How do I discover memory usage of my application in Android?

Question

How can I find the memory used on my Android application, programmatically?

I hope there is a way to do it. Plus, how do I get the free memory of the phone too?

Answer 1

Yes, you can get memory info programmatically and decide whether to do memory intensive work.

Get VM Heap Size by calling:

Runtime.getRuntime().totalMemory();

Get Allocated VM Memory by calling:

Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();

Get VM Heap Size Limit by calling:

Runtime.getRuntime().maxMemory()

Get Native Allocated Memory by calling:

Debug.getNativeHeapAllocatedSize();

I made an app to figure out the OutOfMemoryError behavior and monitor memory usage.

https://play.google.com/store/apps/details?id=net.coocood.oomresearch

You can get the source code at https://github.com/coocood/oom-research