Leanback onLayoutLogo

FullWidthDetailsOverviewRowPresenter.java

    protected void onLayoutLogo(ViewHolder viewHolder, int oldState, boolean logoChanged) {
        View v = viewHolder.getLogoViewHolder().view;
        ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams)
                v.getLayoutParams();
        switch (mAlignmentMode) {
            case ALIGN_MODE_START:
            default:
                lp.setMarginStart(v.getResources().getDimensionPixelSize(
                        R.dimen.lb_details_v2_logo_margin_start));
                break;
            case ALIGN_MODE_MIDDLE:
                lp.setMarginStart(v.getResources().getDimensionPixelSize(R.dimen.lb_details_v2_left)
                        - lp.width);
                break;
        }

        switch (viewHolder.getState()) {
        case STATE_FULL:
        default:
            lp.topMargin =
                    v.getResources().getDimensionPixelSize(R.dimen.lb_details_v2_blank_height)
                    - lp.height / 2;
            break;
        case STATE_HALF:
            lp.topMargin = v.getResources().getDimensionPixelSize(
                    R.dimen.lb_details_v2_blank_height) + v.getResources()
                    .getDimensionPixelSize(R.dimen.lb_details_v2_actions_height) + v
                    .getResources().getDimensionPixelSize(
                    R.dimen.lb_details_v2_description_margin_top);
            break;
        case STATE_SMALL:
            lp.topMargin = 0;
            break;
        }
        v.setLayoutParams(lp);
    }