OC使用inline替代宏

CG_INLINE void
GCDDelay(int64_t delayInSeconds,dispatch_block_t block){
    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
    dispatch_after(popTime, dispatch_get_main_queue(),block);
}

CG_INLINE void
GCDOnce( dispatch_once_t  onceToken,DISPATCH_NOESCAPE dispatch_block_t block){
    dispatch_once ( &onceToken, block);
}

CG_INLINE CGFloat
WIDTH(){
    static CGFloat ScreenWidth;
    static dispatch_once_t  onceToken;
    GCDOnce(onceToken,^{
        ScreenWidth = CGRectGetWidth([UIScreen mainScreen].bounds);
    });
    return ScreenWidth;
};

CG_INLINE CGFloat
HEIGHT(){
    static CGFloat ScreenHeight;
    static dispatch_once_t  onceToken;

    GCDOnce(onceToken,^{
        ScreenHeight = CGRectGetHeight([UIScreen mainScreen].bounds);
    });
    return ScreenHeight;
};

CG_INLINE CGRect
SCREEN(){
    static CGRect ScreenRect;
    static dispatch_once_t  onceToken;

    GCDOnce(onceToken,^{
        if (CGRectIsEmpty(ScreenRect) || CGRectIsNull(ScreenRect)) {
            ScreenRect = [UIScreen mainScreen].bounds;
        }
    });
    return ScreenRect;
};

CG_INLINE CGFloat
FontScale(){
    static CGFloat FScale;
    static dispatch_once_t  onceToken;

    GCDOnce(onceToken,^{
        FScale = 72.0/96.0;
    });
    return FScale;
};

CG_INLINE CGFloat
SizeScaleX(){
    static CGFloat autoSizeScaleX;
    static dispatch_once_t  onceToken;

    GCDOnce(onceToken,^{
        autoSizeScaleX = (WIDTH()>480?WIDTH()/320.0:1.0);
    });
    return autoSizeScaleX;
};

CG_INLINE CGFloat
SizeScaleY(){
    static CGFloat autoSizeScaleY;
    static dispatch_once_t  onceToken;

    GCDOnce(onceToken,^{
        autoSizeScaleY = (WIDTH()>480?HEIGHT()/568.0:1.0);
    });
    return autoSizeScaleY;
};

CG_INLINE CGRect
CGLFLMake(CGFloat x, CGFloat y, CGFloat width, CGFloat height)
{
    CGRect rect;
    rect.origin.x = x *SizeScaleX();
    rect.origin.y = y *SizeScaleY();
    rect.size.width = width *SizeScaleX();
    rect.size.height = height *SizeScaleY();
    return rect;
};

CG_INLINE CGPoint
CGPointLFLMake(CGFloat x, CGFloat y)
{
    CGPoint pointLFL;
    pointLFL.x = x * SizeScaleX();
    pointLFL.y = y * SizeScaleY();
    return pointLFL;
};

CG_INLINE CGSize
CGSizeLFLMake(CGFloat width, CGFloat height)
{
    CGSize sizeLFL;
    sizeLFL.width = width* SizeScaleX();
    sizeLFL.height = height* SizeScaleY();
    return sizeLFL;
};