I am trying to get Quicklook working in an app of mine. I'm not sure all these
details are relevant, but better to have more than less info. I have a table
that shows the number of files in certain folders on a network volume. In one
column is the number of files, another column shows the first couple files
names, as a string that was concatenated. My data object for each row has an
array that stores NSURL's of all of the files. I want the quicklook to show
previews for all the files in the folder.
So far I am successful in storing the NSURL's and to retrieve them. When I
bring up the quicklook panel, I can see the number of items, it displays a
generic icon of the first file, and I can cycle through to other files, and it
displays the name of each file correctly. BUT, the preview panel will not show
me a real icon or preview of any file, only the generic blank white page icon.
If I override the panel methods:
- (id <QLPreviewItem>)previewPanel:(QLPreviewPanel *)panel
previewItemAtIndex:(NSInteger)index
and
- (NSURL *)previewItemURL
to return an NSURL to a file on my hard drive, then the quicklook preview works
properly and I see the actual image of the PDF. If I override those methods to
use a hard coded NSURL to the same file on a network volume, the generic blank
white-document icon shows up.
So, what am I missing? I don't understand why this works locally but not on a
network volume. The Finder shows the network item's quicklook preview properly.
Here's my methods:
- (NSURL *)previewItemURL
{
//return [NSURL
URLWithString:@"file://localhost/Users/chris.paveglio/Desktop/Using%20Native%20Ai%20Files.pdf"];
return[NSURLURLWithString:@"file://Volumes/Clippers2011/DTDWriteup/Team%203/%20%20Prep/Using%20Native%20Ai%20Files.pdf"];
}
- (id <QLPreviewItem>)previewPanel:(QLPreviewPanel *)panel
previewItemAtIndex:(NSInteger)index
{
//actual methods to use
//NSInteger selectedRow = [myTableView selectedRow];
//PrepworkItem*p = [[pwArrayControllerarrangedObjects]
objectAtIndex:selectedRow];
//return [[p urlToCurrentItems] objectAtIndex:index];
//testing return values
//return [NSURL
URLWithString:@"file://localhost/Users/chris.paveglio/Desktop/Using%20Native%20Ai%20Files.pdf"];
return[NSURLURLWithString:@"file://Volumes/Clippers2011/DTDWriteup/Team%203/%20%20Prep/Using%20Native%20Ai%20Files.pdf"];
}
Thanks,
Chris
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