如何在Android的Java库中添加资源(例如文本文件)

import android.content.Context;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ResourceHelper {

    public static String readTextFileFromRaw(Context context, int resourceId) {
        StringBuilder stringBuilder = new StringBuilder();
        try {
            InputStream inputStream = context.getResources().openRawResource(resourceId);
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
            String line;
            while ((line = bufferedReader.readLine()) != null) {
                stringBuilder.append(line);
                stringBuilder.append("\n");
            }
            bufferedReader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return stringBuilder.toString();
    }
}

public class MainActivity extends AppCompatActivity {

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

        // 假设example.txt的资源ID是R.raw.example
        String textContent = ResourceHelper.readTextFileFromRaw(this, R.raw.example);
        Log.d("文本内容", textContent);
    }
}

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));