iPhone：如何将文档目录的内容作为NSMutableArray获取？

Question

How do I get the contents of the documents directory as a NSMutableArray?

I can get it as a normal NSArray, but as soon as I try to do anything with that array, my app crashes.

Thanks

Answer 1

也许这可以工作： NSMutableArray *array = [[[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:NULL] mutableCopy];

Answer 2

This sounds like you might be allocating the array incorrectly. Can you attach some code samples of your creation of the NSMutableArray instance and then how you are inserting elements into that mutable array?

Answer 3

You can't. But you can easily create a mutable array from a non-mutable one:

NSMutableArray* mutableArray = [NSMutableArray arrayWithArray: someOtherArray];