Android Studio Java在新行中显示文本文件内容

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

import android.content.res.Resources;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

import java.io.InputStream;
import java.util.Scanner;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView textView = findViewById(R.id.textView);

        // 读取文本文件内容
        Resources resources = getResources();
        InputStream inputStream = resources.openRawResource(R.raw.text_file);
        Scanner scanner = new Scanner(inputStream);
        StringBuilder stringBuilder = new StringBuilder();
        while (scanner.hasNextLine()) {
            stringBuilder.append(scanner.nextLine());
            stringBuilder.append("\n");
        }
        scanner.close();

        // 显示文本文件内容
        textView.setText(stringBuilder.toString());
    }
}