How android mavsdk-server connect with a gazebo docker container?

[zealrussell]

Dear all, I run the jonasvautherin/px4-gazebo-headless docker image in my windows laptop, and(1)when I run mavsdk-server and mavsdk-java in the laptop, the mavskd-server automatically connect with gazebo-docker, so it works successfully, but (2) when I run the mavsdk-server and mavsdk-java in my android phone(they use same wifi), the mavsdk-server could not connect with the gazebo-docker. I use the following code to create an android application:

MavsdkServer mavsdkServer = new MavsdkServer();
int port = mavsdkServer.run(''udp://:14540'');
drone = new System(''127.0.0.1'', port); 

After carefully reading getting-started-with-mavsdk-java/ ,I think the question is udp://:14540, so I tried udp://192.168.1.10:14540 (my laptop ip address) but still didn't work. I even use the commander docker run --rm -it jonasvautherin/px4-gazebo-headless:1.12.3 192.168.1.10 but still. I really want to know how could I connect them with eachother. My english is bad so I draw the picture question.png. Thanks a lot!

[JonasVautherin]

Two things:

1. Why do you use double single-quotes '' and not double quotes " in the code above? Does that even compile? :thinking:
2. With your code above, your Android app is listening on UDP port 14540. You should be able to just point px4-gazebo-headless to it. So instead of using the IP of the laptop, use the IP of the Android device:

docker run --rm -it jonasvautherin/px4-gazebo-headless:1.12.3 <ip_of_android_device>

[zealrussell]

For the first, it is a typo, I have used double quotes in my code. Sorry for my mistake. For the second, I use docker run --rm -it jonasvautherin/px4-gazebo-headless:1.12.3 <ip_of_android_device> and it really works! Thank you for your help. Best wishes!