UTIs (short for Unifrom Type Identifiers) is Apple's answer to identify data handled within the system. In brief, UTI is a unique identifier for a particular type of data or a file. For e.g. com.adobe.pdf represents a PDF document and public.png represents a PNG image. Whenever user opens this type of file, iOS hands off that file to specific app.
System will allow multiple apps to register with the same UTI. In this case, OS will show a prompt with the list of capable apps that can open that file. For e.g. when share a PDF document, the OS will be shown a prompt with the options such as iBooks, RaddleDocs, Chrome, EasyPrint, Kindle, Dropbox, etc.
The full list of UTIs can be found here https://developer.apple.com/library/ios/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html
Below is the image which is popped up by the OS when Airdrop file is received.
References:
No comments:
Post a Comment