如何將多個回收視圖設置為單個適配器

Question

如何將多個recycleview設置為單個適配器？

我正在創建一個應用程序，應用程序中有很多類別並創建多個適配器，model 和回收視圖使應用程序變得復雜。 很難為多個recycleview制作不同的適配器

我可以將多個recycleview 設置為一個適配器嗎？ 通過使用 if 或 else 或 switch 案例如何做到這一點？

或者有什么替代方法？？

Answer 1

我想這可能會對你有所幫助。

data class CategoryCheckList(var type: Int, val list: Any)

fun initData() {
    val category1 = Category1()
    val list1 = arrayOfList<CategoryCheckList>()
    list1.add(CategoryCheckList(CATETORY_1), category1)

    recyclerView.adapter = SingleListAdapter(context, list)

    val category2 = Category2()
    val list2 = arrayOfList<CategoryCheckList>()
    list2.add(CategoryCheckList(CATETORY_2), category2)

    recyelerView2.adapter = SingleListAdapter(context, list2)
}

class SingleListAdapter(
    private val context: Context,
    private val list: ArrayList<CategoryCheckList>
) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
        return when (viewType) {
            CATETORY_1 -> {
                val binding = ItemCategory1Binding.inflate(
                    LayoutInflater.from(parent.context), parent, false)
                Category1ViewHolder(binding)
            }
            else -> {
                val binding = ItemCategory2Binding.inflate(
                    LayoutInflater.from(parent.context), parent, false)
                Category2ViewHolder(binding)
            }
        }
    }

    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
        when (holder) {
            is Category1ViewHolder -> {
                list[position].let { holder.bind(it, position) }
            }
            is Category2ViewHolder -> {
                list[position].let { holder.bind(it, position) }
            }
            else -> {
                // default
                list[position].let { (holder as Category1ViewHolder).bind(it, position) }
            }
        }
    }

    override fun getItemCount(): Int {
        return list.size
    }

    override fun getItemViewType(position: Int): Int {
        return list[position].type
    }
}

class Category1ViewHolder(var binding: ItemCategory1Binding) :
    RecyclerView.ViewHolder(binding.root) {

    fun bind(categoryCheckList: CategoryCheckList, position: Int) {
        val nameHeader = categoryCheckList.list as Category1

        // do something
    }
}

class Category2ViewHolder(var binding: ItemCategory2Binding) :
    RecyclerView.ViewHolder(binding.root) {

    fun bind(categoryCheckList: CategoryCheckList, position: Int) {
        val checklist = categoryCheckList.list as Category2
        // do something
    }
}