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RequestBody fileBody = RequestBody.create(MediaType.parse("application/octet-stream"),
        new File("/mnt/sdcard/Pictures/testhead.png"));
RequestBody requestBody = new MultipartBody.Builder()
        .setType(MultipartBody.FORM)
        .addFormDataPart("file", "testhead.png", fileBody)
        .addFormDataPart("address", "test address")
        .build();
HttpUtils.getHttpService().updateMyInfo(requestBody)
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(new ProgressSubscriber<Object>(mContext, mView) {
            @Override
            public void onSuccess(Object o) {
                mView.onAddCheckSuccess();
            }
        });