Pass a NSDictionary as parameter to UITapGestureRecognizer

Question

I want to pass a NSArray as a parameter to UITapGestureRecognizer and access it in downloadOptionPressed method. How can I do this ?

The NSArray

NSArray *parameters = [NSArray arrayWithObjects:currentTrack, nil];

Creating the UITapGestureRecognizer

UITapGestureRecognizer *downloadOptionPressed = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(timeFrameLabelTapped:)];
    [downloadOption addGestureRecognizer:downloadOptionPressed];

The downloadOptionPressed method

-(void)downloadOptionPressed:(UIGestureRecognizer*)recognizer{

}

Answer 1

Is there a reason you can't store the information in the owning view controller? Is it for abstraction?

You can always extend UITapGestureRecognizer to carry more data:

@interface UserDataTapGestureRecognizer : UITapGestureRecognizer
@property (nonatomic, strong) id userData;
@end

@implementation UserDataTapGestureRecognizer
@end

...

UserDataTapGestureRecognizer *downloadOptionPressed =
    [[UserDataTapGestureRecognizer alloc] initWithTarget:self
    action:@selector(timeFrameLabelTapped:)];
downloadOptionPressed.userData = parameters;

...

- (void)downloadOptionPressed:(UserDataTapGestureRecognizer *)recognizer {
    NSArray *parameters = recognizer.userData;
}