Changing interface from another thread?

Question

Java

The interface is a button and a textView. When the button is pressed, a new thread is created in which a socket is created and receives and transmits data.
How do I pass this string as text to this textView? Throws an exception that I can only use the interface on the thread it was created on.

Answer 1

runOnUiThread in activity.
Still smoking Handler.
Back in 2019, it’s not customary in Android to create a thread like this. Use JobManager or Foreground Service with separate thread pool.
You can also take Rx, just in case.