Блог

Я реализовал RecyclerView с элементами GridView. Каждый элемент GridView имеет редактируемый текст для ввода количества, который имеет прослушиватель doOnTextChange. Когда я ввожу какое-то число, оно запускает случайное множество редактируемых текстов из разных элементов.

Адаптер

 class ItemSelectorRestaurantAdapter(
    itemList: ArrayList<SectionHeaderModel>,
    private val itemHeaderListener: ItemHeaderListener,
    private val onCustomActionListener: (InvoiceItem?) -> Unit
) : RecyclerView.Adapter<RecyclerView.ViewHolder>(), Filterable {

    private val viewSection = 0
    private val viewItem = 1

    private var itemList: ArrayList<SectionHeaderModel> = arrayListOf()
    private var itemListFiltered: ArrayList<SectionHeaderModel> = arrayListOf()

    init {
        this.itemList = itemList
        itemListFiltered = itemList
    }

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

    override fun getItemViewType(position: Int): Int {
        return if (itemListFiltered[position].header != null) viewSection else viewItem
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
        val viewHolder: RecyclerView.ViewHolder = if (viewType == viewItem) {
            val v: View = LayoutInflater
            .from(parent.context)
            .inflate(R.layout.view_item_selector_restaurant, parent, false)

            GridViewHolder(v)
        } else {
            val v: View = LayoutInflater
            .from(parent.context)
            .inflate(R.layout.view_section_header, parent, false)

            SectionViewHolder(v)
        }

         return viewHolder
    }

    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
        val header: String? = itemListFiltered[position].header
        val invoiceItem: InvoiceItem? = itemListFiltered[position].invoiceItem

        if (holder is GridViewHolder) {
            val quantity = invoiceItem?.quantity ?: 0.0

            val itemDetails = "Rs ${invoiceItem?.sellPrice}, ${invoiceItem?.itemName}"
            holder.tvItemDetails.text = itemDetails
            holder.etItemQuantity.setText(Utils.roundString(quantity, 2))
            holder.itemView.requestFocus()

            setQuantityAddModifyUI(holder, invoiceItem?.quantity ?: 0.0)

            holder.etItemQuantity.doOnTextChanged { text, _, _, _ ->
                if (holder.etItemQuantity.hasFocus()) {
                    val oldQty = if (text == "") "0" else text
                    invoiceItem?.quantity = oldQty.toDoubleX() ?: 0.0
                    onCustomActionListener(invoiceItem)
                }
            }
        } else {
            val view = holder as SectionViewHolder
            view.tvHeader.text = if ((header ?: "").isEmpty()) {
                itemHeaderListener.sendHeaderPosition("NO CATEGORY", position)
                "NO CATEGORY"
            } else {
                itemHeaderListener.sendHeaderPosition(header!!, position)
                header
            }
        }
    }

    inner class SectionViewHolder(v: View) : RecyclerView.ViewHolder(v) {
        val tvHeader: TextView = v.findViewById(R.id.tvHeader) as TextView
    }

    inner class GridViewHolder(v: View) : RecyclerView.ViewHolder(v) {
        val containerItemSelectorView: MaterialCardView = v.findViewById(R.id.containerItemSelectorView) as MaterialCardView
        val containerQuantityAdd: LinearLayout = v.findViewById(R.id.containerQuantityAdd) as LinearLayout
        val containerQuantityModify: LinearLayout = v.findViewById(R.id.containerQuantityModify) as LinearLayout

        val tvItemDetails: TextView = v.findViewById(R.id.tvItemDetails) as TextView

        val etItemQuantity: TextInputEditText = v.findViewById(R.id.etItemQuantity) as TextInputEditText

        val btnIncrease: ImageButton = v.findViewById(R.id.btnIncrease) as ImageButton
        val btnDecrease: ImageButton = v.findViewById(R.id.btnDecrease) as ImageButton
    }
}
 

Когда этот слушатель (holder.etItemQuantity.doOnTextChanged) запускает триггеры для нескольких элементов в представлении сетки вместо того, на котором пользователь сосредоточился.

Пожалуйста, помогите…