如何让安卓应用在安装时有一个包含图片的文件夹？

// 获取图片文件的输入流
AssetManager assetManager = getAssets();
InputStream inputStream = assetManager.open("image.jpg");

// 指定图片文件保存的路径和文件名
String savePath = Environment.getExternalStorageDirectory().getPath() + "/MyApp/Images/";
String fileName = "image.jpg";

// 创建保存图片的文件夹
File directory = new File(savePath);
if (!directory.exists()) {
    directory.mkdirs();
}

// 创建保存图片的文件
File file = new File(directory, fileName);

// 将图片文件写入设备的存储空间
OutputStream outputStream = new FileOutputStream(file);
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) > 0) {
    outputStream.write(buffer, 0, length);
}
outputStream.flush();
outputStream.close();
inputStream.close();