要将HorizontalGridView设置为wrap_content，您可以按照以下步骤进行操作：

1. 在您的布局文件中，将HorizontalGridView的宽度设置为wrap_content。

2. 创建一个自定义的RecyclerView.ItemDecoration类，用于设置HorizontalGridView的间距。

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

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

    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        outRect.left = spacing;
        outRect.right = spacing;
        outRect.bottom = spacing;

        // Add top margin only for the first item to avoid double space between items
        if (parent.getChildAdapterPosition(view) == 0) {
            outRect.top = spacing;
        } else {
            outRect.top = 0;
        }
    }
}

3. 在您的Activity或Fragment中，使用GridSpacingItemDecoration类将间距应用到HorizontalGridView。

HorizontalGridView horizontalGridView = findViewById(R.id.horizontalGridView);
GridLayoutManager layoutManager = new GridLayoutManager(this, numberOfColumns);
horizontalGridView.setLayoutManager(layoutManager);

// 设置间距
int spacing = getResources().getDimensionPixelOffset(R.dimen.grid_spacing);
GridSpacingItemDecoration itemDecoration = new GridSpacingItemDecoration(spacing);
horizontalGridView.addItemDecoration(itemDecoration);

通过以上步骤，您可以将HorizontalGridView设置为wrap_content，并且应用间距使其适应您的需求。