1.获取屏幕宽度与高度

define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

define SCREENH_HEIGHT [UIScreen mainScreen].bounds.size.height

2.获取通知中心

define WDNotificationCenter [NSNotificationCenter defaultCenter]

3.设置随机颜色

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

4.设置RGB颜色/设置RGBA颜色

define RGBColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]

define RGBAColor(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(r)/255.0 blue:(r)/255.0 alpha:a]

// clear背景颜色

define ClearColor [UIColor clearColor]

5.自定义高效率的 NSLog

项目开发中，我们会在许多地方加上Log，但是发布的时候又不想用这些Log，我们也不可能一个一个的删除，所以自定义Log是必然的！

ifdef DEBUG

define WDLog(...) NSLog(@"%s 第%d行 \n %@\n\n",func,LINE,[NSString stringWithFormat:VA_ARGS])

else

define WDLog(...)

endif

6.弱引用/强引用

define WeakSelf(type) __weak typeof(type) weak##type = type;

define StrongSelf(type) __strong typeof(type) type = weak##type;

7.设置 view 圆角和边框

define ViewBorderRadius(View, Radius, Width, Color)\

[View.layer setCornerRadius:(Radius)];
[View.layer setMasksToBounds:YES];
[View.layer setBorderWidth:(Width)];
[View.layer setBorderColor:[Color CGColor]]

8.由角度转换弧度 由弧度转换角度

define DegreesToRadian(x) (M_PI * (x) / 180.0)

define RadianToDegrees(radian) (radian*180.0)/(M_PI)

9.设置加载提示框（第三方框架：Toast）

此宏定义非常好用，但是小伙伴需要CocoaPods导入第三方框架：Toast
使用方法如下：
WDToast(@"网络加载失败");

define WDToast(str) CSToastStyle *style = [[CSToastStyle alloc] initWithDefaultStyle]; \

[kWindow makeToast:str duration:0.6 position:CSToastPositionCenter style:style];
kWindow.userInteractionEnabled = NO;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.6 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
kWindow.userInteractionEnabled = YES;
});\

10.设置加载提示框（第三方框架：MBProgressHUD）

此宏定义同上一个类似，如下图：

MBProgressHUD提示框.png
// 加载

define kShowNetworkActivityIndicator() [UIApplication sharedApplication].networkActivityIndicatorVisible = YES

// 收起加载

define HideNetworkActivityIndicator() [UIApplication sharedApplication].networkActivityIndicatorVisible = NO

// 设置加载

define NetworkActivityIndicatorVisible(x) [UIApplication sharedApplication].networkActivityIndicatorVisible = x

define kWindow [UIApplication sharedApplication].keyWindow

define kBackView for (UIView *item in kWindow.subviews) { \

if(item.tag == 10000)
{
[item removeFromSuperview];
UIView * aView = [[UIView alloc] init];
aView.frame = [UIScreen mainScreen].bounds;
aView.tag = 10000;
aView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.3];
[kWindow addSubview:aView];
}
} \

define kShowHUDAndActivity kBackView;[MBProgressHUD showHUDAddedTo:kWindow animated:YES];kShowNetworkActivityIndicator()

define kHiddenHUD [MBProgressHUD hideAllHUDsForView:kWindow animated:YES]

define kRemoveBackView for (UIView *item in kWindow.subviews) { \

if(item.tag == 10000)
{
[UIView animateWithDuration:0.4 animations:^{
item.alpha = 0.0;
} completion:^(BOOL finished) {
[item removeFromSuperview];
}];
}
} \

define kHiddenHUDAndAvtivity kRemoveBackView;kHiddenHUD;HideNetworkActivityIndicator()

11.获取view的frame/图片资源

//获取view的frame

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

//获取图片资源

define kGetImage(imageName) [UIImage imageNamed:[NSString stringWithFormat:@"%@",imageName]]

12.获取当前语言

define WDCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])

13.使用 ARC 和 MRC

if __has_feature(objc_arc)

// ARC

else

// MRC

endif

14.判断当前的iPhone设备/系统版本

//判断是否为iPhone

define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

//判断是否为iPad

define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

//判断是否为ipod

define IS_IPOD ([[[UIDevice currentDevice] model] isEqualToString:@"iPod touch"])

// 判断是否为 iPhone 5SE

define iPhone5SE [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 568.0f

// 判断是否为iPhone 6/6s

define iPhone6_6s [[UIScreen mainScreen] bounds].size.width == 375.0f && [[UIScreen mainScreen] bounds].size.height == 667.0f

// 判断是否为iPhone 6Plus/6sPlus

define iPhone6Plus_6sPlus [[UIScreen mainScreen] bounds].size.width == 414.0f && [[UIScreen mainScreen] bounds].size.height == 736.0f

//获取系统版本

define IOS_SYSTEM_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]

//判断 iOS 8 或更高的系统版本

define IOS_VERSION_8_OR_LATER (([[[UIDevice currentDevice] systemVersion] floatValue] >=8.0)? (YES):(NO))

15.判断是真机还是模拟器

if TARGET_OS_IPHONE

//iPhone Device

endif

if TARGET_IPHONE_SIMULATOR

//iPhone Simulator

endif

16.沙盒目录文件

//获取temp

define kPathTemp NSTemporaryDirectory()

//获取沙盒 Document

define kPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]

//获取沙盒 Cache

define kPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]

17.GCD 的宏定义

//GCD - 一次性执行

define kDISPATCH_ONCE_BLOCK(onceBlock) static dispatch_once_t onceToken; dispatch_once(&onceToken, onceBlock);

//GCD - 在Main线程上运行

define kDISPATCH_MAIN_THREAD(mainQueueBlock) dispatch_async(dispatch_get_main_queue(), mainQueueBlock);

//GCD - 开启异步线程

define kDISPATCH_GLOBAL_QUEUE_DEFAULT(globalQueueBlock) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), globalQueueBlocl);