Question

In Android, when I create a runnable inside a service and run it, while I realize it runs in its own thread, is this thread somehow part of the UI thread? In other words, if the runnable carried out a long process, would it affect the UI?

EDIT:

private class SomeRunnable implements Runnable
{
  @Override
  public void run()
  {
    try
    {

    }
  }
}

SomeRunnable runnable = new SomeRunnable();
(new Handler()).postDelayed(runnable, 1000);

Answer 1

Docs:

A services runs in the same process as the application in which it is
declared and in the main thread of that application,

Different thread:

Thread t = new Thread(new MyRunnable());
t.start();

UI/Service Thread:

Handler h = new Handler();
h.post(new MyRunnable());