What is the difference between View.postDelayed() and Handler.postDelayed() on the main thread?

Question

According to the documentation of Handler.postDelayed(Runnable r, long delayMillis):

Causes the Runnable r to be added to the message que

Answer 1

From the source, View.postDelayed() is simply using Handler.postDelayed() on an internal handler so there is no difference.

foo() may leak the Activity, you should use View.removeCallbacks() to minimize this chance.