Question

I’ve been trying to write a string into a file in iOS5.1, but the file content is always (null). Can you help me figure out the reason?
Here’s my code:

NSString *dir = [NSHomeDirectory() stringByAppendingPathComponent:@"mydirectory"];

NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        NSMutableString *randomString = [NSMutableString stringWithCapacity: 64];

for (int i=0; i<DEFAULT_LENGHT_OF_NOTE_FILE_ID; i++) 
{
    [randomString appendFormat: @"%C", [letters characterAtIndex: arc4random() % [letters length]]];
 }

 NSString* randomFileName = [NSString stringWithFormat:@"%@.html",randomString];
 NSString *filePath = [dir stringByAppendingPathComponent:randomFileName];

 NSString *str = @"Mystr";

//save content to the documents directory
 [str writeToFile:filePath atomically:NO encoding:NSStringEncodingConversionAllowLossy 
                       error:nil];


 NSString *content = [[NSString alloc] initWithContentsOfFile:filePath
                                                        usedEncoding:nil
                                                               error:nil];

 NSLog(@"%@", content);

The NSLog always returns (null). What am i doing wrong?

Sincerely,

Zoli

Answer 1

Change the following

NSString *dir = [NSHomeDirectory() stringByAppendingPathComponent:@"mydirectory"];

to

NSString *dir = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];