CreateFromStream in Android returning null for certain url

Question

public class TestButton extends Activity {   
    /** Called when the activity is first created. */   
    ImageButton imgBtn;   
    @Override
    public void onCreate(Bundl         


        

Answer 1

I've stumbled upon same problem today. And found an answer, luckily :) There is a bug in SDK, described more or less on that google groups thread.

Workaround that worked for me is:

     private static final int BUFFER_IO_SIZE = 8000;

     private Bitmap loadImageFromUrl(final String url) {
        try {
            // Addresses bug in SDK :
            // http://groups.google.com/group/android-developers/browse_thread/thread/4ed17d7e48899b26/
            BufferedInputStream bis = new BufferedInputStream(new URL(url).openStream(), BUFFER_IO_SIZE);
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            BufferedOutputStream bos = new BufferedOutputStream(baos, BUFFER_IO_SIZE);
            copy(bis, bos);
            bos.flush();
            return BitmapFactory.decodeByteArray(baos.toByteArray(), 0, baos.size());
        } catch (IOException e) {
            // handle it properly
        }
    }

    private void copy(final InputStream bis, final OutputStream baos) throws IOException {
        byte[] buf = new byte[256];
        int l;
        while ((l = bis.read(buf)) >= 0) baos.write(buf, 0, l);
    }

And make sure not to set buffers size to more than 8k, because OS will use default size instead of the one you set (logging that of course, but it took me a while to notice that ;) ).

Answer 2

One more solution is using FlushedInputStream http://code.google.com/p/android/issues/detail?id=6066