如何向ListView添加文本大小？

<ListView
    android:id="@+id/listView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

public class MyAdapter extends BaseAdapter {
    private Context mContext;
    private List<String> mData;
    private float mTextSize; // 文本大小

    public MyAdapter(Context context, List<String> data, float textSize) {
        mContext = context;
        mData = data;
        mTextSize = textSize;
    }

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

    @Override
    public Object getItem(int position) {
        return mData.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TextView textView;
        if (convertView == null) {
            textView = new TextView(mContext);
            textView.setLayoutParams(new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        } else {
            textView = (TextView) convertView;
        }

        textView.setText(mData.get(position));
        textView.setTextSize(mTextSize);

        return textView;
    }
}

ListView listView = findViewById(R.id.listView);
List<String> data = new ArrayList<>();
data.add("Item 1");
data.add("Item 2");
data.add("Item 3");

float textSize = 18; // 设置文本大小为18sp
MyAdapter adapter = new MyAdapter(this, data, textSize);
listView.setAdapter(adapter);