Question

I would like to open a file with my application when the file is double clicked. I have registered the filetype with the application and the application: openFile: method works fine if I drop a file onto the applications icon. In the apple documentation it says, that this method should also work when the user double clicks a file.

What I am seeing is, the app will activate when the file is opened by double click, but Safari will open the file instead (Trying to open a .webloc file). But the method application: openFile: does not get called 🙁

Here is how i set it up in xcode:

Edit:

I have set the .webloc to open as standart to my application. Also Right clicking “Open With” > “My App” does not work.

Edit 2:
If I rename the file extension to .mp3 or any other, my application will open the file as it should by double clicking it! Strange…

Answer 1

In Xcode, create a new Project using the “Mac OS X :: Cocoa Application” template. Then implement

- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError
{ static NSString *content = @"Empty File";
   return [NSData dataWithBytes: [content UTF8String] 
                         length: 1 + strlen ([content UTF8String])]; }

You will then have a working example to compare to your project.