How do I replace the existing action of a(n?) UIButton?

Question

So far, I've been using

[button1 addTarget:self action:@selector(newAction) forControlEvents:UIControlEventTouchUpInside];

which adds an additional action (I think). How can I replace the initial action with a new one?

To remove all previous actions: ```[button1 removeTarget: nil action: NULL forControlEvents: UIControlEventAllEvents]``` - see http://stackoverflow.com/questions/3340825/uibutton-remove-all-target-actions — jcsahnwaldt Reinstate Monica, Oct 12 '13 at 20:20

score 14 · Accepted Answer · edited Sep 22 '22 at 20:33

You can remove a target for a specific action like this:

[button1 removeTarget: self action: @selector(oldAction) forControlEvents: UIControlEventTouchUpInside]

Or, better yet, you can remove all targets from your button like this:

[button1 removeTarget: nil action: NULL forControlEvents: UIControlEventAllEvents]

Then, you can add your new target action:

[button1 addTarget:self action:@selector(newAction) forControlEvents: UIControlEventTouchUpInside];

That's pretty much it!

score 4 · Answer 2 · answered May 31 '10 at 18:42

4

You first have to remove the current action with removeTarget:action:forControlEvents: and then add the new one with addTarget:action:forControlEvents:.

answered May 31 '10 at 18:42

BAndonovski

3,309
1
17
19

How do I replace the existing action of a(n?) UIButton?

2 Answers2

Linked