What's meaning of this exception?
<p>I am showing image into listview from webservice suppose I am testing application 10 times
   then 6 time this exception comes please anyone help me.
                                                          I am calling web service using AsyncTask.</p>

<pre><code>06-12 14:49:53.132: E/dalvikvm-heap(3071): Out of memory on a 1920016-byte allocation.
 06-12 14:49:53.160: E/AndroidRuntime(3071): FATAL EXCEPTION: AsyncTask #3
 06-12 14:49:53.160: E/AndroidRuntime(3071): java.lang.RuntimeException: An error  occured while executing doInBackground()
  06-12 14:49:53.160: E/AndroidRuntime(3071):   at android.os.AsyncTask$3.done(AsyncTask.java:278)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
06-12 14:49:53.160: E/AndroidRuntime(3071):     at java.lang.Thread.run(Thread.java:856)
06-12 14:49:53.160: E/AndroidRuntime(3071): Caused by: java.lang.OutOfMemoryError
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at an droid.graphics.BitmapFactory.decodeStream(BitmapFactory.java:493)
06-12 14:49:53.160: E/AndroidRuntime(3071):     at com.rentfaster.utilities.ImageLoader.decodeFile(ImageLoader.java:142)
06-12 14:49:53.160: E/AndroidRuntime(3071):     at com.rentfaster.utilities.ImageLoader.getBitmap(ImageLoader.java:78)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at com.rentfaster.handler.DetailPhotoHandler.imagefecher(DetailPhotoHandler.java:211)
  06-12 14:49:53.160: E/AndroidRuntime(3071):   at com.rentfaster.handler.DetailPhotoHandler.characters(DetailPhotoHandler.java:153)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at org.apache.harmony.xml.ExpatParser.text(ExpatParser.java:163)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at org.apache.harmony.xml.ExpatParser.appendBytes(Native Method)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at org.apache.harmony.xml.ExpatParser.parseFragment(ExpatParser.java:513)
  06-12 14:49:53.160: E/AndroidRuntime(3071):   at org.apache.harmony.xml.ExpatParser.parseDocument(ExpatParser.java:474)
  06-12 14:49:53.160: E/AndroidRuntime(3071):   at org.apache.harmony.xml.ExpatReader.parse(ExpatReader.java:321)
  06-12 14:49:53.160: E/AndroidRuntime(3071):   at org.apache.harmony.xml.ExpatReader.parse(ExpatReader.java:279)
 06-12 14:49:53.160: E/AndroidRuntime(3071):    at com.rentfaster.home.PropertyDetail$Photostask.doInBackground(PropertyDetail.java:1174)
  06-12 14:49:53.160: E/AndroidRuntime(3071):   at com.rentfaster.home.PropertyDetail$Photostask.doInBackground(PropertyDetail.java:1)
06-12 14:49:53.160: E/AndroidRuntime(3071):     at android.os.AsyncTask$2.call(AsyncTask.java:264)
06-12 14:49:53.160: E/AndroidRuntime(3071):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
06-12 14:49:53.160: E/AndroidRuntime(3071):     ... 4 more
06-12 14:50:02.882: E/parse exception0(3258):  dont know why
06-12 14:50:02.882: E/XML Error(3258): java.net.MalformedURLException: Protocol not found: &amp;area=53.447557,-113.460058,53.447557,-113.460058&amp;max=100
06-12 14:50:02.921: E/MapActivity(3258): Couldn't get connection factory client
</code></pre>

<p>I am still facing Out of memory problem ,I am using this code please help me</p>

<pre><code>//decodes image and scales it to reduce memory consumption
    private static Bitmap decodeFile(File f){
       try {
        //decode image size
        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inSampleSize = 2;
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(new FileInputStream(f),null,o);

        //Find the correct scale value. It should be the power of 2.
        final int REQUIRED_SIZE=70;
        int width_tmp=o.outWidth, height_tmp=o.outHeight;
        int scale=1;
        while(true){
            if(width_tmp/2&lt;REQUIRED_SIZE || height_tmp/2&lt;REQUIRED_SIZE)
                break;
            width_tmp/=2;
            height_tmp/=2;
            scale*=2;
        }

        //decode with inSampleSize
        BitmapFactory.Options o2 = new BitmapFactory.Options();

        o2.inSampleSize=2;
        return BitmapFactory.decodeStream(new FileInputStream(f), null, null);
    } catch (FileNotFoundException e) {}
    return null;
}
</code></pre>
