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ScrollAdapter.kt
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package com.dennis.doublepull.adapter | |
import android.view.LayoutInflater | |
import android.view.View | |
import android.view.ViewGroup | |
import androidx.recyclerview.widget.RecyclerView | |
import com.dennis.doublepull.R | |
class ScrollAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() { | |
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder { | |
return if (viewType == TYPE_HEADER) { | |
HeaderViewHolder(LayoutInflater.from(parent.context) | |
.inflate(R.layout.header, parent, false)) | |
} else ScrollViewHolder(LayoutInflater.from(parent.context) | |
.inflate(R.layout.item, parent, false)) | |
} | |
override fun getItemViewType(position: Int): Int { | |
return if (position == 0) { | |
TYPE_HEADER | |
} else TYPE_NORMAL | |
} | |
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) { | |
// do nothing | |
} | |
override fun getItemCount(): Int { | |
return DEFAULT_SIZE | |
} | |
private inner class ScrollViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) | |
private inner class HeaderViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) | |
companion object { | |
private const val TYPE_NORMAL = 1000 | |
private const val TYPE_HEADER = 2000 | |
private const val DEFAULT_SIZE = 31 | |
} | |
} |
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