如何在RecyclerView中使一个视图比其他视图更大？

public class CustomLayoutManager extends RecyclerView.LayoutManager {
    // 自定义LayoutParams类
    public static class CustomLayoutParams extends RecyclerView.LayoutParams {
        public boolean isBig; // 是否是较大的视图

        public CustomLayoutParams(Context c, AttributeSet attrs) {
            super(c, attrs);
        }

        public CustomLayoutParams(int width, int height) {
            super(width, height);
        }

        public CustomLayoutParams(ViewGroup.MarginLayoutParams source) {
            super(source);
        }

        public CustomLayoutParams(ViewGroup.LayoutParams source) {
            super(source);
        }

        public CustomLayoutParams(RecyclerView.LayoutParams source) {
            super(source);
        }
    }

    @Override
    public RecyclerView.LayoutParams generateDefaultLayoutParams() {
        return new CustomLayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    }

    @Override
    public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
        detachAndScrapAttachedViews(recycler);

        int itemCount = getItemCount();
        if (itemCount == 0) {
            return;
        }

        int width = getWidth();
        int height = getHeight();

        int bigViewPosition = -1; // 较大视图的位置
        int smallViewWidth = width / 2; // 较小视图的宽度

        // 遍历所有子视图
        for (int i = 0; i < itemCount; i++) {
            View view = recycler.getViewForPosition(i);
            addView(view);

            measureChildWithMargins(view, 0, 0);

            CustomLayoutParams lp = (CustomLayoutParams) view.getLayoutParams();

            if (lp.isBig) {
                // 较大视图
                int bigViewWidth = width; // 较大视图的宽度
                int bigViewHeight = height; // 较大视图的高度
                layoutDecorated(view, 0, 0, bigViewWidth, bigViewHeight);
                bigViewPosition = i;
            } else {
                // 较小视图
                int smallViewHeight = height / 2; // 较小视图的高度
                int left = smallViewWidth * (i - (bigViewPosition != -1 && i > bigViewPosition ? 1 : 0));
                int top = bigViewPosition != -1 && i > bigViewPosition ? smallViewHeight : 0;
                int right = left + smallViewWidth;
                int bottom = top + smallViewHeight;
                layoutDecorated(view, left, top, right, bottom);
            }
        }
    }
}

RecyclerView recyclerView = findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new CustomLayoutManager());