微调 M13Checkbox

项目里面要用到 Checkbox，iOS 原生是没有的，本着不重复发明轮子的原则（其实是你懒），引入 M13Checkbox 来实现。

载入后是这样的

大哥您这样子有点出格啊，和我的审美不符，改一下吧。

改完了感觉好点吧

料想作者大哥应该是用 PaintCode 之类的东西生成的代码吧，坐标值看晕。getDefaultShape 方法中先整体缩水点，然后纵向移动一点来调整，偷懒直接把 y 都加个 h 就好了。代码如下：

- (UIBezierPath *)getDefaultShape
{
    // 缩小比例到 80%
    CGFloat height = [self heightForCheckbox] * 0.8;
    UIBezierPath* bezierPath = [UIBezierPath bezierPath];
    // 纵向偏移量
    CGFloat h = height * 0.3;
    [bezierPath moveToPoint: CGPointMake((0.17625 * height), (0.368125 * height) + h)];
    [bezierPath addCurveToPoint: CGPointMake((0.17625 * height), (0.46375 * height + h)) controlPoint1: CGPointMake((0.13125 * height), (0.418125 * height)  + h) controlPoint2: CGPointMake((0.17625 * height), (0.46375 * height  + h))];
    [bezierPath addLineToPoint: CGPointMake((0.4 * height), (0.719375 * height + h))];
    [bezierPath addCurveToPoint: CGPointMake((0.45375* height), (0.756875 * height + h)) controlPoint1: CGPointMake((0.4 * height), (0.719375 * height + h)) controlPoint2: CGPointMake((0.4275 * height), (0.756875 * height + h))];
    [bezierPath addCurveToPoint: CGPointMake((0.505625 * height), (0.719375 * height + h)) controlPoint1: CGPointMake((0.480625 * height), (0.75625 * height + h)) controlPoint2: CGPointMake((0.505625 * height), (0.719375 * height + h))];
    [bezierPath addLineToPoint: CGPointMake((0.978125* height), (0.145625* height + h))];
    [bezierPath addCurveToPoint: CGPointMake((0.978125* height), (0.050625* height + h)) controlPoint1: CGPointMake((0.978125* height), (0.145625* height + h)) controlPoint2: CGPointMake((1.026875* height), (0.09375* height + h))];
    [bezierPath addCurveToPoint: CGPointMake((0.885625* height), (0.050625* height + h)) controlPoint1: CGPointMake((0.929375* height), (0.006875* height + h)) controlPoint2: CGPointMake((0.885625* height), (0.050625* height + h))];
    [bezierPath addLineToPoint: CGPointMake((0.45375* height), (0.590625* height + h))];
    [bezierPath addLineToPoint: CGPointMake((0.26875* height), (0.368125 * height + h))];
    [bezierPath addCurveToPoint: CGPointMake((0.17625 * height), (0.368125 * height + h)) controlPoint1: CGPointMake((0.26875* height), (0.368125 * height + h)) controlPoint2: CGPointMake((0.221875* height), (0.318125* height + h))];
    [bezierPath closePath];
    bezierPath.miterLimit = 0;
    return bezierPath;
}