If whatever you are doing is “heavy” you should be doing it in a Thread. If you do not explicitly start it in its own thread, then it will run on the main (UI) thread which may be noticeable as jittery or slow to respond interface by your users. Interestingly when you are using a … Read more
In my experience calling this worked great! handler.removeCallbacksAndMessages(null); In the docs for removeCallbacksAndMessages it says… Remove any pending posts of callbacks and sent messages whose obj is token. If token is null, all callbacks and messages will be removed.
I do this to post a delayed runnable: myHandler.postDelayed(myRunnable, SPLASH_DISPLAY_LENGTH); And this to remove it: myHandler.removeCallbacks(myRunnable);
Only the parameterless constructor is deprecated, it is now preferred that you specify the Looper in the constructor via the Looper.getMainLooper() method. Use it for Java new Handler(Looper.getMainLooper()).postDelayed(new Runnable() { @Override public void run() { // Your Code } }, 3000); Use it for Kotlin Handler(Looper.getMainLooper()).postDelayed({ // Your Code }, 3000)
If IncomingHandler class is not static, it will have a reference to your Service object. Handler objects for the same thread all share a common Looper object, which they post messages to and read from. As messages contain target Handler, as long as there are messages with target handler in the message queue, the handler … Read more
NOTE: This answer has gotten so much attention, that I need to update it. Since the original answer was posted, the comment from @dzeikei has gotten almost as much attention as the original answer. So here are 2 possible solutions: 1. If your background thread has a reference to a Context object: Make sure that … Read more
If we look at the source code, we will see AsyncTask and Handler is purely written in Java. (There are some exceptions, though. But that is not an important point) So there is no magic in AsyncTask or Handler. These classes make our life easier as a developer. For example: If Program A calls method … Read more