[Android] 파일 넣고 읽기

res - raw 밑에 파일 생성

public class MainActivity extends AppCompatActivity {

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


        TextView helloTxt = findViewById(R.id.textView1);
        helloTxt.setText(readTxt());
    }

    private String readTxt() {
        String data = null;
        InputStream inputStream = getResources().openRawResource(R.raw.test);
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

        int i;
        try {
            i = inputStream.read();
            while (i != -1) {
                byteArrayOutputStream.write(i);
                i = inputStream.read();
            }

            data = new String(byteArrayOutputStream.toByteArray(),"MS949");
            inputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return data;
    }
}