#nsfilemanager

Cocoa – Gaining Root Access for NSFileManager

So I need to move system files with NSFileManager in my application and I don’t seem to have root access. What would be the easiest way to go about gaining this privilege? I have looked into the BetterAuthorizationSample code provided by Apple, and I don’t seem how I could have the NSFileManager run its task once its been given approval by the user. If anyone could help me out it would be great!

How to: How to check if a file exists in Documents folder?

How to check if a file exists in Documents folder?

I have an application with In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app.

Now I must check if this HTML file exists, so if true, load this HTML file, else load my default html page.

How I can do that? With NSFileManager I can’t get outside of mainBundle..

Answer: How to check if a…

Here's a handy little NSFileManager extension that gives you easy access to the documents and caches directories for your app...

Yesterday, I tried to use [NSFileManager defaultManager] to delete a file. The file existed but I received an NSError said it didn't. 

According to NSFileManager Class Reference, it said 'In iOS and Mac OS X v 10.5 and later you should consider using [[NSFileManager alloc] init] rather than the singleton methoddefaultManager. Instances of NSFileManager are considered thread-safe when created using [[NSFileManager alloc] init].'

While I was working on my iOS app I came across the need to allow the user to rename an image so I dived into the NSFileManager docs. If your inexperienced with file systems you would notice there lacks any sort of rename method that because you have to use the move method to rename a file. Here is a quick snippet on how to do that:

NSString *newPath = [[oldPath stringByDeletingLastPathComponent] stringByAppendingPathComponent:newFilename];