method.java

//This is what I'm doing but getting RadioButton width as 0. :(

public void addPresenter(int icon){
        RadioButton presenter = new RadioButton(getContext());

        //Configura atributos padrão
        Drawable drawable = getResources().getDrawable(icon);
        presenter.setCompoundDrawables(drawable, null, null, null);
        presenter.setButtonDrawable(null);

        presenterSelector.addView(presenter);
        presenter.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        presenter.getLayoutParams().height = presenter.getMeasuredHeight();
        presenter.getLayoutParams().width = presenter.getMeasuredWidth();

        presenter.requestLayout();

        presenterSelector.requestLayout();

        //updatePresent
}

//This method is used later to set each RadioButton background.
private void updatePresenterSelectorBackground(){
        int childCount = presenterSelector.getChildCount();
        for(int i = 0; i < childCount; i++){
            View rb = presenterSelector.getChildAt(i);
            if(i == 0)
                //rb.setBackgroundColor(0x00000000);
                rb.setBackgroundResource(R.drawable.presenter_radiobutton_left);
            else if (i == childCount - 1)
                rb.setBackgroundResource(R.drawable.presenter_radiobutton_right);
            else
                rb.setBackgroundResource(R.drawable.presenter_radiobutton_center);
            rb.requestLayout();
        }

        presenterSelector.requestLayout();
}

what_im_trying_to_do_by_code.xml

<!-- This is what I'm trying to do throught code. -->

<RadioButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:padding="8dp"
                android:background="@drawable/presenter_radiobutton_left"
                android:button="@null"
                android:drawableLeft="@drawable/fire"
                />