我正在使用无线电组，但 RadioGroup onClick 事件未触发并且getCheckedRadiobuttonID() 方法返回 null.这是我的布局中的元素:

I'm using radio group but RadioGroup onClick event is not firing and the method getCheckedRadiobuttonID() is returning null. Here is the element in my layout:

   <RadioGroup
            android:id="@+id/RG1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:onClick="onRGClick" >

方法

public void onRGClick(View v) {
    Toast.makeText(this, "Test ", 1000).show();
}

推荐答案

这个问题可以用下面的方法解决

This problem can be solved using the following

RadioGroup rg = (RadioGroup) findViewById(R.id.radioGroup1);
        rg.setOnCheckedChangeListener(new OnCheckedChangeListener()
        {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId)
            {
                switch(checkedId)
                {
                case R.id.radio0:
                    // TODO Something
                    break;
                case R.id.radio1:
                    // TODO Something
                    break;
                case R.id.radio2:
                    // TODO Something
                    break;
                }
            }
        });

或者

您可以使用自定义 ID 而不是默认 ID

Alternatively

You can use custom ids rather than default one

  RadioGroup rg = (RadioGroup) findViewById(R.id.radioGroup1);
            rg.setOnCheckedChangeListener(new OnCheckedChangeListener()
            {
                @Override
                public void onCheckedChanged(RadioGroup group, int checkedId)
                {
                    switch(checkedId)
                    {
                    case R.id.male:
                        // TODO Something
                        break;
                    case R.id.female:
                        // TODO Something
                        break;
                    case R.id.other:
                        // TODO Something
                        break;
                    }
                }
            });