iOS中的多个单选按钮 [英] multiple radio button in ios

问题描述

我有四个不同用途的收音机.我为所有四个添加了相同的选择器.在选择器方法中，我为所有四种类型的单选按钮编写了代码.因此，它增加了行数.那么编写相同代码的最佳方法是什么.

I have four different radio for different purpose. I have added the same selector for all four. And in selector method I have written code to for all four type of radio button. So it increases number of lines. So what is the best way to write the same code.

(void)checkBoxSelected:(id)sender{    
  switch ([sender tag]) {
    case 1:
        if([checkBoxDisel isSelected]==YES)
        {
            [checkBoxDisel setSelected:NO];
            [checkBoxPetrol setSelected:NO];
        }
        else{
            [checkBoxDisel setSelected:YES];
            [checkBoxPetrol setSelected:NO];
        }

        break;
    case 2:
        if([checkBoxPetrol isSelected]==YES)
        {
            [checkBoxPetrol setSelected:NO];
            [checkBoxDisel setSelected:NO];
        }
        else{
            [checkBoxPetrol setSelected:YES];
            [checkBoxDisel setSelected:NO];
        }
        break;
    case 3:
        if([checkBoxYes isSelected]==YES)
        {
            [checkBoxYes setSelected:NO];
            [checkBoxNo setSelected:NO];
        }
        else{
            [checkBoxYes setSelected:YES];
            [checkBoxNo setSelected:NO];
        }

        break;
    case 4:
        if([checkBoxNo isSelected]==YES)
        {
            [checkBoxNo setSelected:NO];
            [checkBoxYes setSelected:NO];
        }
        else{
            [checkBoxNo setSelected:YES];
            [checkBoxYes setSelected:NO];
        }
        break;
    case 5:
        if([checkBoxMale isSelected]==YES)
        {
            [checkBoxMale setSelected:NO];
            [checkBoxFemale setSelected:NO];
        }
        else{
            [checkBoxMale setSelected:YES];
            [checkBoxFemale setSelected:NO];
        }

        break;
    case 6:
        if([checkBoxFemale isSelected]==YES)
        {
            [checkBoxFemale setSelected:NO];
            [checkBoxMale setSelected:NO];
        }
        else{
            [checkBoxFemale setSelected:YES];
            [checkBoxMale setSelected:NO];
        }
        break;
    default:
        break;
  }
}

推荐答案

以下几行:

if([checkBoxYes isSelected]==YES)
{
    [checkBoxYes setSelected:NO];
    [checkBoxNo setSelected:NO];
}
else{
    [checkBoxYes setSelected:YES];
    [checkBoxNo setSelected:NO];
}

可以改写为

checkBoxYes.selected = !checkBoxYes.selected;
checkBoxNo.selected = NO;

在您巨大的 switch 中，每种情况都一样.

And the same goes for every case in your huge switch.

您是否考虑过使用分段控件?

Have you considered using segmented controls instead?

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