Hello, I am developing an app that contains many images. I have noticed that the memory usage of my app is quite a bit higher in Android 2.3 than in Android 2.2 - ultimately resulting in OutOfMemory errors while loading bitmaps. In researching this, I logged the result of Debug.getNativeHeapAllocatedSize() in the onResume of the first activity. In Android 2.2, this outputs 5MB. In Android 2.3, this outputs 17MB.
I created a sample application to try to further narrow this down. The sample app has 2 activities: the first has a small image and a button to launch the second activity; the second activity has several large images in a ScrollView. You can download the sample here: http://dl.dropbox.com/u/21709517/MemoryUsageExample.zip When running this sample, Debug.getNativeHeapAllocatedSize() reports 3MB allocated after starting the first activity in both 2.2 and 2.3. After launching the second activity, Android 2.2 still reports 3MB allocated while Android 2.3 reports 17MB allocated. Running "adb shell dumpsys meminfo test.example" shows the same types of results. Why is there such a dramatic difference between Android 2.2 and 2.3? And more importantly, what should I be doing differently to prevent using so much memory on Android 2.3? Jeff -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
