如何解决E/RecyclerView的问题：No adapter attached; 跳过此编码的布局？

Question

Here is my Password Manager activity

package com.example.passwordmanager;

Here is the library that I has imported

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.os.Bundle;
import android.widget.Adapter;

Define the variable

public class PasswordManager extends AppCompatActivity {
    Toolbar toolbar;
    RecyclerView recyclerView;
    Adapter adapter;

Start to set view @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_password_manager); toolbar = findViewById(R.id.toolbar);

        recyclerView = findViewById(R.id.listOfPass);
        LinearLayoutManager manager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(manager);
        recyclerView.setHasFixedSize(true);
    }
}

The error is occur:

2022-03-18 12:11:31.937 8858-8858/com.example.passwordmanager E/RecyclerView: No adapter attached; skipping layout

Answer 1

You should initialize adapter and its better to create custom adapter which extends RecyclerView.Adapter<RecyclerView.ViewHolder>