如何在Android 10的内部存储中创建自定义目录(文件夹)并存储我的数据？

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
        != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this,
            new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
            MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
}

File directory = new File(Environment.getExternalStorageDirectory(), "MyDirectory");
if (!directory.exists()) {
    directory.mkdirs();
}

File file = new File(directory, "myfile.txt");
try {
    FileOutputStream fos = new FileOutputStream(file);
    fos.write(data.getBytes());
    fos.close();
} catch (IOException e) {
    e.printStackTrace();
}