Android - Is there any callback for when my activity is about to throw an OutOfMemory exception?

Question

I have a ViewFlipper in which, in each of its subviews, I put a bitmap on it. The thing is that I am worried that my application (in special, that Activity) will run out of memory and throw an (OutOfMemory) exception.

I thought in capturing the "OutOfMemory" exception, but that would be too late already...

I want to implement some callback method for when my activity is "about to run out of memory" (like, it will run out of memory if I allocate 2 or 3 more bitmaps).

Is there any method we can implement so I can free some of those loaded bitmaps inside it? I don't want to free the bitmaps if my application still has plenty of memory to have the bitmaps in memory.

Thanks in advance!

onLowMemory? http://developer.android.com/reference/android/app/Application.html#onLowMemory%28%29 — William Melani, Jul 17 '12 at 03:59
Thanks for replying Willian. I knew that method, but it doesn't seem to be what I want. I want a method that will be called when my application is running out of memory (not the entire Android). — Bitcoin Cash - ADA enthusiast, Jul 17 '12 at 04:07

score 3 · Accepted Answer · edited May 23 '17 at 11:56

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You can verify free memory of the system at that point

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

In android 4.1 New ComponentCallbacks2 constants such as TRIM_MEMORY_RUNNING_LOW and TRIM_MEMORY_RUNNING_CRITICAL provide foreground processes more information about memory state before the system calls onLowMemory().

edited May 23 '17 at 11:56

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answered Jul 17 '12 at 03:59

Vishwanath.M

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This is great information! Thanks vishwa. Answer accepted now. – Bitcoin Cash - ADA enthusiast Jul 18 '12 at 23:32

Android - Is there any callback for when my activity is about to throw an OutOfMemory exception?

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