使用OkHttp上傳多張圖片

OkHttpClient okHttpClient = new OkHttpClient();MultipartBody.Builder builder = new MultipartBody.BuiOkHttpClient okHttpClient = new OkHttpClient();MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);//mHashMap是圖片path的集合if(mHashMap !=null&&selectList!=null){    for (int i = 0; i < selectList.size(); i++) {        File f = new File(mHashMap.get(i));        if (f == null) break;        try {            BitmapFactory.Options options = new BitmapFactory.Options();            options.inPreferredConfig = Bitmap.Config.RGB_565;            Bitmap bm = BitmapFactory.decodeFile(f.getAbsolutePath(), options);            bm.compress(Bitmap.CompressFormat.JPEG, 90, new FileOutputStream(f));            bm.recycle();        } catch (FileNotFoundException e) {            e.printStackTrace();        }        builder.addFormDataPart("img[]", f.getName(), RequestBody.create(MEDIA_TYPE_PNG, f));    }}builder.addFormDataPart("type",committype);builder.addFormDataPart("id",spotid);builder.addFormDataPart("cont",txt.getText().toString());builder.addFormDataPart("userid","2");MultipartBody requesBody = builder.build();RequestBody body = new FormBody.Builder()//這裏跟後臺協商的接口有關        .add("type", "sd")        .add("id", spotid)        .add("cont", txt.getText().toString())        .add("userid", "2")        .build();Request request = new Request.Builder().url(Url.PostCommitUrl).post(requesBody).build();Call call = okHttpClient.newCall(request);call.enqueue(new Callback() {    }