How to get and post request with processing for android

Processing for Android
1

Hello guys.
I am stuck on working with get and post methods with an URL. I have been programming this topic in processing.JAVA as follows:

import http.requests.*;
JSONObject json; 
GetRequest leerTs = new GetRequest("https://blablabla.com/field/1.json?api_key=123456789&results"); //this URL is just an example

void setup()
{
  //orientation(LANDSCAPE);//this is for android mode
  size(displayWidth, displayHeight);
  background(200,100,10);
}
void draw()
{
  leerTs.send();
  String answer = leerTs.getContent();
  println(answer);
  delay(2000);
}

I failed when trying it in android mode, I set android permissions like: internet, access_network_sketch and access_wifi_state, but it also fails. I wonder if there is a way of programing like this but in android mode.

Thanks in advance