App not fetching data from server [in Mobile]

I have my backend in php…
when i am testing my app on browser…it works properly…fetches and submit data like charm.
But when i am running the build apk on my device it is not fetching and showing any data…
Can anyone tell what may be the issue…??

console logs of this

just did chrome://inspect
came to know about the issue…one link was still connected to localhost.
Stupid mistake.