Question

How can you dynamically add values to UIPickerView at runtime.

I’m using the following code to populate a UIPickerView statically. Need to add values dynamically at run time, for e.g. Three, Four etc.

- (NSString *) pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{      NSString *title = nil;     if(row==0){         title = @'One';      }     if(row==1){         title = @'Two';      } 

Answer 1

If you had an array of the titles, you could use something like:

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {   return [titles objectAtIndex:row]; } 

The titles will be refreshed when you call [pickerView reloadAllComponents] (or reloadComponent: if you have more than one column and only want to refresh one of them).