NSFileHandle fileHandleForReadingAtPath example ios

fileHandleForReadingAtPath:

Returns a file handle initialized for reading the file, device, or named socket at the specified path.

+ (id)fileHandleForReadingAtPath:(NSString *)path

Parameters

path

The path to the file, device, or named socket to access.

Return Value of [NSFileHandle fileHandleForReadingAtPath]

The initialized file handle object or nil if no file exists at path.

Discussion of [NSFileHandle fileHandleForReadingAtPath]

The file pointer is set to the beginning of the file. You cannot write data to the returned file handle object. Use thereadDataToEndOfFile or readDataOfLength: methods to read data from it.

When using this method to create a file handle object, the file handle owns its associated file descriptor and is responsible for closing it.

Example of [NSFileHandle fileHandleForReadingAtPath]

NSString *path = [[NSBundle mainBundle] pathForResource:@"nCode01"
                                                 ofType:@"txt"];
nCode = [NSFileHandle fileHandleForReadingAtPath:path];