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在IOS开发中，有一些方法常常需要用的，但是有很长的方法名，这造成了代码长，写起来累，我们可以通过宏定义了解决这些问题比如说在代码布局的时候会遇上这样的问题，我们要获取上面一个的Y轴坐标，
有两种方法
通过坐标加上高度来计算
xx.frame.origin.y+xx.frame.size.height
还有一个略微简便的方法
CGRectGetMaxY(xx.frame)
都挺麻烦的，这时候就需要祭出宏定义来帮忙
#define MaxY(v) CGRectGetMaxY((v).frame) //纵坐标加上控件的高度
通过这样的定义，下次我们获取Y坐标的时候只要轻轻的写上MaxY(xx)即可，是不是简单很多呢？
类似的还有加载图片的方法
#define IMAGENAMED(NAME) [UIImage imageNamed:NAME]
这样就非常的方便，
下面是我整理的一个类
#ifndef Medical_Wisdom_UConstants_h
#define Medical_Wisdom_UConstants_h
/******************************************************/
/**** debug log **/ //NSLog输出信息
#ifdef DEBUG
#define DLog( s, ... ) NSLog( @"< %@:(%d) > %@", [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] )
#else
#define DLog( s, ... )
#endif
/*** DEBUG RELEASE */
#if DEBUG
#define MCRelease(x)
#else
#define MCRelease(x)
#endif
/***** release *****/
#define NILRelease [x release], x = nil
#pragma mark - Frame(宏 x,y,width,height)
#define MainScreenScale [[UIScreen mainScreen]scale] //屏幕的分辨率 当结果为1时，显示的是普通屏幕，结果为2时，显示的是Retian屏幕
// App Frame Height&Width
#define Application_Frame [[UIScreen mainScreen] applicationFrame] //除去信号区的屏幕的frame
#define APP_Frame_Height [[UIScreen mainScreen] applicationFrame].size.height //应用程序的屏幕高度
#define App_Frame_Width [[UIScreen mainScreen] applicationFrame].size.width //应用程序的屏幕宽度
/*** MainScreen Height Width */
#define Main_Screen_Width [[UIScreen mainScreen] bounds].size.width //主屏幕的宽度
#define Main_Screen_Height [[UIScreen mainScreen] bounds].size.height //主屏幕的高度
#define Main_Screen_Height_without_top [[UIScreen mainScreen] bounds].size.height-64 //主屏幕的高度
// View 坐标(x,y)和宽高(width,height)
#define X(v) (v).frame.origin.x
#define Y(v) (v).frame.origin.y
#define WIDTH(v) (v).frame.size.width
#define HEIGHT(v) (v).frame.size.height
#define MinX(v) CGRectGetMinX((v).frame) // 获得控件屏幕的x坐标
#define MinY(v) CGRectGetMinY((v).frame) // 获得控件屏幕的Y坐标
#define MidX(v) CGRectGetMidX((v).frame) //横坐标加上到控件中点坐标
#define MidY(v) CGRectGetMidY((v).frame) //纵坐标加上到控件中点坐标
#define MaxX(v) CGRectGetMaxX((v).frame) //横坐标加上控件的宽度
#define MaxY(v) CGRectGetMaxY((v).frame) //纵坐标加上控件的高度
#define CONTRLOS_FRAME(x,y,width,height) CGRectMake(x,y,width,height)
// 系统控件的默认高度
#define kStatusBarHeight (20.f)
#define kTopBarHeight (44.f)
#define kBottomBarHeight (49.f)
#define kCellDefaultHeight (44.f)
#define KstatusBarAndNavigation (64.0)
// 当控件为全屏时的横纵左边
#define kFrameX (0.0)
#define kFrameY (0.0)
#define kPhoneWithStatusNoPhone5Height (480.0)
#define kPhoneNoWithStatusNoPhone5Height (460.0)
#define kPhoneWithStatusPhone5Height (568.0)
#define kPhoneNoWithStatusPhone5Height (548.0)
#define kPadFrameWidth (768.0)
#define kPadWithStatusHeight (1024.0)
#define kPadNoWithStatusHeight (1004.0)
//中英状态下键盘的高度
#define kEnglishKeyboardHeight (216.f)
#define kChineseKeyboardHeight (252.f)
#pragma mark - Funtion Method (宏 方法)
//PNG JPG 图片路径
#define PNGPATH(NAME) [[NSBundle mainBundle] pathForResource:[NSString stringWithUTF8String:NAME] ofType:@"png"]
#define JPGPATH(NAME) [[NSBundle mainBundle] pathForResource:[NSString stringWithUTF8String:NAME] ofType:@"jpg"]
#define PATH(NAME,EXT) [[NSBundle mainBundle] pathForResource:(NAME) ofType:(EXT)]
//加载图片
#define PNGIMAGE(NAME) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:(NAME) ofType:@"png"]]
#define JPGIMAGE(NAME) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:(NAME) ofType:@"jpg"]]
#define IMAGE(NAME,EXT) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:(NAME) ofType:(EXT)]]
#define IMAGENAMED(NAME) [UIImage imageNamed:NAME]
//字体大小（常规/粗体）
#define BOLDSYSTEMFONT(FONTSIZE) [UIFont boldSystemFontOfSize:FONTSIZE]
#define SYSTEMFONT(FONTSIZE) [UIFont systemFontOfSize:FONTSIZE]
#define FONT(NAME,FONTSIZE) [UIFont fontWithName:(NAME) size:(FONTSIZE)]
//颜色（RGB）
#define RGBCOLOR(r,g,b) [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:1]
#define RGBACOLOR(r,g,b,a) [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:(a)]
#define BACKGROUND_COLOR [UIColor colorWithRed:22/255.0f green:29/255.0f blue:38/255.0f alpha:1]
//当前版本
#define FSystenVersion ([[[UIDevice currentDevice] systemVersion] floatValue])
#define DSystenVersion ([[[UIDevice currentDevice] systemVersion] doubleValue])
#define SSystemVersion ([[UIDevice currentDevice] systemVersion])
//当前语言
#define CURRENTLANGUAGE ([[NSLocale preferredLanguages] objectAtIndex:0])
//是否Retina屏
#define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) :NO)
//是否iPhone5
#define ISIPHONE [[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone
#define ISIPHONE5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)
#define ISIPHONE6 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(750, 1334), [[UIScreen mainScreen] currentMode].size) : NO)
#define ISIPHONE6P ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1242, 2208), [[UIScreen mainScreen] currentMode].size) : NO)
//是否是iPad
#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define YELLO_APP [UIColor colorWithRed:255/255 green:148.0/255 blue:28.0/255 alpha:1]
// UIView - viewWithTag 通过tag值获得子视图
#define VIEWWITHTAG(_OBJECT,_TAG) [_OBJECT viewWithTag : _TAG]
//应用程序的名字
#define AppDisplayName [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"]
//RGB颜色转换（16进制->10进制）
#define UIColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
//判断设备室真机还是模拟器
#if TARGET_OS_IPHONE
/** iPhone Device */
#endif
#if TARGET_IPHONE_SIMULATOR
/** iPhone Simulator */
#endif
#endif
这个在开发的时候可以略微的提高效率，OC的语法确实有点烦啊，赶快学swift吧，_
完整的代码可以在GitHub下载
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