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RecyclerView bilan to'g'ri ishlashi uchun Adapter sinfida qaysi funksiyalarni qayta yozish kerak?

sobes.tech AI

AIdan javob

RecyclerView bilan to'g'ri ishlashi uchun adapter quyidagi metodlarni qayta yozishi kerak:

  1. onCreateViewHolder(ViewGroup parent, int viewType) — yangi ViewHolder yaratadi va ro'yxat elementining tartibini boshlaydi.
  2. onBindViewHolder(ViewHolder holder, int position) — ma'lumotlarni ro'yxat elementiga bog'laydi va ViewHolder mazmunini yangilaydi.
  3. getItemCount() — adapterdagi elementlar sonini qaytaradi.

Kotlin misoli:

class MyAdapter(private val items: List<String>) : RecyclerView.Adapter<MyAdapter.MyViewHolder>() {

    class MyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
        val textView: TextView = itemView.findViewById(R.id.textView)
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_layout, parent, false)
        return MyViewHolder(view)
    }

    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
        holder.textView.text = items[position]
    }

    override fun getItemCount(): Int = items.size
}