how can I have itunes uploading an image to the directory of my app on iOS
like user selects an png from her computer and upload that image to the file system sandbox of the app
thanks!
The feature you're looking for is called 'iTunes File Sharing'. With some googling you will be able to find plenty of tutorials about this, such as: http://www.raywenderlich.com/1948/how-integrate-itunes-file-sharing-with-your-ios-app