我正在尝试做expandale recyclerview，我使用thinkbot/expandable-recycler-view，但我的适配器有问题。也许有人有类似的问题，可以帮助我解决这个问题
1）我的父类的代码
/****** parent ******/
class Item(title: String?, items: MutableList<ItemDetail>?) :
ExpandableGroup<ItemDetail>(title, items)
2）子类（这里我使用了parcelize。但现在我使用：Parcelable）
// @Parcelize
// data class ItemDetail(
// var i_size: String,
// var i_qty: Int
//): Parcelable
class ItemDetail (val i_size: String, val i_qty: Int): Parcelable{
constructor(parcel: Parcel):this(
parcel.readString(),
parcel.readInt()){
}
override fun writeToParcel(parcel: Parcel, flags: Int) {
parcel.writeString(i_size)
parcel.writeInt(i_qty)
}
override fun describeContents(): Int {
return 0
}
companion object CREATOR : Parcelable.Creator<ItemDetail> {
override fun createFromParcel(parcel: Parcel): ItemDetail {
return ItemDetail(parcel)
}
override fun newArray(size: Int): Array<ItemDetail?> {
return arrayOfNulls(size)
}
}
}
3) 片段 - 适配器
/**** fragment ****/
val groups: MutableList<Item> = ArrayList<Item>()
val childs : MutableList<ItemDetail> = ArrayList<ItemDetail>()
childs.add(ItemDetail("200x200",4))
childs.add(ItemDetail("300x300",6))
childs.add(ItemDetail("400x300",2))
groups.add(Item("Item ISFAKHAN",childs))
val childs2 : MutableList<ItemDetail> = ArrayList<ItemDetail>()
childs2.add(ItemDetail("200x200",42))
childs2.add(ItemDetail("300x300",62))
childs2.add(ItemDetail("400x300",22))
groups.add(Item("Item DASTAN",childs2))
/*** error ***/
cAdapter = CartAdapter(groups)
/*** Type mismatch.Required: MutableList<out ExpandableGroup<Parcelable>>? Found: MutableList<Item> ***/
/****** adapter *****/
class CartAdapter(groups: MutableList<out ExpandableGroup<Parcelable>>?) :
ExpandableRecyclerViewAdapter<ItemVH, ItemDetailVH>(groups) {
}