iphone - 如何将每行上的选择器 View 标题文本向右对齐？

Question

如何将 UIPickerview 中每一行的标题向右对齐？

提前致谢。

Answer 1

您可以实现委托(delegate)的 pickerView:viewForRow:forComponent:reusingView: 方法并从中返回 UILabel 实例:

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
    UILabel* label = (UILabel*)view;
    if (view == nil){
       label= [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 190, 44)];

       label.textAlignment = UITextAlignmentRight;
       //Set other properties if you need like font, text color etc
       ...
    }
    label.text = [self textForRow:row forComponent:component];
    return label;
}