public RoundingParams setBorder(@ColorInt int color, float width) {
    Preconditions.checkArgument(width >= 0, "the border width cannot be < 0");
    mBorderWidth = width;
    mBorderColor = color;
    return this;
  }
Sets the border around the rounded drawable

@param color of the border
@param width of the width
drawee/src/main/java/com/facebook/drawee/generic/RoundingParams.java