如何在android 11中持久化文件？

// 获取应用的私有目录
File directory = getExternalFilesDir(null);

// 创建文件
File file = new File(directory, "example.txt");

try (FileOutputStream fos = new FileOutputStream(file)) {
    fos.write("Hello, World!".getBytes());
} catch (IOException e) {
    e.printStackTrace();
}

// 创建ContentValues对象
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.DISPLAY_NAME, "example.jpg");
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
values.put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_PICTURES);

// 插入到MediaStore
Uri uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

try (OutputStream os = getContentResolver().openOutputStream(uri)) {
    // 写入文件数据
    byte[] data = "Hello, World!".getBytes();
    os.write(data);
} catch (IOException e) {
    e.printStackTrace();
}

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

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