Download image from server

Nemat · by **Nemat** » Wed Oct 01, 2008 11:44 am

Hi,

I have to download an image from server.But I got an error "D/skia ( 197): xxxxxxxxxxx jpeg error 53 Not a JPEG file: starts with 0x%02x 0x%02x"

I have to perform two continues Http connection.First is used to get server response and second to get image from the server.First task is performed correctly but while downloading image I got the given eror.So the problem in getting image from server.

My code is:

Code: Select all: public ImageView getView(String myImageURL) { Log.i("TAG","downloadFile000000000000000000"+myImageURL); ImageView i = new ImageView(this); try { /* Open a new URL and get the InputStream to load data from it. */ URL aURL = new URL(myImageURL); URLConnection conn = aURL.openConnection(); Log.i("TAG","downloadFile1111111111111111111"+myImageURL); conn.connect(); InputStream is = conn.getInputStream(); Log.i("TAG","downloadFile2222222222222222222222"+is.read()); /* Buffered is always good for a performance plus. */ BufferedInputStream bis = new BufferedInputStream(is); Log.i("TAG","downloadFile33333333333333333333="+bis.read()); /* Decode url-data to a bitmap. */ // Bitmap bm = BitmapFactory.decodeStream(bis); Bitmap bm = BitmapFactory.decodeStream(is); // Log.i("TAG","downloadFile4444444444444444444"+bm.getHeight()); // bis.close(); is.close(); /* Apply the Bitmap to the ImageView that will be returned. */ i.setImageBitmap(bm); Log.i("TAG","downloadFile555555555555555555555"); } catch (IOException e) { Log.i("TAG","downloadFile666666666666666666666666"); Log.e("DEBUGTAG", "Remtoe Image Exception", e); } /* Image should be scaled as width/height are set. */ // i.setScaleType(ImageView.ScaleType.FIT_CENTER); /* Set the Width/Height of the ImageView. */ return i; }

This code works fine when I performed this task alone in another project.

ninor · by **ninor** » Wed Oct 01, 2008 12:12 pm

Nemat wrote:This code works fine when I performed this task alone in another project.

Have you added the necessary permissions to the AndroidManifest.xml in this new project?

Nemat · by **Nemat** » Thu Oct 02, 2008 4:11 pm

I have added all the required requests.I think the image is downloaded correctly but the problem is in converting the image into bitmap or displaying the bitmap.....
I dont know the actual reason.I think so becoz I got JPEG error.

ninor · by **ninor** » Thu Oct 02, 2008 9:02 pm

Here's an example of downloading and displaying images from flickr.

http://code.google.com/p/apps-for-android/source/browse/trunk/Photostream/src/com/google/android/photostream/?r=73

(edited link)

Nemat · by **Nemat** » Fri Oct 03, 2008 3:13 pm

Actually I have to download image from a server.
This example doesnt have any code for downloading image from server.
I've applied another way .I got image 2-3 times correctly after that it again starts giving error.
My new code is:

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

 
public Bitmap getFromServer(String url)
 
        {
 
                Bitmap bitmap = null;
 
        InputStream in = null;
 
        OutputStream out = null;
 
        int IO_BUFFER_SIZE=1*1024*1024; 
 
        ImageView i = new ImageView(this);
 
        try {
 
            in = new BufferedInputStream(new URL(url).openStream(),IO_BUFFER_SIZE);
 
            final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
 
            out = new BufferedOutputStream(dataStream, 4 * 1024);
 
            copy(in, out);
 
            out.flush();
 
            final byte[] data = dataStream.toByteArray();
 
            bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
 
           // i.setImageBitmap(bitmap);
 
        } catch (IOException e) {
 
            android.util.Log.e("IO", "Could not load buddy icon: "
 
+ this, e);
 
        } finally {
 
            closeStream(in);
 
            closeStream(out);
 
        } 
 
        return bitmap;
 
        }
 
        private static void copy(InputStream in, OutputStream out) throws
 
        IOException {
 
                byte[] b = new byte[4 * 1024];
 
                int read;
 
                while ((read = in.read(b)) != -1) {
 
                    out.write(b, 0, read);
 
                }
 
            }
 
            /**
 
             * Closes the specified stream.
 
             *
 
             * @param stream The stream to close.
 
             */
 
            private static void closeStream(Closeable stream) {
 
                if (stream != null) {
 
                    try {
 
                        stream.close();
 
                    } catch (IOException e) {
 
                        android.util.Log.e("IO", "Could not close stream", e);
 
                    }
 
                }
 
            } 
Parsed in 0.036 seconds,  using GeSHi 1.0.8.4

It works fine initially.I dont know what is the reason behind.It gives new error now : jpeg error 20 Improper call to JPEG library in state %d........