RecyclerView LayoutManager“一对一"作为Sololearn的级别菜单 [英] RecyclerView LayoutManager "one two one" as Sololearn's levels menu

问题描述

我们如何使LinearLayout管理器像这样:

How can we made LinearLayout manager like this:

我还检查了线性和网格管理器，但在这种情况下，我们似乎需要新的东西.

I also have checked Linear and Grid managers but it seems that in this case we need something new.

推荐答案

我在本主题中发现了同样的问题，并使其符合我的问题:

I found the same problem in this topic and just make it fit my question:

RecyclerView LayoutManager在不同行上的不同跨度计数

我们只需创建 GridLayoutManager 并覆盖方法，然后简单地在Recycler中对其进行设置:

We just create GridLayoutManager and override method, then simplity set it in Recycler:

val layoutManager = GridLayoutManager(context, 2)
layoutManager.spanSizeLookup = object : SpanSizeLookup() {
    override fun getSpanSize(position: Int): Int {
        // 5 is the sum of items in one repeated section
        when (position % 3) {
            0 -> return 2
            1, 2 -> return 1
        }
        throw IllegalStateException("internal error")
    }
}

recycler.layoutManager = layoutManager

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