Question

有什么方法可以修改UIPickerView选中行的颜色

Answer 1

自定义UIPickerView的每一行label
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view;

选中某一行
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component;

取这一行的Label，改变颜色
- (UIView *)viewForRow:(NSInteger)row forComponent:(NSInteger)component;

2个代理，1个方法。