IPhone: cannot copy from MainBundle to NSDocumentDirectory

Question

I am trying to copy several image files from the MainBundle / SampleImages folder to the NSDocumentDirectory / Library folder of the application, but I cannot do this. I checked that the images are in the .app / Mainbundle / SampleImages directory, and I also checked that the library folder is created in NSDocumentsDirectory, but the files are not copied.

I tried the two approaches below, but to no avail. here is the code i use to copy files.

First method

NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];     
        NSString *documentLibraryFolderPath = [documentsDirectory stringByAppendingPathComponent:@"Library"];

        NSString *resourceSampleImagesFolderPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"SampleImages"];
        NSData *mainBundleFile = [NSData dataWithContentsOfFile:resourceSampleImagesFolderPath];
        [[NSFileManager defaultManager] createFileAtPath:documentLibraryFolderPath
                                                contents:mainBundleFile 
                                              attributes:nil];

Second method

NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];     
        NSString *documentSampleImagesFolderPath = [documentsDirectory stringByAppendingPathComponent:@"Library"];

        NSString *resourceSampleImagesFolderPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"SampleImages/"];
        [fileManager createDirectoryAtPath: documentSampleImagesFolderPath attributes:nil];
        if([fileManager copyItemAtPath:resourceSampleImagesFolderPath toPath:documentSampleImagesFolderPath error:&error]) {
            NSLog(@"success");
        }
        else {
            NSLog(@"Failure");
            NSLog(@"%d",error);
        }

I spent a couple of hours finding a solution, any help here would be greatly appreciated.

thank

Shumays Ul Haq

Answer 1

, . , SDK , .

NSFileManager *fileManager = [NSFileManager defaultManager];
        NSError *error;
        NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,
                                                             NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString *documentDBFolderPath = [documentsDirectory stringByAppendingPathComponent:@"Library"];

        NSString *resourceDBFolderPath = [[[NSBundle mainBundle] resourcePath]
                                              stringByAppendingPathComponent:@"SampleImages"];
            [fileManager copyItemAtPath:resourceDBFolderPath toPath:documentDBFolderPath error:&error];