iOS multiple UIButtons with same IBAction -how to know which UIButton is clicked

[newlearner]

I have 3 buttons in a single view. All three can be given the same IBAction. But how to know which button was pressed?

I tried implementing the following code:

-(IBAction)callAction:(id)sender {

UIButton *b=(UIButton *)sender;
NSLog(@"button pressed is : %d", [sender tag]);
}

But for all buttons, the answer is always 0.

Is there something I am missing here?

Or is there any other alternative?

Thanks

 

[dejo]

Is there something I am missing here?

Setting the tag values for each of the buttons?

 

[newlearner]

How to set the tag values? I looked under in the documentation for UIButton, but it doesnt have any mention for tags. Could you please guide me?

 

[newlearner]

Got it.

button.tag=0;

Strange it is not mentioned in the docs.

thanks dejo.

 

[chown33]

Read the docs for UIButton's superclass. Then that class's superclass.

 

[newlearner]

Read the docs for UIButton's superclass. Then that class's superclass.

But UIControl and UIView also dont mention about 'tag'.

Am sorry if it sounds silly, am not able to get the correct link for reading about it.

found it.

NSControl mentions it. Not UIControl.

 

[dejo]

NSControl mentions it. Not UIControl.

There is no NSControl in the iPhone SDK. And UIView does have such a property.

 

[KoolStar]

You can set tag numbers for the controls and check against the tag numbers.