RecyclerView中最后一个孩子的边距/填充 [英] Margin/padding in last Child in RecyclerView

问题描述

我正在尝试在最后一行添加填充/边距底部，在第一行添加填充/边距顶部.我无法在xml项目中执行此操作，因为它会影响我所有的孩子.

I'm trying to add Padding/Margin Bottom in the last row and Padding/Margin Top in the first row. I can not do it in the item xml as it would affect all of my Childs.

我的RecyclerView适配器中有头文件和子文件，因此我无法使用

I have headers and childs in my RecyclerView Adapter so I can not use the

   android:padding="4dp"
   android:clipToPadding="false"

我需要在每个标题的最后第一行单独使用它

I need to use it individually on the last first row of each header

推荐答案

我在Kotlin中使用它

I use this in kotlin

override fun onBindViewHolder(holder: RecyclerView.ViewHolder(view), position: Int) {
    if (position == itemsList.lastIndex){
        val params = holder.itemView.layoutParams as FrameLayout.LayoutParams
        params.bottomMargin = 100
        holder.itemView.layoutParams = params
    }else{
        val params = holder.itemView.layoutParams as RecyclerView.LayoutParams
        params.bottomMargin = 0
        holder.itemView.layoutParams = params
    }
  //other codes ...
}

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