如何在android列表中显示带有国家和城市名称的时区？

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.TimeZone;

public class TimeZoneAdapter extends BaseAdapter {
    private Context mContext;
    private String[] mTimeZones;

    public TimeZoneAdapter(Context context, String[] timeZones) {
        mContext = context;
        mTimeZones = timeZones;
    }

    @Override
    public int getCount() {
        return mTimeZones.length;
    }

    @Override
    public Object getItem(int position) {
        return mTimeZones[position];
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(mContext).inflate(R.layout.list_item_timezone, parent, false);
        }

        TextView textView = convertView.findViewById(R.id.text_view_timezone);
        String timeZoneId = mTimeZones[position];
        TimeZone timeZone = TimeZone.getTimeZone(timeZoneId);
        String displayName = timeZone.getDisplayName();
        textView.setText(displayName);

        return convertView;
    }
}