글라이드 bitmap으로 저장

    class Gliding extends  AsyncTask<Void,Void,Void>{
        String url;
        Bitmap theBitmap;
        Gliding(String url){
            this.url=url;
        }
        @Override
        protected Void doInBackground(Void... params) {
//            Looper.prepare();
            try {
                theBitmap = Glide.
                        with(Friend_service.this).
                        load(url).
                        asBitmap().
                        into(-1,-1).
                        get();
            } catch (final ExecutionException e) {
                Log.d("error",e.toString());

            } catch (final InterruptedException e) {
                Log.d("error",e.toString());
            }
            return null;
        }
        @Override
        protected void onPostExecute(Void dummy) {
            if (null != theBitmap) {
                // The full bitmap should be available here
                FileOutputStream fos = null;
                try {
                    fos = openFileOutput(fileName, 0);
//                    imageView_iv.setImageBitmap(theBitmap);
                    theBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
                    fos.flush();
                    fos.close();
                    Log.d("result","sucess");
                   \h (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }

            };
        }
    }