CODEWITHSUNDEEP
iphoneobjective-cuiviewiosuibutton
cannyboy
cannyboy

Reputation: 24406

Passing object data with UIButton press

I've created a custom UIView class FormDropdown, which contains a question & button in the nib. In the class is also an NSArray property which is supposed to store the various options for the button.

So a button can be placed by doing this, in for instance a viewDidLoad method:

FormDropdown *dropdown = [FormDropdown dropdownWithQuestion:@"This is an example question" andLabel:@"Select one" andOptions:[NSArray arrayWithObjects:@"One", @"Two", @"Three", nil]];
[self.view addSubview:dropdown];

Obviously, I'd like the button to, when tapped, bring up a UIPickerView with the options showing. But I'm stuck on how to send the options to any method. I know I can attach an action to the button like so:

[dropdown.dropdownButton addTarget:self action:@selector(dropdownPressed:) forControlEvents:UIControlEventTouchUpInside];

..but I can't see how I would pass the options from the dropdown.options array to the method?

Upvotes: 6

Views: 5611

Answers (2)

rufo
rufo

Reputation: 5537

I am looking for a way to do that as well... however, it doesn't seem possible.

My possible solution: I think I am going to create a subclass of UIButton, and add a "NSObject *tagObject" property to it.

Anyone seems something wrong about it? (I am using ARC, and I am wondering if that would cause objects to remain in memory - I do not think so).

Upvotes: 0

user102008
user102008

Reputation: 31303

I believe that you can do this by adding an "associative reference" from the UIButton to your object data.

http://developer.apple.com/library/ios/#documentation/Cocoa/Conceptual/ObjectiveC/Chapters/ocAssociativeReferences.html

Upvotes: 1

Related Questions