重置 Radio 组内的 Radio 按钮 [英] Reset a Radio button inside a Radio group

问题描述

我如何重置单选组内的单选按钮，如下图示例

How I reset a radio button inside a radio group like the image example below

我所有的单选组及其单选按钮都是以编程方式创建的.

All my radio groups and its radio buttons are created programmatically.

我尝试设置 OnClickListener 以在更改之前获取单选按钮值，但是没有帮助.

I tried to to set OnClickListener to get the radio button value before getting changed but, it didn't help.

我在下面发布了答案，请检查.

I posted the answer below, please check it.

推荐答案

我是这样做的:

它是用 C# 编写的，但我认为将其转换为 Java 很容易.

It is in C# but I think it is easy to convert it to Java.

我使用标签来知道此单选按钮之前是否检查过.

I used tag to know if this radio button checked before or not.

False => 未检查

False => It is not checked

真 => 已检查

radiobutton.Tag = false;

radiobutton.Click += SingleChoiceQuestionAlternativeClick;

那么:

private void SingleChoiceQuestionAlternativeClick(object sender, EventArgs e)
    {
        RadioButton questionAlternative = sender as RadioButton;

        if (questionAlternative != null)
        {
            RadioGroup questionAlternatives = questionAlternative.Parent as RadioGroup;

            if (questionAlternatives != null)
            {
                if (questionAlternative.Tag.Equals(false))
                {
                    for (int i = 0; i < questionAlternatives.ChildCount; i++)
                    {
                        RadioButton childRadioButton = questionAlternatives.GetChildAt(i) as RadioButton;

                        if (childRadioButton != null)
                        {
                            childRadioButton.Tag = false;
                        }
                    }

                    questionAlternative.Tag = true;
                }
                else
                {
                    questionAlternative.Tag = false;
                    questionAlternatives.ClearCheck();
                }
            }
        }
    }

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