android-learn-app/app/src/main/java/top/iletter/lvnote/NoteAdapter.java

package top.iletter.lvnote;

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

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.List;

public class NoteAdapter extends RecyclerView.Adapter<NoteAdapter.ViewHolder> {

    private final List<String> notes;

    public NoteAdapter(List<String> notes) {
        this.notes = notes;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.item_note, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        String note = notes.get(position);
        String[] parts = note.split(" · ");
        holder.title.setText(parts[0]);
        holder.content.setText(parts.length > 1 ? parts[1] : "无内容");
        holder.time.setText("2024-02-09 15:30");
    }

    @Override
    public int getItemCount() {
        return notes.size();
    }

    static class ViewHolder extends RecyclerView.ViewHolder {
        TextView title, content, time;

        ViewHolder(View itemView) {
            super(itemView);
            title = itemView.findViewById(R.id.tv_note_title);
            content = itemView.findViewById(R.id.tv_note_content);
            time = itemView.findViewById(R.id.tv_note_time);
        }
    }
}