Android TV, how to change color of title and color of headeritem?

问题

I want to change title color(Hello Android TV!) and headeritem for row color(GridItemPresenter).

回答1:

To change the list row header style you must use custom ListRowPresenter:

public class CustomListRowPresenter extends ListRowPresenter {
    public CustomListRowPresenter() {
        super();
        setHeaderPresenter(new CustomRowHeaderPresenter());
    }
}

public class CustomRowHeaderPresenter extends RowHeaderPresenter {
    @Override
    public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
        Presenter.ViewHolder viewHolder = super.onCreateViewHolder(parent);
        RowHeaderView rowHeaderView = (RowHeaderView) viewHolder.view;
        rowHeaderView.setTypeface(...);
        rowHeaderView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, ...);
        return viewHolder;
    }
}

Haven't had any direct experience with BrowseFragment, but I expect there is some kind of a custom presenter too.

回答2:

public class CustomListRowPresenter extends ListRowPresenter {
    public CustomListRowPresenter() {
        super();
        setHeaderPresenter(new CustomRowHeaderPresenter());
    }
}

class CustomRowHeaderPresenter extends RowHeaderPresenter {

    @Override
    public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
        HeaderItem headerItem = item == null ? null : ((Row) item).getHeaderItem();
        RowHeaderPresenter.ViewHolder vh = (RowHeaderPresenter.ViewHolder) viewHolder;
        TextView title = vh.view.findViewById(R.id.row_header);
        if(!TextUtils.isEmpty(headerItem.getName())) {
            title.setText(headerItem.getName());
            title.setTextColor(ContextCompat.getColor(FiosTVApplication.getAppContext(),
                    R.color.white));
            title.setTypeface(ResourcesCompat.getFont(title.getContext(), R.font.nhaasgroteskdsstd_bold));
            title.setTextSize(TypedValue.COMPLEX_UNIT_SP,16);
        }
    }
}

回答3:

Another simple way to set color for header text is to override leanback color in xml:

<color name="lb_browse_header_color">#f00</color>

advantage/drawback: it set color for all headers.

来源：https://stackoverflow.com/questions/41780279/android-tv-how-to-change-color-of-title-and-color-of-headeritem

标签

android-tv