How to control esp2866 using other wifi connection

[katalepsy]

/*Define static IP*/
IPAddress local_IP (192, 168, x, x);
IPAddress gateway (192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);

void setup()
{ 
  if (!WiFi.config(local_IP, gateway, subnet)) {
  Serial.println("STA Failed to configure");
}
  Serial.begin(115200);
  connectWiFi();
  server.begin();
}

I tried to use other Wifi connection to control my esp but it didn't work I also have tried to create static IP address as you can see the code above but it didn't work. I don't know what exactly do you call this but I just want to control my esp using my mobile app that I created even i'm connected in other WiFi conenction or mobile data how could I possibly achieve that? TIA

[Idahowalker]

That cannot possibly be all your code.

If it is then you will need to write some code in your loop(0 function that does the things you want done.

[katalepsy]

well yeah that's all I got for the meantime I just thought static IP would solve my problem I'm still gathering infos