删除回收器视图网格布局中的默认间距

Question

我正在使用StaggeredGridLayout管理器用于回收器视图

mStaggerGridLayoutManager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager
                .VERTICAL);

现在，我想删除列和行之间的默认间距。类似于这张图片，但只有2列。

Answer 1

你得玩弄边际。不是衬垫。

StaggeredGridLayoutManager为每个网格项设置“30dp”的默认边距。

可以按如下方式更改,

class StaggeredListDecoration extends RecyclerView.ItemDecoration {

    public StaggeredListDecoration() {

    }
    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        super.getItemOffsets(outRect, view, parent, state);
        BaseCard.CARD_TYPE viewType = (BaseCard.CARD_TYPE)view.getTag();
            ((StaggeredGridLayoutManager.LayoutParams) view.getLayoutParams()).leftMargin = 0;
            ((StaggeredGridLayoutManager.LayoutParams) view.getLayoutParams()).rightMargin = 0;
            ((StaggeredGridLayoutManager.LayoutParams) view.getLayoutParams()).topMargin = 0;
            ((StaggeredGridLayoutManager.LayoutParams) view.getLayoutParams()).bottomMargin= 0;
    }
}