I've seen various methods for checking whether the returned media type in -imagePickerController:didFinishPickingMediaWithInfo: is video. For example, my way: - (void)imagePickerController:(UIImag...

I would like my app to appear in the UIActivityViewController for text, in other apps. For example, when sharing from the Notes app as shown below. Adding the following to the Info.plist didn't ...

I am trying to find out the LSItemContentTypes to be have a location in the maps app share to my app. As an example of what I require is: searching for a location in maps tapping on the pin ta...

Apple's documentation for UIDocumentInteractionController presentOpenInMenuFromBarButtonItem:animated: method states that "If there are no registered apps that support opening the document, the doc...

I've read a lot of blog posts and SO-questions about Uniform Type Identifiers and how OS X handles file types. However, there are still some things I just don't get: How are UTIs created by the s...

My application uses the following NSApplicationDelegate function. - (void)application:(NSApplication*)sender openFiles:(NSArray*)filenames; I want to use this function to enable the user to drag...

I have an app which is something of a generic file manager. I would like the "Open in..." functionality present in apps using QLPreviewController, UIDocumentInteractionController, etc to be able to...

Read the document of Developer Library, the identifier for doc is "com.microsoft.word.doc". But what is the identifier for docx??

Possible Duplicate: Get GMT Time in Java I have taken the reference of the below 2 link : link1 link2 But I want the GMT date in milliseconds. Thanks In Advance.

I'm trying to create / export an exclusive UTI type for my iOS app (very similar to how Instagram exclusively handles the UTI com.instagram.exclusivegram). Basically, I want com.photoapp.photo to ...

I've read all the tickets about this issue, but I still don't get it right. I have a non-document OSX app (for OSX Lion and MountainLion). I want this app to export and import custom data, associat...

I am currently displaying a UIDocumentInteractionController so that the user of my App can open a File in a different App. The controller pops up and lists the App with no problem. However, it also...

I'm trying to find some way in Cocoa to translate from file extensions to Uniform Type Identifiers. That is, I want to find some way of doing this: ".jpg" => "public.jpeg" ".html" => "public...

How do I send a file to a different App knowing which UTI the App supports? Lets say the file has no file extension, but I happen to know the UTI of the file. I tried the following: // target is ...

Scenario: I like to define the allowed file types (content types) in the Info.plist file of my Cocoa application. Therefore, I added them like the following example shows. # Extract from Info.pli...

In Xcode 4 there are lists for "document types", "imported UTIs" and "exported UTIs" in project info. I know what document types are, but what are the imported/exported UTIs for? Do I need to decla...