file.java

SimpleAdapter adapter = ...;

adapter.setViewBinder(new SimpleAdapter.ViewBinder() {
	@Override
	public boolean setViewValue(View view, Object data, String textRepresentation) {
		if(view.getId() == R.id.imageView1) { //view is our ImageView
			((ImageView)view).setImageBitmap((Bitmap)data);
			return true;
		}
		//Otherwise do default stuff
		return false;
	}
});