iOS開發常用宏

• 尺寸相關

//狀態欄高度
#define kStatusBarHeight [[UIApplication sharedApplication] statusBarFrame].size.height

• 顏色相關

//十六進制
#define UIColorFromHexadecimalRGB(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]
#define UIColorFromHexadecimalRGBA(rgbValue,a) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:a]

//十進制
#define UIColorFromRGB(r,g,b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
#define UIColorFromRGBA(r,g,b,a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:a]

• 開發環境宏

#if DEBUG
    //只在測試環境下執行
#endif
#if RELEASE
    //只在線上環境下執行
#endif

• 調試宏 （輸出方法名 行號 內容）

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

• 線程

//主線程調用方法
#define CallForMainQueue(__function__)\
if([NSThread isMainThread]){\
__function__;\
}\
else\
{\
dispatch_sync(dispatch_get_main_queue(),^{\
__function__;\
});\
}\

//全局隊列異步調用方法
#define CallForAsyncQueue(__function__)(\
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),^{\
__function__;\
})\
)

• 編譯版本號

#define kShortVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]

• 強弱應用

#define kWeak(obj)   __weak typeof(obj) weak##obj = obj
#define kStrong(obj) __strong typeof(obj) strong##obj = weak##obj;

• 沙盒Document目錄

#define kDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
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