Bitmap currentIconBitmap = BitmapFactory.decodeByteArray(currentIconByteArray, 0, currentIconByteArray.length);
// Display `currentIconBitmap` in `edit_folder_current_icon`.
ImageView currentIconImageView = (ImageView) alertDialog.findViewById(R.id.edit_folder_current_icon);
Bitmap currentIconBitmap = BitmapFactory.decodeByteArray(currentIconByteArray, 0, currentIconByteArray.length);
// Display `currentIconBitmap` in `edit_folder_current_icon`.
ImageView currentIconImageView = (ImageView) alertDialog.findViewById(R.id.edit_folder_current_icon);