If you use them for fit-in screen display only, just scale them to the screen-size. You don't need any bigger.
1. Figure out the actual width and height of the image (inJustDecodeBounds = true) 2. When actually loading the pic, downsample (inSampleSize > 1) so that the resulting image fits the screen as good as possible (for best result, make the loaded image a bit bigger than the screen instead of a bit smaller). Also, the values of inSampleSize work best across most phones when its value is a power of 2 (2, 4, 8, etc) 3. Then scale the image (down) a bit further to exactly fit the screen. E.g. say your screen is 800x400. Your image is 2048x1536. Then downsample the image (inSampleSize = 2) --> Loaded image is 1024x768. Then scale the downsampled image by 52.08333% --> a bitmap of 533x400 pixels. Cache this image. Still, be careful not to cache too many images. On Feb 8, 9:48 am, Samuh <[email protected]> wrote: > I have a bunch of image URLs. I have to download these images and > display them in my application one-by-one. I am saving the images in a > Collection using SoftReferences and also on Sdcard to avoid refetches > and improve user experience. > > The problem is I dont know anything about the size of the bitmaps. And > as it turns out, I am getting OutOfMemoryExceptions sporadically, when > I am using BitmapFactory.decodeStream(InputStream) method. So, I chose > to downsample the images using BitmapFactory Options(sample size=2). > This gave a better output: no OOMs, but this affects the quality of > smaller images. > > How should I handle such cases? Is there a way to selectively down > sample only high resolution images? > > Thanks -- 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
