change picker value based on another picker values

Question

I am using two UIPickerView. Based on first, I need change values in another picker view.

Any idea how to get this done?

Note: I am using CCPickerView.

Answer 1

i've done same thing in my project., here is the solution..

- (NSInteger)numberOfItemsInPickerView:(CPPickerView *)pickerView
{
   if (pickerView.tag == 110)
   {
      return [picker_1_ary count];
   }
   else
   {
      return [picker_2_ary count];
   }
}

- (NSString *)pickerView:(CPPickerView *)pickerView titleForItem:(NSInteger)item
{
    if (thePickerView.tag == 110)
       return [picker_1_ary objectAtIndex:item];
    else
       return [picker_2_ary objectAtIndex:item];
}


- (void)pickerView:(CPPickerView *)pickerView didSelectItem:(NSInteger)item
{
   if (pickerView.tag == 110)
   {
       [picker_2 reloadAllComponents];
   }
   else
   {
       NSString *value = [[NSString alloc] initWithFormat:@"%@" , [picker_2_ary objectAtIndex:item]];
       NSLog(@"Selected value ::: %@", value);
   }
}

hope it helps., Thank you..