The point here is that if your code is running on the UI thread, the application can't handle UI events from the OS.

问题的重点在于如果UI线程在运行您的代码，应用程序将无法再处理来自OS的UI事件。

youdao

The point here is that if your code is running on the UI thread, the application can't handle UI events from the OS.

问题的重点在于如果UI线程在运行您的代码，应用程序将无法再处理来自OS的UI事件。

youdao