[_durationPicker selectRow: row inComponent: 0 animated: NO];
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView - (NSInteger) pickerView: (UIPickerView *) picker numberOfRowsInComponent: (NSInteger) component - (NSString *) pickerView: (UIPickerView *) picker titleForRow: (NSInteger) row forComponent: (NSInteger) component - (void) pickerView: (UIPickerView *) picker didSelectRow: (NSInteger) row inComponent: (NSInteger) component