Hello,
I'm using NSTokenField and I've implemented the delegate method
"tokenField:completionsForSubstring:indexOfToken:indexOfSelectedIted:"
to provide autocompletion. However, I don't have the list of
autocompletions stored locally; I have to make a call to an API over
the Internet, and I want to do this asynchronously so that there
aren't any pauses while typing.
Currently my delegate method is set up so that I first check my local
cache to see if the completion list is there for the given substring,
and I return it if so. If not, I make the asynchronous call and then
return 'nil'. In my asynchronous callback method, I populate my local
cache with the returned completion list. However, the auto complete
list never shows up because I initially returned 'nil' in the delegate
method.
I'm wondering if there's a way to programatically trigger the delegate
method from my callback function? Or, if using delegate method is the
wrong way to go for asynchronous completions, what is the best way
that I might accomplish this? I believe the Safari 4 Google
suggestions search field is doing something similar to what I want to
do, but I'm not sure how it's implemented.
Thanks,
Erik
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