Question

I have a problem with my getters and settings, they aren’t being called. I thought I understood how they worked, but it looks like I have a problem…

I know I’m not initializing the DateRangeController view before I use the select button, but knowing its nil I can set values in viewDidLoad. If I do have to initialize it how do I set the nib file etc ?

This is my parent screen, where I’m setting values and getting values

@interface PieChartViewController : UIViewController {
    DateRangeController *nextController;
}
@property (nonatomic, retain) DateRangeController *nextController;
@implementation PieChartViewController
@synthesize nextController;

-(void)viewWillAppear:(BOOL)animated {
    if ([nextController StartDate] == nil) {
        [nextController setStartDate:[NSDate date]];
    }

    // DBStartDate returns nil and yes convertNSDateToDBStringDate works !
    NSString* DBStartDate = [General convertNSDateToDBStringDate:
       [nextController StartDate]];
}
- (void) selectRangeButtonPressed {
    nextController = [[[DateRangeController alloc] 
        initWithNibName:@"DateRange" bundle:nil] autorelease];
    nextController.title = @"Date Range";   
}

Heres my selection / child screen.

@interface DateRangeController : UIViewController  {
NSDate *returnStartDate;
}
-(NSDate*) StartDate;
-(void)setStartDate:(NSDate*) value;
@end
@implementation DateRangeController
-(NSDate*) StartDate {
   return returnStartDate;
}
-(void)setStartDate:(NSDate*) value {
    if (value != returnStartDate) {
       [value retain];
       [returnStartDate release];
       returnStartDate = value;
       NSLog(@"StartDate=%@", returnStartDate);
    }
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)
       nibBundleOrNil {
   if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
       // Custom initialization
       returnStartDate = nil;
   }
   return self;
}
- (void)dealloc {
   [returnStartDate release];
}

Answer 1

try comparing “value” with the isEqualToDate – function instead of the “!=” – operator:

if(![value isEqualToDate: returnStartDate]) { ...}

EDIT: If you need the nextController to store the startDate in the viewWillAppear, you should initialize it there (or, even better, in the viewDidLoad) and not in the buttonPressed – Method, before assigning the startDate.