【iOS子线程UI检测】-.alpha addsubView 等检测不出来

[xhdrq]

It is recommended to refer to the following process before submitting issues：#745
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Please complete the following informations.

Android、iOS? OS version? Brand?
Expected behavior and actual behavior.
Steps to reproduce the problem.
More informations such as error messages and stack traces are welcomed.

建议提issues之前可以参考一下DoKit社区答疑流程：#745
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请补充如下信息。

Android 还是 iOS？系统版本是多少？手机品牌是什么？（如有）
期望的表现和实际的表现。（如有）
问题重现的步骤。（如有）
其他的错误信息和堆栈信息如果有也可以一并提供出来。（如有）