Out Of Memory Error with images

Question

i am displaying images in listview and getting out of memory error any one guide me what is the solution to this problem here is my code

LogCat

ERROR/AndroidRuntime(1010): java.lang.OutOfMemoryError: bitmap size exceeds VM budget
ERROR/AndroidRuntime(1010):     at android.graphics.BitmapFactory.nativeDecodeByteArray(Native Method)
ERROR/AndroidRuntime(1010):     at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:405)
ERROR/AndroidRuntime(1010):     at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:418)
ERROR/AndroidRuntime(1010):     at com.Adapters.AdapterTours.getView(AdapterTours.java:73)
ERROR/AndroidRuntime(1010):     at android.widget.AbsListView.obtainView(AbsListView.java:1409)
ERROR/AndroidRuntime(1010):     at android.widget.ListView.makeAndAddView(ListView.java:1745)
ERROR/AndroidRuntime(1010):     at android.widget.ListView.fillUp(ListView.java:700)
ERROR/AndroidRuntime(1010):     at android.widget.ListView.fillGap(ListView.java:646)
ERROR/AndroidRuntime(1010):     at android.widget.AbsListView.trackMotionScroll(AbsListView.java:3399)
ERROR/AndroidRuntime(1010):     at android.widget.AbsListView.onTouchEvent(AbsListView.java:2233)
ERROR/AndroidRuntime(1010):     at android.widget.ListView.onTouchEvent(ListView.java:3446)
ERROR/AndroidRuntime(1010):     at android.view.View.dispatchTouchEvent(View.java:3885)
ERROR/AndroidRuntime(1010):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903)
ERROR/AndroidRuntime(1010):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
ERROR/AndroidRuntime(1010):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
ERROR/AndroidRuntime(1010):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
ERROR/AndroidRuntime(1010):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
ERROR/AndroidRuntime(1010):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1691)
ERROR/AndroidRuntime(1010):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1125)
ERROR/AndroidRuntime(1010):     at android.app.Activity.dispatchTouchEvent(Activity.java:2096)
ERROR/AndroidRuntime(1010):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1675)
ERROR/AndroidRuntime(1010):     at android.view.ViewRoot.deliverPointerEvent(ViewRoot.java:2194)
ERROR/AndroidRuntime(1010):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1878)
ERROR/AndroidRuntime(1010):     at android.os.Handler.dispatchMessage(Handler.java:99)
ERROR/AndroidRuntime(1010):     at android.os.Looper.loop(Looper.java:130)
ERROR/AndroidRuntime(1010):     at android.app.ActivityThread.main(ActivityThread.java:3683)
ERROR/AndroidRuntime(1010):     at java.lang.reflect.Method.invokeNative(Native Method)
ERROR/AndroidRuntime(1010):     at java.lang.reflect.Method.invoke(Method.java:507)
ERROR/AndroidRuntime(1010):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
ERROR/AndroidRuntime(1010):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
ERROR/AndroidRuntime(1010):     at dalvik.system.NativeStart.main(Native Method)

GetView Method

public View getView(final int position, View convertView, ViewGroup parent) {

      ViewHolder holder;

      if (convertView == null) {
        convertView = mInflater.inflate(R.layout.list_tours, null);
        holder = new ViewHolder();
        holder.tourTitle = (TextView) convertView.findViewById(R.id.tourTitle);
        holder.tourIcon = (ImageView) convertView.findViewById(R.id.tourIcon);
        holder.tourDetail = (TextView) convertView.findViewById(R.id.tourDetail);
        convertView.setTag(holder);

      } else {
        holder = (ViewHolder) convertView.getTag();
      }


      DalTours tour = getItem(position);

        String tempTag = String.valueOf(tour.getId());
        holder.tourIcon.setTag(tempTag);

        if(tour.getImageByteArray() != null)
        {
            Bitmap image = BitmapFactory.decodeByteArray(tour.getImageByteArray(), 0, tour.getImageByteArray().length);
            holder.tourIcon.setImageDrawable(getScaledImage(image));
            image = null;

        }else
        {


            holder.tourIcon.setTag(tour);
            Bitmap cachedImage = ImageLoader.loadBitmap(tour,new ImageLoader.ImageCallback() {

                @Override
                public void imageLoaded(Bitmap imageBitmap, DalTours tour) {
                    ImageView image = (ImageView)listview.findViewWithTag(tour);
                     if(image != null)
                      {

                      try
                      {  
                          ByteArrayOutputStream stream = new ByteArrayOutputStream();
                          if(imageBitmap != null)
                          {


                              image.setImageDrawable(getScaledImage(imageBitmap));
                              imageBitmap.compress(CompressFormat.PNG, 0 ,stream);
                              byte[] bitmapdata = stream.toByteArray();
                              tours.get(position).setImageByteArray(bitmapdata);


                         }
                          stream = null;
                      }finally
                      {

                      }
                      }

                }
            });
              holder.tourIcon.setImageDrawable(getScaledImage(cachedImage));

        }

      holder.tourTitle.setText(tours.get(position).getTitle());
      holder.tourDetail.setText(tours.get(position).getDetail());

      return convertView;
    }

image Scale Function

 public Drawable getScaledImage(Bitmap actualBitmap)
    {
        BitmapDrawable bmd= null;
        if(actualBitmap != null)
        {

            int width = actualBitmap.getWidth();
            int height = actualBitmap.getHeight();

            Activity parent = (Activity)context;
            Display display = parent.getWindowManager().getDefaultDisplay(); 
            int Screenwidth = display.getWidth();
            int Screenheight = display.getHeight();


         float newWidth = (Screenwidth*35)/100;

         float temp = newWidth / width;
         float newHeight =  temp * height;



        float scaleWidth = ((float) newWidth) / width;
        float scaleHeight = ((float) newHeight) / height;

        Matrix matrix = new Matrix();

        matrix.postScale(scaleWidth, scaleHeight);
        Bitmap resizedBitmap = Bitmap.createBitmap(actualBitmap, 0, 0, 
                          width, height, matrix, true); 

        bmd = new BitmapDrawable(resizedBitmap);
        }
        return bmd;

    }

Image Loader Class

public  class ImageLoader {
    private static HashMap<String, SoftReference<Bitmap>> imageCache;

    public ImageLoader() {
        //imageCache = new HashMap<String, SoftReference<Bitmap>>();
    }

    public static Bitmap loadBitmap(final DalTours tour, final ImageCallback imageCallback) {
        if(imageCache == null)
            imageCache = new HashMap<String, SoftReference<Bitmap>>();

        if (imageCache.containsKey(tour.getImageurl())) {
            SoftReference<Bitmap> softReference = imageCache.get(tour.getImageurl());
            Bitmap Bitmap = softReference.get();
            if (Bitmap != null) {
                return Bitmap;
            }
        }
        final Handler handler = new Handler() {
            @Override
            public void handleMessage(Message message) {
                imageCallback.imageLoaded((Bitmap) message.obj, tour);
            }
        };
        new Thread() {
            @Override
            public void run() {
                Bitmap Bitmap = loadImageFromUrl(tour.getImageurl());
                imageCache.put(tour.getImageurl(), new SoftReference<Bitmap>(Bitmap));
                Message message = handler.obtainMessage(0, Bitmap);
                handler.sendMessage(message);
            }
        }.start();
        return null;
    }

    public static Bitmap loadImageFromUrl(String url) {

        Bitmap bm;
        try {  

                URL aURL = new URL(url);  
                URLConnection conn = aURL.openConnection(); 

                conn.connect();  
                InputStream is = null;
                try
                {
                 is= conn.getInputStream();  
                }catch(IOException e)
                {
                     return null;
                }

                BufferedInputStream bis = new BufferedInputStream(is);  

                bm = BitmapFactory.decodeStream(bis);  
                bis.close();  
                is.close();  

           } catch (IOException e) {  
            return null;
           }  

           return  bm;


    }

    public interface ImageCallback {
        public void imageLoaded(Bitmap imageBitmap, DalTours tour);
    }
}

any help would be apprecicated

Answer 1

For Solving java.lang.OutOfMemoryError Exception at android.graphics.BitmapFactory.nativeDecodeByteArray, you should use following Code:

BitmapFactory.Options options=new BitmapFactory.Options();// Create object of bitmapfactory's option method for further option use
options.inPurgeable = true; // inPurgeable is used to free up memory while required
Bitmap songImage1 = BitmapFactory.decodeByteArray(thumbnail,0, thumbnail.length,options);//Decode image, "thumbnail" is the object of image file
Bitmap songImage = Bitmap.createScaledBitmap(songImage1, 50 , 50 , true);// convert decoded bitmap into well scalled Bitmap format.

imageview.SetImageDrawable(songImage);