ios View畫某個角為圓角

- (void)drawRect:(CGRect)rect

{

    if ([self.state isEqualToString:@"1"]) {//上圓角

        UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds byRoundingCorners:UIRectCornerTopRight | UIRectCornerTopLeft cornerRadii:CGSizeMake(10, 10)];

        CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];

        maskLayer.frame = self.bounds;

        maskLayer.path = maskPath.CGPath;

        self.layer.mask = maskLayer;

    } else if([self.state isEqualToString:@"2"]) {//下圓角

        UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds byRoundingCorners:UIRectCornerBottomRight | UIRectCornerBottomLeft cornerRadii:CGSizeMake(10, 10)];

        CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];

        maskLayer.frame = self.bounds;

        maskLayer.path = maskPath.CGPath;

        self.layer.mask = maskLayer;

    }

    //儲存格分割線

    CALayer *bottomBorder = [CALayer layer];

    bottomBorder.frame = CGRectMake(0,self.frame.size.height-1,self.frame.size.width, 1);

    bottomBorder.backgroundColor = COLOR_SEP.CGColor;

    [self.layer addSublayer:bottomBorder];

    

}