android未经检查的单选按钮已经检查过

<RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rg"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.radiogroup.MainActivity" >

    <RadioButton
        android:id="@+id/rb_true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:gravity="center_vertical" />

    <RadioButton
        android:id="@+id/rb_false"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:gravity="center_vertical" />

</RadioGroup>

i have one radio group in which i have 2 radio button

我有一个广播组,其中我有2个单选按钮

now if radio button 1 is selected and if i tap on same radio button(radio button 1) it should be unchecked ..

现在,如果选择单选按钮1,如果我点击相同的单选按钮(单选按钮1),则应该取消选中它。

it should work astoggle.

它应该工作astoggle。

3 个解决方案

#1

This should serve the purpose.

这应该有助于达到目的。

radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    @Override
    public void onCheckedChanged(RadioGroup arg0, int id)
    {
    RadioButton checkedRadioButton = (RadioButton)radioGroup.findViewById(id);

    boolean isChecked = checkedRadioButton.isChecked();

    if (isChecked)
    {
    Toast.makeText(getApplicationContext(), 
               checkedRadioButton.getText(),Toast.LENGTH_LONG).show();
    radioButton = (String) checkedRadioButton.getText();
    checkedRadioButton.setChecked(false);
    }
    else
        checkedRadioButton.setChecked(true);
    }});

Also, don't forget to initialize RadioGroup

另外,不要忘记初始化RadioGroup

3 个解决方案

#1

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