Question

I need something with this

NSMutableArray *foodArray;

NSMutableArray *ingredientsArray;

[foodArray addObject:Pizza];

and when select Pizza in a PickerView show me in the second row ingredientsArray for the pizza

Answer 1

First, you’ll need to make sure that you’ve implemented

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component

once that is done you’ll need to update the data that is driving your UIPickerView whenever a new row is selected in the first component, then call reloadComponent: on the picker view, passing in the component (in this case 1).