Android loading drawable into ImageView taking a lot of memory

I'm having a problem.

I'm loading 9 drawables into 9 imageViews dynamically. (drawables are different each time) The drawable id is stored in the object class so when I load this drawable I set the ImageRessource to the imageView by using imageView.setImageRessource(myObject.getRessourceId()); Everything is working fine but when the 9 drawables are loaded, I see on the Android Memory Monitor that the allocate memory reaches 80MB and I think this isn't normal... (Is it?)

I tried different things to solve it:

• Load the drawable with the library Picasso.


• Use BitmapFactory.decodeResssource to create a Bitmap and then setImageBitmap on the imageView.

With all the techniques I tried, it takes 80MB of allocated memory.

I tried using different image resolution so in ldpi (~30Ko/image) and in xhdpi (~87Ko/image) but it doesn't change anything for each image loaded it takes about 5MB of allocated memory...

So my question is : How can I reduce the allocated memory for thoses images?

Thank you in advance, I can give parts of code if it's necessary.

Regards

PS: The ImageViews are created dynamically in the onCreate() method.