在 ConcatAdapter Android 中设置不同适配器之间的边距/填充

如何解决在 ConcatAdapter Android 中设置不同适配器之间的边距/填充

是否可以在 ConcatAdapter 中的不同适配器之间设置空格（边距/填充）？我只有一个简单的代码示例，如下所示，但根据设计，我必须在不同的适配器（不是一个适配器中的支架项目）之间添加边距。实现这一目标的最佳方法是什么？

Measure 1 = 
VAR CurrentID = SELECTEDVALUE ( rjap[ID] )
VAR CurrentName = SELECTEDVALUE ( rjap[M Name] )
VAR RowsWithSameID =
    FILTER ( 
        ALLSELECTED ( rjap ),rjap[ID] = CurrentID
    )
VAR Result =
    FILTER (
        RowsWithSameID,LEFT ( rjap[M Name],3 ) = "Ann"
            || LEFT ( rjap[M Name],1 ) = "B"
    )
RETURN
    IF ( COUNTROWS ( Result ) >= 2,"A,B",CurrentName )

解决方法

我设法做到了这样的事情：

class EmptySpaceAdapter(private val context: Context,private val height: Int) : RecyclerView.Adapter<BaseViewHolder<*>>() {

override fun onCreateViewHolder(parent: ViewGroup,viewType: Int): BaseViewHolder<*> {
    val view = View(context)
    view.layoutParams = ViewGroup.LayoutParams(RecyclerView.LayoutParams.MATCH_PARENT,height)
    return EmptySpaceViewHolder(view)
}

override fun getItemCount() = 1

class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView)

override fun onBindViewHolder(holder: BaseViewHolder<*>,position: Int) {
    when (holder) {
        is EmptySpaceViewHolder -> holder.bind(true,position)
        else -> throw IllegalArgumentException("No view holder to show this data,did you forgot to add it to the onBindViewHolder?")
    }
}

inner class EmptySpaceViewHolder(itemView: View) : BaseViewHolder<Boolean>(itemView) {
    override fun bind(item: Boolean,position: Int) {
        Timber.d("onBind empty space")
    }
  }
}

ViewHolder：

abstract class BaseViewHolder<T>(itemView: View) : RecyclerView.ViewHolder(itemView) {
    abstract fun bind(item: T,position: Int)
}