Why is Android not sending http request to esp8266?

Question

Android

I have an application on the phone in which I click on a button and an http request is sent to esp8266 and it accepts it, everything is fine. But if I put this application on another phone, then all requests are not sent. And I see that this phone is connected to esp8266, it allocates a poppy address to it, in this regard it's normal, but it doesn't send a request. What could be the problem? Thanks

Answer 1

streletzcoder.ru/rabotaem-s-obychnym-http-v-androi...

Answer 2

The problem may be that on android 9+ (and sometimes 8+) it is forbidden to use http by default. It is treated by setting the cleartextTrafficPermitted="true" parameter in the manifest - https://stackoverflow.com/questions/45940861/andro...