iOS开发 常用宏定义

#ifndef Public_h

#define Public_h

// 1.判断是否为iOS7

#define iOS7 ([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0)

#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]

// 2.获得RGB颜色

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

#define RGB(r, g, b)                        RGBA(r, g, b, 1.0f)

// 随机色

#define RandomColor                 RGB(arc4random_uniform(256), arc4random_uniform(256), arc4random_uniform(256))

// 3.是否为4inch

#define fourInch ([UIScreen mainScreen].bounds.size.height == 568)

// 4.屏幕大小尺寸

#define screen_width [UIScreen mainScreen].bounds.size.width

#define screen_height [UIScreen mainScreen].bounds.size.height

//重新设定view的Y值

#define setFrameY(view, newY) view.frame = CGRectMake(view.frame.origin.x, newY, view.frame.size.width, view.frame.size.height)

#define setFrameX(view, newX) view.frame = CGRectMake(newX, view.frame.origin.y, view.frame.size.width, view.frame.size.height)

#define setFrameH(view, newH) view.frame = CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, newH)

#define setFrameW(view, newW) view.frame = CGRectMake(view.frame.origin.x, view.frame.origin.y, newW, view.frame.size.height)

//取view的坐标及长宽

#define W(view)    view.frame.size.width

#define H(view)    view.frame.size.height

#define X(view)    view.frame.origin.x

#define Y(view)    view.frame.origin.y

#define ViewBottomY(view) Y(view)+H(view)

#define ViewWidthX(view) X(view)+W(view)

//5.常用对象

#define APPDELEGATE ((AppDelegate *)[UIApplication sharedApplication].delegate)

#define APP_TOPWIMDOW [[UIApplication sharedApplication].windows lastObject]

//重写NSLog,Debug模式下打印日志和当前行数

#if DEBUG

#define NSLog(FORMAT, ...) fprintf(stderr,"line%d content:%s\n",__LINE__,[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);

//fprintf(stderr,"\nfunction:%s line:%d content:%s", __FUNCTION__, __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);

#else

#define NSLog(FORMAT, ...) nil

#endif

//----------------------其他----------------------------

// View 圆角和加边框

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

\

[View.layer setCornerRadius:(Radius)];\

[View.layer setMasksToBounds:YES];\

[View.layer setBorderWidth:(Width)];\

[View.layer setBorderColor:[Color CGColor]]

// View 圆角

#define ViewRadius(View, Radius)\

\

[View.layer setCornerRadius:(Radius)];\

[View.layer setMasksToBounds:YES]

// 是否iPad #define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) // 是否iPad #define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone //获取系统版本 #define IOS_VERSION ［[UIDevice currentDevice] systemVersion] floatValue] #define CurrentSystemVersion ［UIDevice currentDevice] systemVersion] //方正黑体简体字体定义 #define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]

#endif /* Public_h */

以及单例模式

// .h文件的实现 #define SingletonH(methodName) + (instancetype)shared##methodName; // .m文件的实现 #if __has_feature(objc_arc) // 是ARC #define SingletonM(methodName) \ static id _instace = nil; \ + (id)allocWithZone:(struct _NSZone *)zone \ { \ if (_instace == nil) { \ static dispatch_once_t onceToken; \ dispatch_once(&onceToken, ^{ \ _instace = [super allocWithZone:zone]; \ }); \ } \ return _instace; \ } \ \ - (id)init \ { \ static dispatch_once_t onceToken; \ dispatch_once(&onceToken, ^{ \ _instace = [super init]; \ }); \ return _instace; \ } \ \ + (instancetype)shared##methodName \ { \ return [[self alloc] init]; \ } \ + (id)copyWithZone:(struct _NSZone *)zone \ { \ return _instace; \ } \ \ + (id)mutableCopyWithZone:(struct _NSZone *)zone \ { \ return _instace; \ } #else // 不是ARC #define SingletonM(methodName) \ static id _instace = nil; \ + (id)allocWithZone:(struct _NSZone *)zone \ { \ if (_instace == nil) { \ static dispatch_once_t onceToken; \ dispatch_once(&onceToken, ^{ \ _instace = [super allocWithZone:zone]; \ }); \ } \ return _instace; \ } \ \ - (id)init \ { \ static dispatch_once_t onceToken; \ dispatch_once(&onceToken, ^{ \ _instace = [super init]; \ }); \ return _instace; \ } \ \ + (instancetype)shared##methodName \ { \ return [[self alloc] init]; \ } \ \ - (oneway void)release \ { \ \ } \ \ - (id)retain \ { \ return self; \ } \ \ - (NSUInteger)retainCount \ { \ return 1; \ } \ + (id)copyWithZone:(struct _NSZone *)zone \ { \ return _instace; \ } \ \ + (id)mutableCopyWithZone:(struct _NSZone *)zone \ { \ return _instace; \ } #endif //Singleton.h 其中这个单例模式先在UserInfoModel.h中

SingletonH(UserInfoModel);再在.m中

SingletonM(UserInfoModel);

初始化赋值

//UserInfoModel是个单例，此处初始化后，数据会一直随应用程序的启动而存在 UserInfoModel *userInfoModel = [UserInfoModel mj_objectWithKeyValues:responseData.responseObject[0]];//其中mj_objectWithKeyValues是mj方法的其中一种，详情请看本人另一篇文章介绍常用mj调用获取单例中的值，比如获取id

[UserInfoModel sharedUserInfoModel].ID