly off the rails. Your program is trying to access a memory address that is invalid. I.e. memory has been corrupted and there is no predictable recovery.

这可能是内存管理问题。如果您可以重现该问题，请启用NSZombies并查看会发生什么。或者在这里发布回溯。

It may be a memory management issue. If you can reproduce the issue, turn on NSZombies and see what happens. Or post the backtrace here.

请注意，try-catch样式异常在iOS / Cocoa中也是不可恢复的。异常不能用于可恢复的错误处理。这就是NSError的用途。

Note that try-catch style exceptions are non-recoverable in iOS/Cocoa, too. Exceptions are not to be used for recoverable error handling. That is what NSError is for.

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