Android Bitmap Memory Leak, what to do more

问题

I'm building an app where you have the function to upload a post with an image. When the user picks the image I show a thumbnail of it but when I change the screen orientation I get a memory leak. I managed to get it down to the point where it takes about 25 orientation changes to leak memory but can I completely avoid it?

This is the code I use for the bitmap,

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());

来源：https://stackoverflow.com/questions/5734892/android-bitmap-memory-leak-what-to-do-more