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PCH ??? Xcode ????????

PCH ????? Pre-Compiled Header ???? Xcode ??????????????????????????????????????????????

1. PCH ????

PCH ???????????????????????????? Xcode 6 ???????????????????? PCH ?????????

2. ???? PCH ??

? Xcode ????? PCH ????????

? PCH ?????????????????????

3. ?????

? PCH ??????????????? .m ???????????????????

3.1 ???????

#define SCREEN_WIDTH    [UIScreen mainScreen].bounds.size.width
#define SCREEN_HEIGHT   [UIScreen mainScreen].bounds.size.height

????????????????

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000
#define SCREEN_WIDTH ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? [UIScreen mainScreen].nativeBounds.size.width / [UIScreen mainScreen].nativeScale : [UIScreen mainScreen].bounds.size.width)
#define SCREEN_HEIGHT ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? [UIScreen mainScreen].nativeBounds.size.height / [UIScreen mainScreen].nativeScale : [UIScreen mainScreen].bounds.size.height)
#define SCREEN_SIZE ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? CGSizeMake([UIScreen mainScreen].nativeBounds.size.width / [UIScreen mainScreen].nativeScale, [UIScreen mainScreen].nativeBounds.size.height / [UIScreen mainScreen].nativeScale) : [UIScreen mainScreen].bounds.size)
#else
#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height
#define SCREEN_SIZE [UIScreen mainScreen].bounds.size
#endif

3.2 ??????

#define WMNotificationCenter [NSNotificationCenter defaultCenter]

3.3 ??????

#define WMRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0]

3.4 ?? RGB/RGBA ??

#define WMRGBColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
#define WMRGBAColor(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:a]
#define WMClearColor [UIColor clearColor]

3.5 ?????

#ifdef DEBUG
#define LRLog(...) NSLog(@"%s ?%d? \n %@", __func__, __LINE__, [NSString stringWithFormat:__VA_ARGS__])
#else
#define LRLog(...)
#endif

3.6 ???????

#define WMWeakSelf(type)  __weak typeof(type) weak##type = type;
#define WMStrongSelf(type) __strong typeof(type) type = weak##type;

3.7 ???????

#define WMViewBorderRadius(View, Radius, Width, Color) \
[View.layer setCornerRadius:Radius]; \
[View.layer setMasksToBounds:YES]; \
[View.layer setBorderWidth:Width]; \
[View.layer setBorderColor:[Color CGColor]]

3.8 ???????

#define WMDegreesToRadian(x) (M_PI * x / 180.0)
#define WMRadianToDegrees(radian) (radian * 180.0 / M_PI)

3.9 ??????/????

// ?????
#define kGetViewWidth(view)  view.frame.size.width
#define kGetViewHeight(view) view.frame.size.height
#define kGetViewX(view)      view.frame.origin.x
#define kGetViewY(view)      view.frame.origin.y
#define kGetImage(imageName) [UIImage imageNamed:[NSString stringWithFormat:@"%@", imageName]]

3.10 ARC ? MRC ??

#if __has_feature(objc_arc)
// ARC
#else
// MRC
#endif

3.11 ???????????

// ????? iPhone
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define IS_IPHONE ([[UIDevice currentDevice] model] isEqualToString:@"iPhone")
// ????? iPad
#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPAD ([[UIDevice currentDevice] model] isEqualToString:@"iPad")
// ????? iPod
#define IS_IPOD ([[UIDevice currentDevice] model] isEqualToString:@"iPod touch")
// ????? iPhone 5SE
#define iPhone5SE [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 568.0f
// ????? iPhone 6/6s
#define iPhone6_6s [[UIScreen mainScreen] bounds].size.width == 375.0f && [[UIScreen mainScreen] bounds].size.height == 667.0f
// ????? iPhone 6Plus/6sPlus
#define iPhone6Plus_6sPlus [[UIScreen mainScreen] bounds].size.width == 414.0f && [[UIScreen mainScreen] bounds].size.height == 736.0f
// ??????
#define IOS_SYSTEM_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]
#define IOS_SYSTEM_STRING [[UIDevice currentDevice] systemVersion]
// ?? iOS 8 ?????
#define IOS_VERSION_8_OR_LATER (([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) ? (YES) : (NO))

3.12 ????????

// ????? iOS ??
#if TARGET_OS_IPHONE
# endif
// ????????
#if (TARGET_IPHONE_SIMULATOR)
# else
# endif

3.13 ??????

// ?? temp ??
#define kPathTemp NSTemporaryDirectory()
// ???? Document ??
#define kPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
// ???? Cache ??
#define kPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]

????????????????????????????

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