Is this Runnable safe from memory leak?

Question

I am a total beginner in Java and have created a simple Java Android snippet where in a Runnable after 1,5 seconds I change the TextView from Hello World<

Answer 1

h.postDelayed(new WeakRunnable(txtview),1500); I think it will be blocking UI Thread. here is a good sample for memory leak. https://github.com/badoo/android-weak-handler