How to determine which control was touched?

I have two PickerViews in my view, how do I set my delegates to identify which one to handle? Some kind of if() to validate if the p开发者_JS百科icker that threw the event was the pickerX or pickerY?

Any ideas will be appreciated.

You can have IBOUtlets for the PickerViews like

@property (nonatomic, retain) IBOutlet UIPickerView *firstPickerView; 
@property (nonatomic, retain) IBOutlet UIPickerView *secondPickerView; 

and then in a delegate method do something like this

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:  (NSInteger)component {
  if (pickerView == self.firstPickerView) {
  }
  else if (pickerView == self.secondPickerView) {
  }
}

or you can set tags on the PickerViews in IB and do

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:  (NSInteger)component {
  if (pickerView.tag == 0) {

  }
  else if (pickerView.tag == 1) {
  }
}

When any delegate method is called, it also pass the object on which it is called, lets say in this case.

– pickerView:rowHeightForComponent:

You can identify the particular picker by its TAG id. And yah if else will be used.