Hi, I have to provide an image-galary in my app. I decided to work with a GridView and provide the data thru an adapter. At the beginning I had many problems with out-of-memory exceptions and the app was very unstable. At the weekend I read alot on Stackoverflow and on android-developer. I followed the steps mentioned by Google to avoid this problem: http://developer.android.com/training/displaying-bitmaps/load-bitmap.html http://developer.android.com/training/displaying-bitmaps/process-bitmap.html http://developer.android.com/training/displaying-bitmaps/cache-bitmap.html
Conclusion: Now I load downsampled images over an AsyncTask into an async BitmapDrawable, that itself is provided thru the adapter. Once a bitmap is loaded, it is puttet into the memory-cache (1/8 of available memory) and is taken from there, if needed again. these steps made my galery much more stable and perfomat. but at a listcount of 15+ and very fast scrolling thru the list, the galery stills crashes with oom-ex. the imagesize of the displayed bitmaps (downsampled) is between 480x640 & 600x800. on this side google recommends to build a disk-lru-cache to save memory, when using gridview & adapter to display alot of images. http://developer.android.com/training/displaying-bitmaps/cache-bitmap.html Here are two samples of disk-lru-cashe (by Google): http://code.google.com/p/android/issues/attachmentText?id=29400&aid=294000000000&name=DiskLruCache.java&token=Rstp2OFViiWaUGS68yFfFgMQDEk%3A1335231242264 http://code.google.com/p/iosched/source/browse/android/src/com/google/android/apps/iosched/util/DiskLruCache.java?r=fcd13b09ef50f290dc0681ebec74fbdfcac969a5 But I don't have anough skill to translate this code into c#. What can I do? Is the disk-lru-cache the way to go? Do I have to translate it into c# or can one of these java-classes be easily bound into a mono-project? (I tried this yesterday, but I get compiler-errors). Are there other ways of optimation? questions over questions :-) hope someone has a hint for me! regards Lee -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/Disk-LRU-Cache-tp5712209.html Sent from the Mono for Android mailing list archive at Nabble.com. _______________________________________________ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid
