iOS常用宏定义

摘自我的一个开源的底层库 TLKit：https://github.com/tbl00c/TLKit

屏幕尺寸

#define     SCREEN_SIZE                 [UIScreen mainScreen].bounds.size
#define     SCREEN_WIDTH                SIZE_SCREEN.width
#define     SCREEN_HEIGHT               SIZE_SCREEN.height

常用控件高度

#define     STATUSBAR_HEIGHT            20.0f
#define     TABBAR_HEIGHT               49.0f
#define     NAVBAR_HEIGHT               44.0f
#define     SEARCHBAR_HEIGHT            44.0f
#define     BORDER_WIDTH_1PX            ([[UIScreen mainScreen] scale] > 0.0 ? 1.0 / [[UIScreen mainScreen] scale] : 1.0)

设备(屏幕)类型

#define     SCRREN_IPHONE4              (SCREEN_HEIGHT >= 480.0f)           // 320 * 480
#define     SCRREN_IPHONE5              (SCREEN_HEIGHT >= 568.0f)           // 320 * 568
#define     SCRREN_IPHONE6              (SCREEN_HEIGHT >= 667.0f)           // 375 * 667
#define     SCRREN_IPHONE6P             (SCREEN_HEIGHT >= 736.0f)           // 414 * 736

颜色

#define     RGBColor(r, g, b)           [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:1.0]
#define     RGBAColor(r, g, b, a)       [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:a]
#define     HexColor(color)             [UIColor colorWithRed:((float)((color & 0xFF0000) >> 16))/255.0 green:((float)((color & 0xFF00) >> 8))/255.0 blue:((float)(color & 0xFF))/255.0 alpha:1.0]
#define     HexAColor(color, a)         [UIColor colorWithRed:((float)((color & 0xFF0000) >> 16))/255.0 green:((float)((color & 0xFF00) >> 8))/255.0 blue:((float)(color & 0xFF))/255.0 alpha:a]

常用系统方法简写

/// 广播中心
#define     TLNotificationCenter        [NSNotificationCenter defaultCenter]
/// 用户自定义数据
#define     TLUserDefaults              [NSUserDefaults standardUserDefaults]
/// URL
#define     TLURL(urlString)            [NSURL URLWithString:urlString]
/// 图片
#define     TLImage(imageName)          (imageName ? [UIImage imageNamed:imageName] : nil)
#define     TLPNG(X)                    [[UIImage alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:X ofType:@"png"]]
#define     TLJPG(X)                    [[UIImage alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:X ofType:@"jpg"]]
/// 字符串
#define     TLNoNilString(str)          (str.length > 0 ? str : @"")
/// 方法名
#define     TLStirngFormSelector(s)     [[NSString alloc] initWithUTF8String:sel_getName(s)]
/// 国际化
#define     LOCSTR(str)                 NSLocalizedString(str, nil)

快捷方法

/// PushVC
#define     PushVC(vc)                  {\
            [vc setHidesBottomBarWhenPushed:YES];\
            [self.navigationController pushViewController:vc animated:YES];\
}

/// 方法交换
#define     TLExchangeMethod(oldSEL, newSEL) {\
            Method oldMethod = class_getInstanceMethod(self, oldSEL);\
            Method newMethod = class_getInstanceMethod(self, newSEL);\
            method_exchangeImplementations(oldMethod, newMethod);\
}\

多线程

#define     TLBackThread(block)         dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block)
#define     TLMainThread(block)         dispatch_async(dispatch_get_main_queue(), block)
#define     TLMainBarrier(block)        dispatch_barrier_async(dispatch_get_main_queue(), block)
#define     TLMainAfter(x, block)       dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(x * NSEC_PER_SEC)), dispatch_get_main_queue(), block);

循环引用消除

/**
 *  使用方法：
 *  @weakify(self);
 *  [self.request requestWithCompleteAction:^{
 *    @strongify(self);
 *    [self.tableView reloadData];
 *  }];
 */
#ifndef weakify
    #if DEBUG
        #if __has_feature(objc_arc)
            #define weakify(object)     autoreleasepool{} __weak __typeof__(object) weak##_##object = object;
        #else
            #define weakify(object)     autoreleasepool{} __block __typeof__(object) block##_##object = object;
        #endif
    #else
        #if __has_feature(objc_arc)
            #define weakify(object)     try{} @finally{} {} __weak __typeof__(object) weak##_##object = object;
        #else
            #define weakify(object)     try{} @finally{} {} __block __typeof__(object) block##_##object = object;
        #endif
    #endif
#endif

#ifndef strongify
    #if DEBUG
        #if __has_feature(objc_arc)
            #define strongify(object)   autoreleasepool{} __typeof__(object) object = weak##_##object;
        #else
            #define strongify(object)   autoreleasepool{} __typeof__(object) object = block##_##object;
        #endif
    #else
        #if __has_feature(objc_arc)
            #define strongify(object)   try{} @finally{} __typeof__(object) object = weak##_##object;
        #else
            #define strongify(object)   try{} @finally{} __typeof__(object) object = block##_##object;
        #endif
    #endif
#endif

// 方式二
#define     TLWeakSelf(type)            __weak typeof(type) weak##type = type;
#define     TLStrongSelf(type)          __strong typeof(type) strong##type = type;

系统版本

#define     SYSTEM_VERSION_EQUAL_TO(v)                  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define     SYSTEM_VERSION_GREATER_THAN(v)              ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define     SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define     SYSTEM_VERSION_LESS_THAN(v)                 ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define     SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

其他

// XCode
#define     XCODE_VERSION_8_LATER       __has_include()