Using NSFileManager to return if directory does not exit [duplicate]

Question

This question already has answers here:

How to check if a directory exists in Objective-C (3 answers)

Closed 8 years ago.

I have the following code that returns an NSArray of the names of files in a given directory. This works fine when the directory exists but what I would like to know is how I can first check whether or not the directory at directoryPath actually exists.

NSString *directoryPath = [documentsDirectory stringByAppendingPathComponent:folderName];
NSArray *directoryContents = [[NSFileManager defaultManager]contentsOfDirectoryAtPath:directoryPath error:nil];

Answer 1

The NSFileManager class has a built in method, which is used to check if a file exists at a path or not.

The function goes like this :

[fileManagerObject fileExistsAtPath : @"PUT_YOUR_FILE_PATH_HERE" isDirectory : YES]; //If its a file that you're looking to check then put isDirectory as NO, but if its a folder then enter YES as the parameter

Here's how you would typically use it in your code :

NSFileManager *fileManager = [[NSFileManager alloc] init];
if([fileManager fileExistsAtPath:@"FILE_PATH_HERE" isDirectory:NO] == YES)
{
   //Yes. The file exists, continue with your operation.
}
else
{
   //No. The file doesn't exist.
}

Answer 2

Use NSFileManager's fileExistsAtPath:isDirectory: method.

Answer 3

fileExistsAtPath:isDirectory:

Return Value YES if a file at the specified path exists or NO if the file’s does not exist or its existence could not be determined.

Apple Documentation for NSFileManager

Answer 4

Following NSFileManger API can give the desired results:

fileExistsAtPath:isDirectory:

Answer 5

Use this :

    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *pathToDocumentsDir = [paths objectAtIndex:0];
    BOOL isDir;
    NSString *subfolder = [pathToDocumentsDir stringByAppendingPathComponent:fileExistsAtPath:YOUR_DIRECTORY_NAME];
    if (![fileManager fileExistsAtPath:subfolder isDirectory:&isDir]) {

//No directory exist
         [fileManager createDirectoryAtPath:subfolder withIntermediateDirectories:NO attributes:nil error:nil];
    }
else{
//directory exist
}

Answer 6

Sample code:

NSString *directoryPath = [documentsDirectory stringByAppendingPathComponent:folderName];
BOOL isDirectory;
BOOL isExists = [[NSFileManager defaultManager] fileExistsAtPath:directoryPath isDirectory:&isDirectory];
if (isExists) {
    /* file exists */
    if (isDirectory) {
        /* file is a directory */

    }
 }