UIView画虚线边框

//fatherView加虚线边框

-(void)boundingRectangleForView:(UIView *)fatherView{

    CAShapeLayer *borderLayer = [CAShapeLayer layer];
    borderLayer.fillColor = [UIColor clearColor].CGColor;
    borderLayer.strokeColor = [UIColor nvColorWith666].CGColor;
    borderLayer.path = [UIBezierPath bezierPathWithRect:fatherView.bounds].CGPath;
    borderLayer.lineWidth = .f;
    borderLayer.lineCap = @"square";
    borderLayer.lineDashPattern = @[@, @];
    [fatherView.layer addSublayer:borderLayer];
}