Convert drawable from bitmap on Android

Bitmap to Drawable

Drawable d = new BitmapDrawable(getResources(),bitmap);


alertDialog.setTitle("Product Information");
    alertDialog.setMessage(myProduct.getMyProductInfo());
    alertDialog.setButton("Back", new DialogInterface.OnClickListener() {
       @Override
        public void onClick(DialogInterface dialog, int which) {
           showPrompt();
       }
    });
    alertDialog.setIcon(d);//<--Here Need to Provide a different image each time
    alertDialog.show();