java - When an android phone connects to a hotspot that cannot access the Internet, it often automatically switches to other networks. Why not let it switch automatically?

Question

1, Problem: When the android phone is connected to a hotspot that cannot access the Internet, it often automatically switches
Details: In a recent project, it needs to interact with hardware. The hardware serves as a hotspot. After the mobile phone connects to the hardware hotspot, it communicates with the hardware through TCP. The problem now is that after manually connecting the mobile phone's wifi to a hardware hotspot, the mobile phone will often automatically switch to other hotspots that can access the Internet. Has anyone encountered this kind of problem? Please enlighten me. . .

Answer 1

Give me some ideas: I don’t know if it can work
I use a kongke socket. When setting up before, I also had to connect to a wifi to set up.
Now in the app, there is no need to switch wifi to set up. It directly displays the wifi currently connected to the phone. , let me enter the password, and it feels like the socket is connecting to the wifi by itself

Answer 2

I have also encountered such a situation. There is no problem on Xiaomi mobile phones, but such problems occur on Meizu mobile phones, and I have not found a good solution.