Form Value Grabbing

gistfile1.m

//Gather all of the form fields
NSMutableArray *smsValues = [[NSMutableArray alloc] initWithCapacity:3];
NSMutableArray *phoneValues = [[NSMutableArray alloc] initWithCapacity:3];
NSMutableArray *emailValues = [[NSMutableArray alloc] initWithCapacity:3];

NSArray *smsCells = [self.smsTable visibleCells];
NSArray *phoneCells = [self.phoneCallTable visibleCells];
NSArray *emailCells = [self.emailTable visibleCells];
for(NSUInteger i = 0; i < smsCells.count; i++){
    //Does the compiler optimize this?
    NSString *tempSmsText = ((MainCell *)smsCells[i]).textField.text;
    NSString *tempPhoneText = ((MainCell *)phoneCells[i]).textField.text;
    NSString *tempEmailText = ((MainCell *)emailCells[i]).textField.text;

    if(![tempSmsText isEqualToString:@""])[smsValues addObject:tempSmsText];
    if(![tempPhoneText isEqualToString:@""])[phoneValues addObject:tempPhoneText];
    if(![tempEmailText isEqualToString:@""])[emailValues addObject:tempEmailText];
}

NSDictionary *newValues = @{
        @"dnd" : @{
                @"beginTime" : ((DNDCell *) [self.doNotDisturbTable cellForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]]).fieldTextField.text,
                @"endTime" : ((DNDCell *) [self.doNotDisturbTable cellForRowAtIndexPath:[NSIndexPath indexPathForRow:1 inSection:0]]).fieldTextField.text
        },
        @"sms" : [[NSArray alloc] initWithArray:smsValues copyItems:YES],
        @"phone" : [[NSArray alloc] initWithArray:phoneValues copyItems:YES],
        @"email" : [[NSArray alloc] initWithArray:emailValues copyItems:YES]
};