Reading and Writing Values to a PList

Writing Values to a Plist:

-(int) saveBillingInformation:(NSString *)creditCardNumber setCCVNumber:(NSString*) ccvNumber setExpirationDate:(NSString*) expirationDate

{

   

    

    NSError *error;

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); //1

    NSString *documentsDirectory = [paths objectAtIndex:0]; //2

    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"data.plist"]; //3

    

    NSFileManager *fileManager = [NSFileManager defaultManager];

    

    if (![fileManager fileExistsAtPath: path]) //4

    {

        // 5

        NSString *bundle = [[NSBundle mainBundle] pathForResource:@"ccinfo" ofType:@"plist"];

        

        [fileManager copyItemAtPath:bundle toPath: path error:&error]; //6

    }

    

    NSMutableDictionary *data = [[NSMutableDictionary alloc] initWithContentsOfFile: path];

    

    //here add elements to data file and write data to file

    

    [data setObject:creditCardNumber forKey:@"creditCardNumber"];

    

    [data setObject:ccvNumber forKey:@"ccvCode"];

    [data setObject:expirationDate forKey:@"expirationDate"];

    

    [data writeToFile: path atomically:YES];

    

    return 1;

    

}

Reading a Value to a Plist:

-(NSMutableDictionary *) getPListBillingInfo

{

    

    NSError *error;

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); //1

    NSString *documentsDirectory = [paths objectAtIndex:0]; //2

    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"data.plist"]; //3

    

    NSFileManager *fileManager = [NSFileManager defaultManager];

    

    if (![fileManager fileExistsAtPath: path]) //4

    {

        // 5

        NSString *bundle = [[NSBundle mainBundle] pathForResource:@"ccinfo" ofType:@"plist"];

        

        [fileManager copyItemAtPath:bundle toPath: path error:&error]; //6

    }

    

    NSMutableDictionary *creditCardInfoDict = [[NSMutableDictionary alloc] initWithContentsOfFile: path];

    

    //load from savedStock example int value

    return creditCardInfoDict;

    // get the values from the NSMutableDictionary object

    

}