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Re: problems in runModal in NSOpenPanel used with defaults
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Re: problems in runModal in NSOpenPanel used with defaults


  • Subject: Re: problems in runModal in NSOpenPanel used with defaults
  • From: Corbin Dunn <email@hidden>
  • Date: Fri, 26 Sep 2008 10:18:07 -0700

Howdy spartan,

Oh! A few little tips:

On Sep 26, 2008, at 3:11 AM, spartan g wrote:

Hi,
I am writing an utility which needs to open a panel to browse files and
select one.



- (IBAction)browseClicked:(id)sender

{

NSOpenPanel *panel = [NSOpenPanel openPanel];

if ([panel runModal]) {

           NSArray *filenames = [panel filenames];

NSString *filename = [filenames objectAtIndex:0];

Always check the array length first, or just use [panel filename];



    if (filename){

printf("\n browseClicked: filename = %s \n", [filename cString]);

Just a side note: most cocoa people move to NSLog, but printf still works. Try:
NSLog(@"%@", filename); -- much easier!




if ([appToOpenText stringValue] != NULL ){

nil is preferred to NULL.



       [appToOpenText setStringValue: filename];

}

else  printf("\n browseClicked: appToOpenText has NULL value \n");

   }

    else printf ("\n *** browseClicked: Filename is NULL *** \n");

}

}
The filename chosen is assigned to the textfield. I have used defaults to
synchronize this filename and storing it in a pList file.
[_defaults setObject: [appToOpenText stringValue] forKey: @"AppToOpen" ];

It seems strange to use the user defaults as your model to store objects, but i'm sure there is a reason you do this.




[_defaults synchronize];

You probably don't want to hold onto the userdefaults instance as an ivar, and instead always query it with [NSUserDefaults standardUserDefaults]. It may be possible that something is calling resetStandardUserDefaults, and blowing away the old instance.


corbin

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