CoreGraphics 打印奇怪的消息
最近，当我显示一些 PDF 文件时，我开始关注调试消息。
我认为当 CALayer 重绘某些页面时，会发生这种情况。
Text clipping 0xab9b930:
Node 0: XIXHYA+LinotypeFeltpen-Medium-OV-IFXHYA (31.0031, 0, 0, 31.0031, 29.5798, 137.483)
14 (0, 0)
Node 1: XIXHYA+LinotypeFeltpen-Medium-OV-IFXHYA (31.0031, 0, 0, 31.0031, 36.3075, 137.483)
25 (0, 0)
Node 2: XIXHYA+LinotypeFeltpen-Medium-OV-IFXHYA (31.0031, 0, 0, 31.0031, 49.7628, 137.483)
12 (0, 0)
...
这是什么意思？
内存泄漏之间是否也有可能存在相互关联，因为它发生时，当显示页面时，有时会打印内存警告。为了更好地理解，我使用模拟器上的仪器来检测泄漏，但它找不到任何东西。仅当我在 iPad 上测试应用程序时，它才会打印此内存泄漏警告。
I recently came to following debug messag, when I diplay some PDF files.
I think it occurs on some pages, when the CALayer redraws them.
Text clipping 0xab9b930:
Node 0: XIXHYA+LinotypeFeltpen-Medium-OV-IFXHYA (31.0031, 0, 0, 31.0031, 29.5798, 137.483)
14 (0, 0)
Node 1: XIXHYA+LinotypeFeltpen-Medium-OV-IFXHYA (31.0031, 0, 0, 31.0031, 36.3075, 137.483)
25 (0, 0)
Node 2: XIXHYA+LinotypeFeltpen-Medium-OV-IFXHYA (31.0031, 0, 0, 31.0031, 49.7628, 137.483)
12 (0, 0)
...
What does it mean?
Is it also possible, that there is an interconnection between memory leaks, because it occurs, that when the pages are displayed, it sometimes prints a memory warning. For a better understanding, I use Instruments on the Simulator to detect leaks, but it couldn't find anything. Only when I test the Application on an iPad, it prints this memory leak warnings.
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我不明白这些消息的含义。我知道，当 CALayer 绘制某些内容时，它们就会发生，但无论如何它不必对 CoreGraphics pdf 泄漏执行某些操作。
泄漏是我自己造成的。
I didn't figure out, what the messages are meaning. I know, they occure, when a CALayer is drawing something, but anyhow it doesn't have to do something with CoreGraphics pdf leaking.
The leaks occure by my own.