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objective-ciosuibuttonibaction

How to define which button pressed if they both have same IBAction?

I have two UIButtons (I create them using IB), which connected to File's owner with the same IBAction, how can i define which of them are pressed?

Solution

  • Your action can be implemented like this:

    - (IBAction) buttonTapped: (id) sender
// you can also replace id with UIButton*

    Then inside this method you can check by -isEqual: method

    - (IBAction) buttonTapped: (id) sender
{
   if ([sender isEqual:referenceToOneOfYourButtons]) {
   // do something
   }
   else if ([sender isEqual:referenceToTheOtherButton]) {
   ...
   }
}

    Alternatively you can set up different values to tag property of buttons and then:

    - (IBAction) buttonTapped: (UIButton*) sender
{
   const int firstButtonTag = 101;
   const int otherButtonTag = 102;

   if (sender.tag == firstButtonTag) {
   ...
   }
   else if (sender.tag == otherButtonTag) {
   ...
   }
}

    You need to set up this tag either in your .xib or in code.