LogAdapter.java

package ru.ltst.u2020mvp.ui.logs;

import android.content.Context;
import android.support.annotation.DrawableRes;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import butterknife.ButterKnife;
import butterknife.Bind;
import ru.ltst.u2020mvp.R;
import ru.ltst.u2020mvp.data.LumberYard.Entry;
import ru.ltst.u2020mvp.ui.misc.BindableAdapter;
import rx.functions.Action1;


final class LogAdapter extends BindableAdapter<Entry> implements Action1<Entry> {
    private List<Entry> logs;

    public LogAdapter(Context context) {
        super(context);
        logs = Collections.emptyList();
    }

    public void setLogs(List<Entry> logs) {
        this.logs = new ArrayList<>(logs);
    }

    @Override
    public void call(Entry entry) {
        logs.add(entry);
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return logs.size();
    }

    @Override
    public Entry getItem(int i) {
        return logs.get(i);
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View newView(LayoutInflater inflater, int position, ViewGroup container) {
        View view = inflater.inflate(R.layout.debug_logs_list_item, container, false);
        LogItemViewHolder viewHolder = new LogItemViewHolder(view);
        view.setTag(viewHolder);
        return view;
    }

    @Override
    public void bindView(Entry item, int position, View view) {
        LogItemViewHolder viewHolder = (LogItemViewHolder) view.getTag();
        viewHolder.setEntry(item);
    }

    static final class LogItemViewHolder {
        private final View rootView;
        @Bind(R.id.debug_log_level)
        TextView levelView;
        @Bind(R.id.debug_log_tag)
        TextView tagView;
        @Bind(R.id.debug_log_message)
        TextView messageView;

        public LogItemViewHolder(View rootView) {
            this.rootView = rootView;
            ButterKnife.bind(this, rootView);
        }

        public void setEntry(Entry entry) {
            rootView.setBackgroundResource(backgroundForLevel(entry.level));
            levelView.setText(entry.displayLevel());
            tagView.setText(entry.tag);
            messageView.setText(entry.message);
        }
    }

    public static
    @DrawableRes
    int backgroundForLevel(int level) {
        switch (level) {
            case Log.VERBOSE:
            case Log.DEBUG:
                return R.color.debug_log_accent_debug;
            case Log.INFO:
                return R.color.debug_log_accent_info;
            case Log.WARN:
                return R.color.debug_log_accent_warn;
            case Log.ERROR:
            case Log.ASSERT:
                return R.color.debug_log_accent_error;
            default:
                return R.color.debug_log_accent_unknown;
        }
    }
}