[android-developers] Strange out of memory on bitmap but there is free heap space

Hi,

I have a list view that display about 25 images with size 60x60 pixels.
I dowload this images from internet and I store in an arraylist as
Bitmap. I need to save it in a arraylist because a listview will recycle
views and so I need, wenn the user scroll, to display the image
in the new view WITHOUT downloading again from internet

But after some time I got

java.lang.OutOfMemoryError: bitmap size exceeds VM budget

It seams that I got this exception about after loading 20 images ...

Reading in forum I have read about memory heap.

I try to check the memory heap usage with:

Debug.getNativeHeapAllocatedSize

and

Debug.getNativeHeapSize()

When the exception occours both are about 4M.

But android has more than 4M?

When the application start the values are a little less to 4M so it seams is not
a big memory usage or memory leak.

To be sure I want to call :
ActivityManager.getMemoryClass()

but this method is and instance method and I can't find the object to invoke!!!

But this method say, that al min should an application have 16M!

Any help? I have seen many topics in google ... but all speak about
recycle. But if
I recycle a bitmat ... then should I download again from internet?

Should I store the image on flash memory or sd card instead an
arraylist in memory?

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