Question

I have an NSTimer that has an NSNumber in its userInfo

fireTimer = [NSTimer scheduledTimerWithTimeInterval:6.0 
                                             target:self 
                                           selector:@selector(fireTileAddingToColumn:) 
                                           userInfo:myNumber 
                                            repeats:YES];

After the NSTimer is created and has run a couple of times, I would like to be able to change the value of myNumber and have it reflect in fireTileAddingToColumn: I have not had any luck getting this to work. Does anyone have any suggestions?

Answer 1

You can always pass an object holding the userInfo to the timer:

@interface Holder
@property id data;
-(id) initWithData: (id) data;
@end

// implement it

Holder *holder = [[Holder alloc] initWithData:myNumber];
fireTimer = [NSTimer scheduledTimerWithTimeInterval:6.0 target:self
             selector:@selector(fireTileAddingToColumn:) holder
              repeats:YES];

[Holder setData: myNumber2];

and the data change will be reflected in the selector