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POAndroid - AsyncTask working with Bitmap - OutOfMemoryError
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Id
6982532
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0
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1
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2011-08-09T08:32:18.173
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2011-08-08T12:58:49.747
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2011-08-08T13:38:13.160
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2017-05-23T10:28:16.603
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Body
<blockquote> Possible Duplicate: <a href="https://stackoverflow.com/questions/6815899/outofmemory-exception-when-handling-images">OutOfMemory Exception when handling images</a> </blockquote> I have a Bitmap creation within a AsyncTask, which goes like this: <pre><code>private WeakReference<Bitmap> myBitmap; private WeakReference<Bitmap> endResultBitmap; private ImageView imv; </code></pre> ... <pre><code>private class SendBitmap extends AsyncTask<Integer, Void, Bitmap> { public SendBitmap(Bitmap bitmap) { myBitmap = new WeakReference<Bitmap>(bitmap); } @Override protected Bitmap doInBackground(Integer... params) { Bitmap bm = null; bm = getBitmapFromNet(params[0]); return bm; } </code></pre> And then I want to create Bitmap on which the received Bitmap would appear twice (one next to another) <pre><code>protected void onPostExecute(Bitmap result) { endResultBitmap = new WeakReference<Bitmap>(Bitmap.createBitmap(result.getWidth() * 2, result.getHeight(), result.getConf())); Canvas canvas = new Canvas(endResultBitmap.get()); canvas.drawBitmap(result, 0, 0, null); canvas.drawBitmap(result, result.getWidth(), 0, null); imv.setImageBitmap(endResultBitmap); } </code></pre> then I have my onCancelled() method: <pre><code>@Override protected void onCancelled(Bitmap result) { if(endResultBitmap!=null) { endResultBitmap.recycle(); endResultBitmap = null; } } </code></pre> The thing is that if I execute this AsyncTask couple of times, the heap grows as mad. I execute the AsyncTask when a button is pressed, but at first I do: <pre><code>public void onClicked(View v) { if(asyncTaskInstance != null) asyncTaskInstance.cancel(); asynctaskInstance.execute(2); } </code></pre> But again, the Heap grows as mad and at some point it will crash with OutOfMemoryError. Any idea? Do I have something wrong in my Design of the task?
Tags
<java><android><multithreading><android-asynctask>
Title
Android - AsyncTask working with Bitmap - OutOfMemoryError
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