如何执行排球请求并等待响应？ 我正在尝试将凌空响应值发送给onCreate方法。
我发现这个link可以帮助我将截击响应值返回给onCreate方法。
但是它返回了截击的先前响应，它与之前的运行有关。
例如，如果最后一行ID为215，则返回214.我该如何解决。 预先感谢。

我的uploadP.java类

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_upload);


    btn_upload.setOnClicklistener(new View.OnClicklistener() {

        @Override
        public void onClick(View v) {
            final String user_id = u5;
            final String pha_code = id;
            uploadImage(user_id,pha_code);

    SharedPreferences m =  PreferenceManager.getDefaultSharedPreferences(UploadP.this);
        final String u55 =m.getString("Response","");

  Intent intent=new Intent(UploadP.this,InsertAddress.class);
    intent.putExtra("upload_id",upload_id);
    startactivity(intent);
    });
  }

齐射

private void uploadImage(final String user_id,final String pha_code){

    final ProgressDialog loading = ProgressDialog.show(this,"Uploading...","Please wait...",false,false);
    StringRequest stringRequest = new StringRequest(Request.Method.POST,UPLOAD_URL,new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    Log.e(TAG,"Response: " + response.toString());

                    try {
                        JSONObject jObj = new JSONObject(response);
                        success = jObj.getInt(TAG_SUCCESS);
                        upload_id=jObj.getInt(TAG_UPLOAD_ID);
                        if (success == 1) {
                            Log.e("v Add",jObj.toString());
                            sharedResponse(String.valueOf(upload_id));

                            Toast.makeText(com.haman.PUpload.UploadP.this,jObj.getString(TAG_MESSAGE),Toast.LENGTH_LONG).show();


                        } else {
                            Toast.makeText(com.haman.PUpload.UploadP.this,Toast.LENGTH_LONG).show();
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }

                    loading.dismiss();
                }
            },new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    loading.dismiss();

                    Toast.makeText(com.haman.PUpload.UploadP.this,error.getMessage().toString(),Toast.LENGTH_LONG).show();
                    Log.e(TAG,error.getMessage().toString());
                }
            }) {
        @Override
        protected Map<String,String> getParams() {
            //membuat parameters
            Map<String,String> params = new HashMap<String,String>();

            //menambah parameter yang di kirim ke web servis
            params.put(KEY_IMAGE,getStringImage(decoded));
            params.put(KEY_EMAIL,user_id.trim());
            params.put(KEY_PHA_CODE,pha_code.trim());


            //kembali ke parameters
            Log.e(TAG,"" + params);
            return params;
        }
    };
   // queue.add(stringRequest);
    AppController.getInstance().addToRequestQueue(stringRequest,tag_json_obj);
}

upload_id是一个json对象，它是mysql数据库中最后插入的行的ID。
日志消息为：
响应：{“成功”：1，“ upload_id”：201，“消息”：“成功上传”}