检查objective-c中的文件扩展名

Question

how to check the extensions of files in directory or search for certain extension amog different extensions , any suggestion to do that for iphone applications

Best regards

Answer 1

You can use NSFileManager's -contentsOfDirectoryAtPath:error: method to get an array with the contents of a directory (as strings). NSString has a -pathExtension method that makes it easy to get the file extension. All that remains is to iterate over the array looking for strings whose -pathExtension matches the extension you're looking for. Alternately, you could probably use -filteredArrayUsingPredicate: to identify the matching strings.