如何发布CTFramesetter？

本文介绍了如何发布CTFramesetter？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我在我的应用程序中使用CoreText，我确实有一个很大的泄漏，但是我不知道为什么会发生。因此，这是我的代码段：

I am using CoreText in my app and i have a really huge leak but i cant fnd out why it happens. so here is the snippet of my code:

 _framesetter = CTFramesetterCreateWithAttributedString((CFAttributedStringRef)_mAttributedString);

CFDictionaryRef frameOptionsDictionary = (CFDictionaryRef)[self frameOptionsDictionary];

_frame = CTFramesetterCreateFrame(_framesetter,
                                CFRangeMake(0, _mAttributedString.length),
                                path,
                                frameOptionsDictionary);

CFRelease(_framesetter), _framesetter = NULL;

如您所见，我正在释放CTFramesetter ...但是应用程序泄漏，并且仪器向我显示是CTFramesetter导致的。那么我应该如何释放它呢？

As you can see, i am releasing me CTFramesetter... but app leaks, and instruments show me that CTFramesetter causes that. So how should i release it?

推荐答案

0）确保没有失败：

assert(_mAttributedString);
assert(0 == _framesetter);
_framesetter = CTFramesetterCreateWithAttributedString(
                             (CFAttributedStringRef)_mAttributedString);

CFDictionaryRef frameOptionsDictionary =
                   (CFDictionaryRef)[self frameOptionsDictionary];

assert(path);
assert(0 == _frame);
_frame = CTFramesetterCreateFrame(_framesetter,
                                CFRangeMake(0, _mAttributedString.length),
                                path,
                                frameOptionsDictionary);

CFRelease(_framesetter), _framesetter = NULL;

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