IOS圆角+圆角边框

//圆角if (isRounded) {        imageView.layer.cornerRadius = 20.0;        imageView.layer.masksToBounds = YES;      }    //圆角边框    if(isBorder){        imageView.layer.borderWidth  = 3;          imageView.layer.borderColor= [[UIColor whiteColor] CGColor];    }