iOS常用宏定义--实用-白红宇

iOS常用宏定义--实用

阅读量：5301 次

发布时间：2019-06-14

本文共 7627 字，大约阅读时间需要 25 分钟。

在这里给大家分享一些常用的宏定义，喜欢的小伙伴可以直接在项目中使用（持续更新）！

为了大家使用方便，请点击！

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

根据一个网友(脱离语言)提醒, 如果支持横屏可以用下面的宏:

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000 // 当前Xcode支持iOS8及以上 #define SCREEN_WIDTH ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)]?[UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale:[UIScreen mainScreen].bounds.size.width) #define SCREENH_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 SCREENH_HEIGHT [UIScreen mainScreen].bounds.size.height #define SCREEN_SIZE [UIScreen mainScreen].bounds.size #endif

2.获取通知中心

#define LRNotificationCenter [NSNotificationCenter defaultCenter]

3.设置随机颜色

#define LRRandomColor [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 LRRGBColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0] #define LRRGBAColor(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 LRClearColor [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 LRLog(...) NSLog(@"%s 第%d行 \n %@\n\n",__func__,__LINE__,[NSString stringWithFormat:__VA_ARGS__]) #else #define LRLog(...) #endif

6.弱引用/强引用

#define LRWeakSelf(type)  __weak typeof(type) weak##type = type; #define LRStrongSelf(type) __strong typeof(type) type = weak##type;

使用方法.png

第二种使用方法，定义完弱引用宏之后，直接敲weak.png

7.设置 view 圆角和边框

#define LRViewBorderRadius(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 LRDegreesToRadian(x) (M_PI * (x) / 180.0) #define LRRadianToDegrees(radian) (radian*180.0)/(M_PI)

9.设置加载提示框（第三方框架：）

此宏定义非常好用，但是小伙伴需要CocoaPods导入第三方框架：

使用方法如下：

LRToast(@"网络加载失败");

#define LRToast(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：）

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（不建议使用）//#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 LRCurrentLanguage ([[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)#define IS_IPHONE ([[[UIDevice currentDevice] model] isEqualToString:@"iPhone"]) //判断是否为iPad #define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) #define IS_IPAD ([[[UIDevice currentDevice] model] isEqualToString:@"iPad"]) //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 //这个方法不是特别靠谱 #define IOS_SYSTEM_VERSION [[[UIDevice currentDevice] systemVersion] floatValue] //建议使用这个方法 #define IOS_SYSTEM_STRING [[UIDevice currentDevice] systemVersion] //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

很多小伙伴都非常烦写GCD的方法，所以在此定义为宏使用更加方便简洁！如下图：

GCD 宏使用方法.png

//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);