How to create android shape background programmatically?

You can do it like this:

public static void customView(View v, int backgroundColor, int borderColor) {
    GradientDrawable shape = new GradientDrawable();
    shape.setShape(GradientDrawable.RECTANGLE);
    shape.setCornerRadii(new float[] { 8, 8, 8, 8, 0, 0, 0, 0 });
    shape.setColor(backgroundColor);
    shape.setStroke(3, borderColor);
    v.setBackground(shape);
}

See the documentation for the meaning of setCornerRadii params.

You can use this function throughout your app and can put border and background color of your choice.