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Breakpoint Every UIPasteboard Method with LLDBLLDB 断点 UIPasteboard 的所有方法

2020-06-25 · Debugging & reverse engineering

Translated from Chinese — .

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• Summary

iOS 14 added a privacy feature: when an app reads content that another app copied to the clipboard, a brief banner is shown. Like this:

You can inspect every clipboard-related behavior in an app by setting a breakpoint on all UIPasteboard methods.

To break on every method of UIPasteboard, use the following command:

breakpoint set -r '\[UIPasteboard .*\]$'

Break at main first, then type the command above in the LLDB console.

(The screenshot above only captures part of the UIPasteboard methods.)

Summary

Give it a try — you’ll notice that, besides our own calls, the system itself occasionally triggers UIPasteboard-related calls too.

Pretty interesting :)

文章目录

• 总结

iOS14 新增了一个保护隐私的功能，当前App读取其他App复制到剪贴板中的内容时，会有个短暂的提示。如下图：

可以通过断点 UIPasteboard 的所有方法来检查App中与剪贴板有关的所有行为。

断点一个UIPasteboard的所有方法可以用如下命令：

breakpoint set -r '\[UIPasteboard .*\]$'

先断点到main，然后lldb终端输入以上命令。

（上图只截图了一部分UIPasteboard的方法）

总结

嗯，大家小试一下～ 会发现除了我们自己调用，系统也偶尔会触发UIPasteboard相关调用。

很有趣～