iOS - 用Masonry的风格设置Frame?

突然来的想法, 原来也很简单, 刚开始写了一个UIView的分类, 一个继承NSObject的类, 完全模仿Masonry的风格啊, 睡觉前觉得不好, 脑子里大概想了一下, 应该也可以优化成一个分类就够了, 早上试了一下, 果然只需要一个分类就够了呢

用起来就是这样的:

    self.testView = [UIView new];
    [self.view addSubview:self.testView];
    self.testView.x(10.0f).y(0.0).w(100).h(100);

直接上代码了

@interface UIView (LNFrame)

typedef CGRect (^LNSetNewFrameBlock)(CGRect);

- (void)setNewFrame:(LNSetNewFrameBlock)newFrame;

- (UIView *(^)(CGFloat))x;
- (UIView *(^)(CGFloat))y;
- (UIView *(^)(CGFloat))w;
- (UIView *(^)(CGFloat))h;

@end

@implementation UIView (LNFrame)

- (void)setNewFrame:(CGRect (^)(CGRect frame))newFrame
{
    if (newFrame) {
        self.frame = newFrame (self.frame);
    }
}

- (UIView *(^)(CGFloat))x
{
    return ^UIView *(CGFloat x) {
        CGRect frame = self.frame;
        frame.origin.x = x;
        self.frame = frame;
        return self;
    };
}

- (UIView *(^)(CGFloat))y
{
    return ^UIView *(CGFloat y) {
        CGRect frame = self.frame;
        frame.origin.y = y;
        self.frame = frame;
        return self;
    };
}

- (UIView *(^)(CGFloat))w
{
    return ^UIView *(CGFloat w) {
        CGRect frame = self.frame;
        frame.size.width = w;
        self.frame = frame;
        return self;
    };
}

- (UIView *(^)(CGFloat))h
{
    return ^UIView *(CGFloat h) {
        CGRect frame = self.frame;
        frame.size.height = h;
        self.frame = frame;
        return self;
    };
}

@end