I have an application that has LSUIElement = 1 in the Info.plist. When I run the application, a dock item and toplevel menu bar is created for it. Why?
EDIT:
I was using a library that was calling TransformProcessType(), clobbering my Info.plist configuration.
Go to your Info.plist file, and add a new key-value pair, or type Boolean. Start typing in the key the phrase "Application is agent". It should auto-complete for you. Then check the checkbox.
This is how I create my agent applications, and it works every time!
drawnonward
The 1 must be a string, not a number (according to the documentation of LSUIElement). Something to try anyway.
来源：https://stackoverflow.com/questions/2762456/lsuielement-not-working