ToggleableRadioButton

ToggleableRadioButton

import android.content.Context;
import android.util.AttributeSet;
import android.widget.RadioButton;
import android.widget.RadioGroup;

public class ToggleableRadioButton extends RadioButton {
  public ToggleableRadioButton(Context context) {
    super(context);
  }

  public ToggleableRadioButton(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public ToggleableRadioButton(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
  }

  @Override
  public void toggle() {
    if(isChecked()) {
      if(getParent() instanceof RadioGroup) {
        ((RadioGroup)getParent()).clearCheck();
      }
    } else {
      setChecked(true);
    }
  }
}