Leanback VerticalGridFragment删除顶部间距 [英] Leanback VerticalGridFragment remove top spacing

问题描述

我正在使用VerticalGridFragment以类似网格的布局显示项目 我不需要显示搜索或标题，并且我希望这些行从屏幕顶部开始，没有任何边距.有帮助吗?

I am using VerticalGridFragment to display items in a grid-like layout I don't need to show search or title and I want the rows to start from top of the screen without any margins. Any help?

推荐答案

您需要创建名称为CustomVerticalGridPresenter的新类，并在其中添加关注代码

You need create new class with name CustomVerticalGridPresenter and put followig code in it.

public class CustomVerticalGridPresenter extends VerticalGridPresenter {

    VerticalGridView gridView;

    CustomVerticalGridPresenter(int zoom, boolean val){
        super(zoom, val);
    }

    @Override
    protected void initializeGridViewHolder(ViewHolder vh) {
        super.initializeGridViewHolder(vh);
        gridView = vh.getGridView();
        int top = 20;//this is the new value for top padding
        int bottom = gridView.getPaddingBottom();
        int right = gridView.getPaddingRight();
        int left = gridView.getPaddingLeft();
        gridView.setPadding(left,top,right,bottom);
    }
}

然后在verticalgridfragment类中使用

Then in verticalgridfragment class use

CustomVerticalGridPresenter videoGridPresenter = new 
CustomVerticalGridPresenter(ZOOM_FACTOR, false);

代替

VerticalGridPresentervideoGridPresenter = new VerticalGridPresenter(ZOOM_FACTOR, false);

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