iOS 设置边框，阴影，颜色，大小，圆角等

-(void)setViewBorderShadow:(UIView*)shadowview{

    shadowview.backgroundColor = [UIColor colorWithRed:44/255.0 green:21/255.0 blue:111/255.0 alpha:1.0];

    shadowview.layer.shadowColor=  [UIColor colorWithRed:76/255.0 green:72/255.0 blue:255/255.0 alpha:1.0].CGColor;

    shadowview.layer.borderWidth=1.0;

    shadowview.layer.shadowOffset = CGSizeZero;

    shadowview.layer.shadowOpacity=1;

    shadowview.layer.shadowRadius=4;

    shadowview.layer.borderColor =[UIColor colorWithRed:154/255.0 green:138/255.0 blue:255/255.0 alpha:1.0].CGColor;

    shadowview.layer.cornerRadius=15;

}

[self setViewBorderShadow:self.youView];