How to overwrite files on iphone file directory?

Question

My old question was a bit roughly explained, so I will try it again. I want to develope an app, which simply overwrites files in the iPhone file directory with my own files, but I don´t know the code for the overwriting part.

Can somebody help me?

Answer 1

You can not overwrite files in the iPhones file directory. The only part you as a developer can access for read and write is your application's document directory .

Answer 2

为什么不删除现有文件，以便放置新文件？