Java – Android bitmap. Createbitmap() fills the heap

I need a big bitmap (6000) × 2000), so I created a:

Bitmap.Config conf = Bitmap.Config.ARGB_4444;
Bitmap bm = Bitmap.createBitmap(6000, 2000, conf);

Then at the end of the method, I reclaim BM and set it to null. However, every time I call my method, my heap will grow. Outofmemoryerror will be thrown every time

resolvent:

The problem is that before Android 3. X, it may take several GC cycles to correctly publish bitmap on Android. Even if you call recycle (), I believe the bitmap will be accounted for in your heap usage until at least the next GC. This is one of the very few cases where I suggest you enforce GC by calling system. GC (). You can also try to use several smaller bitmaps