Check if file exist or not?

Question

hi all, i am new to iPhone programming. What is the proper way to check that whether a file is exist or not?

Answer 1

BOOL isDirectory = NO;
if ( [[NSFileManager defaultManager] 
  fileExistsAtPath:path 
  isDirectory: &isDirectory )

Answer 2

To put it in more detail:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

if ([[NSFileManager defaultManager] fileExistsAtPath:documentsDirectory]){

//Do something... 
}

You can append the actual file name to "documentsDirectory" like this: [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.jpg", spidermanpic]].

The isDirectory option in the answer above is used to check if the path is a directory or a file. Please keep in mind that it is a pointer. It wont work without the "&".