Suppressing “'…' is deprecated” when using respondsToSelector

Question

I\'m supporting 10.4+ by picking the most-current API at runtime:

if ([fileManager respondsToSelector:@selector(removeItemAtPath:error:)])
    [fileManager r         


        

Answer 1

You could just cast fileManager to an id — ids are able to refer to any Objective-C object, so the compiler isn't supposed to check methods which are called on one:

[(id)fileManager removeItemAtPath:downloadDir error:NULL];

shouldn't raise any warnings or errors.

Of course, this raises other problems — namely, you lose all compile-time checking for methods called on the id. So if you misspell you method name, etc, it wont be caught until that line of code is executed.