为什么NSOpenPanel / NSSavePanel显示内存泄漏？

问题描述

不知道为什么，但是做一个简单的 [[NSOpenPanel openPanel] runModal]; 创建一个内存泄漏 - 见Leaks Instrument。

似乎已关闭。

这是一个自动发布的对象，应该不会在ARpool消耗后自动释放？

有没有办法解决这个问题？

解决方案

NSOpenPanel 这意味着你每次使用它时总是获得相同的对象实例。这意味着第一次调用 [NSOpenPanel openPanel] 时，会创建一个 NSOpenPanel 的实例，并且不会被释放。 / p>

这不是一个泄漏，它是一个优化。但是，有时Leaks仪器会选择这样一次性的实例化作为泄漏，因为实例（从设计上）从未被释放。

NSOpenPanel 是一个广泛使用和测试的类，其标准实现中的任何泄漏都不太可能存在。

Not sure why, but making a simple [[NSOpenPanel openPanel] runModal]; creates a memory leak - seen in Leaks Instrument.

Seems off.

It's an auto-released object, shouldn't it be automatically released after ARpool is drained?

Is there a way to fix this?

解决方案

NSOpenPanel is a singleton, which means you always get the same instance of the object every time you use it. This means that the first time you call [NSOpenPanel openPanel], an instance of NSOpenPanel is created and not released.

This is not a leak, it's an optimisation. However, sometimes the Leaks instrument picks up such once-only instantiations as leaks because the instances are (by design) never released.

NSOpenPanel is such a widely-used and tested class that any leaks in its standard implementation are unlikely to exist.

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