1-dars. Android ilovalari haqida ikkita asosiy tushuncha

ListView-da bo'lgani kabi, RecyclerView-da ob'ektlarni ko'rsatish uchun biz adapterimizni aniqlab olishimiz kerak. Shuning uchun yangi ProgrammingLanguageAdapter sinfini ilovamizga qo'shamiz. Qo'shib bo'lgandan keyin, uni quyidagicha o'zgartiramiz:
package com.example.android.recyclerview;

import android.content.Context;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.recyclerview.widget.RecyclerView;

import java.util.List;

public class ProgrammingLanguageAdapter extends RecyclerView.Adapter

{

private LayoutInflater inflater;

private List
programmingLanguages;

ProgrammingLanguageAdapter(Context context, List

programmingLanguages) {
this.programmingLanguages = programmingLanguages;
this.inflater = LayoutInflater.from(context);
}

@Override

public ProgrammingLanguageAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

View view = inflater.inflate(R.layout.list_item, parent, false);

return new ViewHolder(view);
}

@Override

public void onBindViewHolder(ProgrammingLanguageAdapter.ViewHolder holder, int position) {
ProgrammingLanguage programmingLanguage = programmingLanguages.get(position);
holder.imageView.setImageResource(programmingLanguage.getImage());
holder.nameView.setText(programmingLanguage.getName());
}

@Override

public int getItemCount() {
return programmingLanguages.size();
}

public static class ViewHolder extends RecyclerView.ViewHolder {

final ImageView imageView;
final TextView nameView;

ViewHolder(View view) {

super(view);
imageView = view.findViewById(R.id.image);
nameView = view.findViewById(R.id.name);
}
}
}