When may we need to use runOnUiThread in android application?

by

You have to use runOnUiThread() when you want to update your UI from a Non-UI Thread. For eg- If you want to update your UI from a background Thread. You can also use Handler for the same thing.

From the Docs –

Runs the specified action on the UI thread. If the current thread is
the UI thread, then the action is executed immediately. If the current
thread is not the UI thread, the action is posted to the event queue
of the UI thread.

Syntax –

       Activity_Name.this.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                // your stuff to update the UI

            }
        });

Update –

AsyncTask -

If you want to do some Network operation or anything that blocks
your UI in that case AsyncTask is best options. There are several
other ways for performing the same Background Operations as you can
use Service, IntentService also for doing Background Operations.
Using AsyncTask will help you doing your UI work and also won’t block
your UI until your background Operation is going on.

From the Docs –

AsyncTask enables proper and easy use of the UI thread. This class
allows to perform background operations and publish results on the UI
thread without having to manipulate threads and/or handlers.

More Related Contents:

  1. Inner class can access but not update values – AsyncTask
  2. Should I actually remove the ValueEventListener?
  3. Running code in main thread from another thread
  4. Is it legal to call the start method twice on the same Thread?
  5. Returning value from Thread
  6. How to check if current thread is not main thread
  7. java.lang.IllegalMonitorStateException: object not locked by thread before wait()?
  8. Pausing/stopping and starting/resuming Java TimerTask continuously?
  9. More efficient way for pausing loop wanted
  10. Android – Prevent white screen at startup
  11. TimerTask vs Thread.sleep vs Handler postDelayed – most accurate to call function every N milliseconds?
  12. How to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor?
  13. Where to stop/destroy threads in Android Service class?
  14. AsyncTask.executeOnExecutor() before API Level 11
  15. Android Timer schedule vs scheduleAtFixedRate
  16. How to use AsyncTask
  17. How to listen for Firebase setValue completion
  18. Run Handler messages in a background thread
  19. How to get the Context from anywhere? [duplicate]
  20. How to execute web request in its own thread?
  21. Printing Even and Odd using two Threads in Java
  22. How to skip initial data and trigger only new updates in Firestore Firebase?
  23. What exactly is a Context in Java? [duplicate]
  24. Threads in Java
  25. Threads and file writing
  26. Retrofit and RxJava: How to combine two requests and get access to both results?
  27. PDF Library to rendering the PDF files in Android [closed]
  28. Thread Confinement
  29. How is using OnClickListener interface different via XML and Java code? [duplicate]
  30. What exactly does Android’s @hide annotation do?

Leave a Comment