I've seen a couple of iPhone applications that have the functionality to export data to a Google Apps document or spreadsheet. I would like to add similar functionality to my iPhone app. Is there an API for that? How about the other direction - is there a way to get data (say a CSV file) from a Google Apps spreadsheet?
If there isn't one of those, is there a way to directly import a SQLite dump file in iTunes?
Background: the app I'm writing deals with a large number of records, possibly thousands, and rather than expecting people to enter them on that tiny little keyboard, I'd like to be able to take data entered on a real computer. Plus, this iPhone app is replacing a Palm app that I already use, which I have entered hundreds of records, but which has the ability to produce a CSV file.
Check out Google's Doc List API regarding uploading documents. That same API reference has information on retrieving documents.
Here's a sample of document uploading from Google.
来源：https://stackoverflow.com/questions/491584/iphone-sending-data-to-and-retrieving-data-from-google-apps