Android应用中怎么将svg图片转换为jpg格式

public class FileUtils { public static void savePhoto(final Context context, final String url , final SaveResultCallback saveResultCallback) { new Thread(new Runnable() {  @Override  public void run() {  File appDir = new File(Environment.getExternalStorageDirectory(), "out_photo");  if (!appDir.exists()) {   appDir.mkdir();  }  SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");//设置以当前时间格式为图片名称  String fileName = df.format(new Date()) + ".jpg";  File file = new File(appDir, fileName);  if (url.endsWith(".svg")){   //拿到图片在assets目录下的相对路径   String replaceUrl = url.replace("file:///android_asset/", "");   try {   SVG svg = new SVGBuilder().readFromAsset(context.getAssets(), replaceUrl).build();   //拿到svg图片的drawable   PictureDrawable drawable = svg.getDrawable();   //图片背景的画笔   Paint paint = new Paint();   paint.setColor(Color.WHITE);   //图片线条的画笔   Paint paint1 = new Paint();   paint1.setColor(Color.BLACK);   //创建bitmap对象   Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);   Canvas canvas = new Canvas(bitmap);   canvas.drawRect(0,0,bitmap.getWidth()+50,bitmap.getHeight()+50,paint);   drawable.setBounds(0,0,canvas.getWidth(),canvas.getHeight());   drawable.draw(canvas);   FileOutputStream fos = new FileOutputStream(file);   //转为jpg格式并写入到sd卡   bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);   fos.flush();   fos.close();   saveResultCallback.onSavedSuccess();   } catch (IOException e) {   e.printStackTrace();   saveResultCallback.onSavedFailed();   }  }else {  try {   //保存jpg格式的图片到相册中   FileOutputStream fos = new FileOutputStream(file);   InputStream fis = context.getAssets().open(url.replace("file:///android_asset/",""));   int len = 0;   byte[] bytes = new byte[1024];   while ((len = fis.read(bytes)) != -1){   fos.write(bytes,0,len);   }   fos.flush();   fis.close();   fos.close();   saveResultCallback.onSavedSuccess();  } catch (FileNotFoundException e) {   saveResultCallback.onSavedFailed();   e.printStackTrace();  } catch (IOException e) {   saveResultCallback.onSavedFailed();   e.printStackTrace();  }  }  //保存图片后发送广播通知更新数据库  Uri uri = Uri.fromFile(file);  context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, uri));  } }).start(); } public interface SaveResultCallback{ void onSavedSuccess(); void onSavedFailed(); }}