iOS开发常用宏定义 iOS开发常用宏定义

iOS 日常工作之常用宏定义大全
iOS-OC中常见的一些宏
YYCategories
目录 1、长、宽、高
2、判断设备、系统版本
3、dispatch_main_async_safe
4、WeakSelf、StrongSelf
5、View 圆角、边框
6、获取沙盒路径
7、随机数
8、颜色设置相关
9、NSLog
后续再更新...
1、长、宽、高

// W H #define kSCREEN_SIZE [UIScreen mainScreen].bounds.size #define kSCREEN_WIDTH [UIScreen mainScreen].bounds.size.width #define kSCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height#define kSTATUS_H([[UIApplication sharedApplication] statusBarFrame].size.height>20?44:20) // 适配刘海屏状态栏 #define kTABBAR_H([[UIApplication sharedApplication] statusBarFrame].size.height>20?83:49) // 适配刘海屏底栏高度 #define kBOTTOM_H([[UIApplication sharedApplication] statusBarFrame].size.height>20?34:0)// 适配刘海屏底部多出来的高度

2、判断设备、系统版本

//----------------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"])//----------------判断系统版本--------------- // 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)) // 判断 iOS 10 或更高的系统版本 #define IOS_VERSION_10_OR_LATER (([[[UIDevice currentDevice] systemVersion] floatValue] >=10.0)? (YES):(NO))//----------------判断机型根据尺寸--------------- // 判断是否为 iPhone 4/4S - 3.5 inch #define iPhone4_4S [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 480.0f // 判断是否为 iPhone 5/5SE - 4.0 inch #define iPhone5_5SE [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 568.0f // 判断是否为iPhone 6/6S/7/8 - 4.7 inch #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/7P/8P - 5.5 inch #define iPhone6Plus_8Plus [[UIScreen mainScreen] bounds].size.width == 414.0f && [[UIScreen mainScreen] bounds].size.height == 736.0f // 判断是否为iPhoneX - 5.8 inch #define iPhoneX ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1125, 2436), [[UIScreen mainScreen] currentMode].size) : NO) // 判断是否为iPhoneXS - 5.8 inch #define iPhoneXS ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1125, 2436), [[UIScreen mainScreen] currentMode].size) : NO) // 判断是否为iPhoneXR - 6.1 inch #define iPhoneXR ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(828, 1792), [[UIScreen mainScreen] currentMode].size) : NO) // 判断是否为iPhoneXS MAX - 6.5 inch #define iPhoneXSMax ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1242, 2688), [[UIScreen mainScreen] currentMode].size) : NO)// 主要是用于区分是否是刘海屏 #define LiuHaiPhone \ ({BOOL isLiuHaiPhone = NO; \ if (@available(iOS 11.0, *)) {\ isLiuHaiPhone = [[UIApplication sharedApplication] delegate].window.safeAreaInsets.bottom > 0.0; \ }\ (isLiuHaiPhone); })

3、dispatch_main_async_safe

#ifndef dispatch_main_async_safe #define dispatch_main_async_safe(block)\ if (strcmp(dispatch_queue_get_label(DISPATCH_CURRENT_QUEUE_LABEL), dispatch_queue_get_label(dispatch_get_main_queue())) == 0) {\ block(); \ } else {\ dispatch_async(dispatch_get_main_queue(), block); \ } #endif

How to use?

dispatch_main_async_safe(^{ // UI in Main Thread });

详情

【iOS开发常用宏定义】参考与 SDWebimage 源码中，更详细的可参考 SDWebImage4.0源码探究（一）面试题
中第七条 SDWebImage 如何保证UI操作放在主线程中执行？

4、WeakSelf、StrongSelf

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

__weak __typeof(self)weakSelf = self; AFNetworkReachabilityStatusBlock callback = ^(AFNetworkReachabilityStatus status) { __strong __typeof(weakSelf)strongSelf = weakSelf; strongSelf.networkReachabilityStatus = status; if (strongSelf.networkReachabilityStatusBlock) { strongSelf.networkReachabilityStatusBlock(status); } };

// 使用一： WeakSelf(self); [btn mas_makeConstraints:^(MASConstraintMaker *make) { StrongSelf(self); make.left.equalTo(self.view); }]; // 使用二： WeakSelf(self); [btn mas_updateConstraints:^(MASConstraintMaker *make) { make.right.equalTo(weakself.view); }];

5、View 圆角、边框

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

6、获取沙盒路径

//--------------沙盒目录文件路径--------------- // 获取沙盒主目录路径 #define LXSBPath_Home = NSHomeDirectory(); //获取沙盒 Document #define LXSBPath_Document [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] //获取沙盒 Library #define LXSBPath_Library [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) lastObject]; //获取沙盒 Cache #define LXSBPath_Cache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject] //获取temp #define LXSBPath_Temp NSTemporaryDirectory()

7、随机数

//--------------生成随机数--------------- #define LXRandNum(i) arc4random()%i// [0,i) 范围内随机数 #define LXRandNum_FromTo(i,j) (i + (arc4random() % (j – i + 1)))

8、颜色设置相关

//---------------Colour------------------- // 设置随机颜色 #define LXRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0] // 设置RGB颜色/设置RGBA颜色 #define LXRGBAColor(r, g, b, a)[UIColor colorWithRed:r/255.0f green:g/255.0f blue:b/255.0f alpha:a] #define LXRGBColor(r, g, b)LXRGBAColor(r,g,b,1.0f) // 十六进制数值 eg:@"#3499DB" #define LXCOLOR_WITH_HEX [UIColor colorFromHexString: hexValue] #define LXCOLOR_WITH_HEX_1(hexValue) [UIColor colorWithRed:((float)((hexValue & 0xFF0000) >> 16)) / 255.0 green:((float)((hexValue & 0xFF00) >> 8)) / 255.0 blue:((float)(hexValue & 0xFF)) / 255.0 alpha:1.0f]

9、NSLog