Is it a good practice to use Runtime.getRuntime().gc() method in onDestroy() of an Activity?

Question

onDestroy() method of an Activity does not reduces my memory usage. I am allocating some memory onCreate() of an Activity, but onDestroy() of that same activity does not de-allocates the memory as seen in the Android Monitor.

So, I was using the Runtime.getRuntime().gc() method to clear the memory manually. I was calling it in onDestroy() method.

Is it a good practice ?

Answer 1

I was using the Runtime.getRuntime().gc() method to clear the memory manually

That does not "clear the memory".

When I am opening a new activity, the memory allocation takes place. If I go back and forth, the memory keeps stacking up

Then you have some form of memory leak. Use the development tools to determine where the problem is coming from.