如何通过命令行参数设置NSDictionary用户默认值？

Question

It's possible to set User Defaults in a Cocoa app by passing them on the command line as arguments like:

> SomeApp -key value

This sets the default "key" to "value" in the NSArgumentDomain .

Array defaults can be set by doing something like:

> SomeApp -key (element1,element2)

I've found that this will set an empty dictionary:

> SomeApp -key {}

... but I can't figure out how to set a dictionary containing elements. How can I set an NSDictionary user default through a command line argument?

Answer 1

It turns out the proper syntax is: > SomeApp -key {key1=value1;key2=value2;}

The array and dictionary syntax is similar to the output of NSArray and NSDictionary values when printed through NSLog() .