如何在GridLayoutManager中设置项目的固定高度？

import android.graphics.Rect;
import android.view.View;

import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

public class GridSpacingItemDecoration extends RecyclerView.ItemDecoration {
    private int spacing;
    private int spanCount;

    public GridSpacingItemDecoration(int spacing, int spanCount) {
        this.spacing = spacing;
        this.spanCount = spanCount;
    }

    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        int position = parent.getChildAdapterPosition(view); // item position
        int column = position % spanCount; // item column

        outRect.left = spacing - column * spacing / spanCount; // 左偏移量
        outRect.right = (column + 1) * spacing / spanCount; // 右偏移量

        if (position < spanCount) {
            outRect.top = spacing; // 第一行项目的上偏移量
        }
        outRect.bottom = spacing; // 底部偏移量
    }
}

RecyclerView recyclerView = findViewById(R.id.recycler_view);
GridLayoutManager layoutManager = new GridLayoutManager(this, 2); // 设置网格布局，每行显示2列
recyclerView.setLayoutManager(layoutManager);

int spacingInPixels = getResources().getDimensionPixelSize(R.dimen.spacing); // 定义间距的大小
recyclerView.addItemDecoration(new GridSpacingItemDecoration(spacingInPixels, 2)); // 设置ItemDecoration