Yet another Objective-C repo that will remain unmaintained indefinitely or until I can write a Swift version to replace it.

This may no longer be useful since Apple is apparently going to prevent direct UUID input in apps.. See this article and this follow-up article for more information.

Simple, light-weight convenience TextField formatter for dealing with Proximity UUID in a text field, to try and make it easier when having to type in that pain in the ass 32 char value....

• Automatically inserts hyphens at the appropriate spot while typing in a ProximityUUID
• Allows user to Cut/Copy/Paste at any position without it affecting the automatic insertion of said hyphens
• Restrics the ProximityUUID to be at the max 32 characters
• Dead simple to use and unobtrusive

Video:

Usage is really easy. The main things you need to do is just add a UITextField, set the delegate, and then use the proximityUUIDFormatter. Check out the example included with this source to see an example.

One small gotcha: The UITextField attribute Editing Changed has been wired up to the formatProximityUUIDInTextField method. You could obviously just do this manually as well - but I'm lazy and don't like writing code I don't have to.

This solution is inspired by this excellent stackoverflow solution by Mark Amery.

Here is a list of Available Public Methods available by the proximityUUIDFormatter...

• +(NSString *)generateUUID - Quick way to generate a random UUID
• +(NSUUID *)proximityUUIDFromUUID:(id)UUID - Convenience method to allow us to work with either a UUID String or Object
• +(BOOL)isValidProximityUUID:(NSString *)proximityUUID - Is this a valid ProximityUUID?

• +(void)storeValuesInTextField:(UITextField *)textField - Ensures we keep a properly structured, 32-character value.
• +(void)formatTextField:(UITextField *)textField - Handles the actual heavy lifting of formatting/keeping track of cursor position, and all that other jazz...

• Force allow only A-F alpha characters
• Perhaps even create a Keyboard Layout that is specifically designed to make entering these values easier by only showing A-F and 0-9 keys? Hmm? Any takers? meh...

• Mark Amery's Stackoverflow Solution for Credit Card Space Padding/Positioning
• NSHipter's Matt Thompson's NSUUID/CFUUIDRef/UIDevice -uniqueIdentifier/-identifierForVendor Aricle
  • sheesh - I bet he laughed at this title ;)
• Youtube Video of this guy in action

See LICENSE included with this repo. Long story short - I'm a dev, you're a dev - we all make great stuff that works, but we also make shitty stuff that breaks...