public class ImageDownloaderTask extends AsyncTask<String, Void, Bitmap>
{
public String url;
public String targetUrl;
private WeakReference<ImageView> imageViewReference;

public ImageDownloaderTask(String url, ImageView imageView)
{
this.targetUrl = url;
this.imageViewReference = new WeakReference<ImageView>(imageView);
}

@Override
protected Bitmap doInBackground(String... params)
{
return downloadBitmap(params[0]);
}

@Override
protected void onPostExecute(Bitmap bitmap)
{
if(isCancelled())
{
bitmap = null;
}

if(imageViewReference != null)
{
ImageView imageView = imageViewReference.get();
ImageDownloaderTask bitmapDownloaderTask = getBitmapDownloaderTask(imageView);
if(this == bitmapDownloaderTask)
{
ImageDownloader.mImageCache.put(targetUrl, bitmap);
imageView.setImageBitmap(bitmap);
}
}
}
private ImageDownloaderTask getBitmapDownloaderTask(ImageView imageView)
{
if(imageView != null)
{
Drawable drawable = imageView.getDrawable();
if(drawable instanceof DownloadedDrawable)
{
DownloadedDrawable downloadedDrawable = (DownloadedDrawable) drawable;
return downloadedDrawable.getBitmapDownloaderTask();
}
}
return null;
}

static Bitmap downloadBitmap(String url)
{
final HttpClient client = new DefaultHttpClient();
final HttpGet getRequest = new HttpGet(url);

try
{
HttpResponse response = client.execute(getRequest);
final int statusCode = response.getStatusLine().getStatusCode();
if(statusCode != HttpStatus.SC_OK)
{
Log.w("ImageDownloader", "Error " + statusCode + " while retrieving bitmap from " + url);
return null;
}

final HttpEntity entity = response.getEntity();
if(entity != null)
{
InputStream inputStream = null;
//BitmapFactory.Options options = new BitmapFactory.Options();
//options.inSampleSize = 2;
try
{
inputStream = entity.getContent();
final Bitmap bitmap = BitmapFactory.decodeStream(new FlushedInputStream(inputStream));
//final Bitmap bitmap = BitmapFactory.decodeStream(new FlushedInputStream(inputStream), null, options);
return bitmap;
}
finally
{
if(inputStream != null)
{
inputStream.close();
}
entity.consumeContent();
}
}
}
catch(Exception e)
{
getRequest.abort();
}
return null;
}

static class FlushedInputStream extends FilterInputStream
{
public FlushedInputStream(InputStream inputStream)
{
super(inputStream);
}

@Override
public long skip(long n) throws IOException
{
long totalBytesSkipped = 0L;
while(totalBytesSkipped < n)
{
long bytesSkipped = in.skip(n - totalBytesSkipped);
if(bytesSkipped == 0L)
{
int bytes = read();
if(bytes < 0)
{
break; // we reached EOF
}
else
{
bytesSkipped = 1; // we read one byte
}
}
totalBytesSkipped += bytesSkipped;
}
return totalBytesSkipped;
}
}
}

DB에서 stringd으로 저장된 url을 string으로 받아서 이미지를 받아옵니다.
그런데 task쪽에서 에러가 나옵니다.

Log.w("ImageDownloader", "Error " + statusCode + " while retrieving bitmap from " + url);

로그가 찍히는데 statusCode에 404가 찍히네요.

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