UIPickerView

-      UIPickerView: This is the spinner that can be used for Selecting names, dates, numbers, etc. Comes with a few methods:

o   - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;

§  Sets number of columns

o   - (NSInteger)pickerView:(UIPickerView*) pickerViewnumberOfRowsInComponent:(NSInteger)component;

§  Sets number of rows

o   - (NSAttributedString *)pickerView:(UIPickerView *)pickerView attributedTitleForRow:(NSInteger)row forComponent:(NSInteger)component;

§  Sets attributes for titles in pickers

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

§  Where properties or data is set in order to make API call or update attribute