memory management - Android - Grow Heap (Frag Case) - Byte Allocation.. Not Loading any bitmaps

Question

This happens when the app loads from Splash screen to Main page. It happens only on the device not on simulator:

05-17 08:10:16.627: I/dalvikvm-heap(14021): Grow heap (frag case) to 20.580MB for     2424256-byte allocation
05-17 08:10:16.666: D/dalvikvm(14021): GC_FOR_ALLOC freed 1K, 3% free 21000K/21511K, paused 21ms
05-17 08:10:16.697: D/dalvikvm(14021): GC_CONCURRENT freed 116K, 3% free 20885K/21511K, paused 2ms+2ms
05-17 08:10:16.720: D/dalvikvm(14021): GC_FOR_ALLOC freed 44K, 4% free 20841K/21511K, paused 10ms
05-17 08:10:16.728: I/dalvikvm-heap(14021): Grow heap (frag case) to 24.533MB for 4310896-byte allocation

I used Ecplise MAT - the byte allocation resolved - Android.Graphics.Bitmap $preloaded images...

The device I am using is Google Nexus Prime, Android 4.0

Has anyone encountered the same? Can someone throw some expertise....

Answer 1

I have experienced the same issue and found a solution to it.

Are you loading your bitmaps from resource? if so try placing them in corresponding drawable folders instead of keeping them in "drawable" or "drawable-mdpi".

When you have your image resources in plain drawable folder, to the system it means drawable-mdpi. Therefore devices with high or extra high dpi (Galaxy Nexus I believe is Extra high) will expand that resource to match the dpi of the device.

If you only have 1 size for your resources, put them in drawable-nodpi and it will be used as is. However some of your layouts may be affected by this, so I kept certain images in the drawable folder (like button images etc.) and moved backgrounds and other bigger resources into drawable-nodpi.

Hope this helps ;)