QPUI Q&A

RelativeLayout layout = (RelativeLayout) view.findViewById(R.id.card_view_one); // id fetch from xml- If the id is different rename the id.
ShapeDrawable rectShapeDrawable = new ShapeDrawable(); // pre defined class

// get paint
Paint paint = rectShapeDrawable.getPaint();

// set border color, stroke and stroke width
paint.setColor(Color.GRAY);
paint.setStyle(Style.STROKE);
paint.setStrokeWidth(1); // you can change the value to make it thicker. But 1 should be more appropriate.
layout.setBackgroundDrawable(rectShapeDrawable);

QPUI - Krishneelg3