android bitmap

Bitmap.Config conf = Bitmap.Config.ARGB_8888;WeakReference<Bitmap> bm = new WeakReference<Bitmap>(Bitmap.createBitmap(3000 + 3000, 2000, conf));Canvas canvas = new Canvas(bm.get());canvas.drawBitmap(firstBitmap, 0, 0, null);canvas.drawBitmap(bm, firstBitmap.getWidth(), 0, null);imageView.setImageBitmap(bm);

---------------orintation memory leak
private ImageView miniPicture;private String imagePath;private WeakReference<Bitmap> imageBitmap;....BitmapFactory.Options options = new BitmapFactory.Options();options.inSampleSize = 8;imageBitmap = new WeakReference<Bitmap>(BitmapFactory.decodeFile(imagePath, options));                miniPicture.setImageBitmap(imageBitmap.get());
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In your onDestroy method you could try something like this:
ImageView imageView = (ImageView)findViewById(R.id.my_image);Drawable drawable = imageView.getDrawable();if (drawable instanceof BitmapDrawable) {    BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;    Bitmap bitmap = bitmapDrawable.getBitmap();    bitmap.recycle();}
public void setImageBitmap(Bitmap bm) {    setImageDrawable(new BitmapDrawable(mContext.getResources(), bm));}