从android上的服务器下载的图片返回null

Question

I want to download an image from server, I am able to download some images but not all, I dont understand why. I have search all over the net but did not find any solution. my code is

HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
drawable= Drawable.createFromStream(conn.getInputStream(), "");

I have also tried this code :

bitmap = BitmapFactory.decodeStream(new URL(url).openConnection().getInputStream());

nothing seem to work both bitmap and drawable are null.

Answer 1

Did you check the return code of the HttpURLConnection by using the getResponseCode method? Maybe the resource wasn't found or it contains a redirect.