如何對齊每行右側的選取器視圖標題文本？

Question

如何將UIPickerView中每行的標題與右側對齊？

在此先感謝。

Answer 1

您可以實現委託的pickerView:viewForRow:forComponent:reusingView:方法，並從它返回的UILabel實例：

- (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; 
}