Re: NSOpenPanel may not respond to setDirectoryURL?
Re: NSOpenPanel may not respond to setDirectoryURL?
- Subject: Re: NSOpenPanel may not respond to setDirectoryURL?
- From: Mike Abdullah <email@hidden>
- Date: Thu, 08 Mar 2012 17:17:24 +0000
On 8 Mar 2012, at 14:54, Howard Moon wrote:
> On Mar 8, 2012, at 6:21 AM, Mike Abdullah wrote:
>>>
>>> I'm really not that familiar with Objective-C and Cocoa yet, but I'm getting a warning for something that works fine, and I hate warnings. The warning is:
>>>
>>> 'NSOpenPanel' may not respond to '-setDirectoryURL:'
>>>
>>> I know that setDirectoryURL: is an NSSavePanel message, but NSOpenPanel derives from NSSavePanel, so why does it give me this warning? As I said, it works fine (i.e., the open panel starts out in the folder I specified). Is there a case where it WON'T work? If not, then is there a way to prevent the warning?
>>
>> That method was introduced in 10.6. Are you perhaps building against the 10.5 SDK or even earlier?
>>
>
> Ah, yes, that's it. But I do need to support 10.5. What can I use that works in 10.5 thru 10.7?
Options:
A)
Bump the SDK setting to 10.6, keeping the deployment target at 10.5. Don't call any 10.6-only methods when running on 10.5. (i.e. check -respondsToSelector: or similar)
B)
Declare the new methods as categories in headers, but don't actually implement the methods. That will tell the compiler how to call those new methods. Once again, don't call 10.6-only methods while running on 10.5
C)
Fallback to older, deprecated APIs. e.g. -directory
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