世上最無奈之事鸣峭，即便刀劍在手前普，或者天下無敵肚邢，仍是有救不了最想要救的人；
——清香白蓮.素還真
做開發(fā)不久拭卿，經(jīng)常會(huì)上網(wǎng)找一些資料骡湖，簡書上的內(nèi)容是看著比較順眼的了；特此也想把平時(shí)工作中遇到的問題總結(jié)記錄下來峻厚，希望自己可以養(yǎng)成一個(gè)好習(xí)慣响蕴！
就從常用的宏定義開始吧！
1.屏幕寬高
#define kScreenWidth [UIScreen mainScreen].bounds.size.width
#define kScreenHeight [UIScreen mainScreen].bounds.size.height
2.手機(jī)型號
#define kISiPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define kScreenMaxLength (MAX(kScreenWidth, kScreenHeight))
#define kScreenMinLength (MIN(kScreenWidth, kScreenHeight))
#define kISiPhone5 (kISiPhone && kScreenMaxLength == 568.0)
#define kISiPhone6 (kISiPhone && kScreenMaxLength == 667.0)
#define kISiPhone6P (kISiPhone && kScreenMaxLength == 736.0)
#define kISiPhoneX (kISiPhone && kScreenMaxLength == 812.0)
#define kISiPhoneXr (kISiPhone && kScreenMaxLength == 896.0)
#define kISiPhoneXX (kISiPhone && kScreenMaxLength > 811.0)
#define IOS8 ([[[UIDevice currentDevice] systemVersion] doubleValue] >= 8.0)
3.適配相關(guān)
//6為標(biāo)準(zhǔn)適配的,如果需要其他標(biāo)準(zhǔn)可以修改
#define kScale_W(w) ((kScreenWidth)/375) * (w)
#define kScale_H(h) (kScreenHeight/667) * (h)
//字體適配
#define kScaleFont(fontSize) [UIFont systemFontOfSize: fontSize*kScreenWidth/375]
//狀態(tài)欄高度
#define kStatusBarHeight [[UIApplication sharedApplication] statusBarFrame].size.height
//狀態(tài)欄高度
#define StatusBarHeight (kISiPhoneXX?44:20)
//標(biāo)簽欄高度
#define kTabBarHeight (StatusBarHeight > 20 ? 83 : 49)
//導(dǎo)航欄高度
#define kNavBarHeight (StatusBarHeight + 44)
//安全區(qū)高度
#define kSafeAreaBottom (kISiPhoneXX ? 34 : 0)
3.字體樣式
#define kBoldFont(x) [UIFont boldSystemFontOfSize:x]
#define kFont(x) [UIFont systemFontOfSize:x]
#define kNameFont(x) [UIFont fontWithName:@"Heiti SC" size:x]
4.顏色設(shè)置
//RGB格式
#define kRGB(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
//RGBA格式
#define kRGBA(r, g, b, a) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:a]
//隨機(jī)顏色
#define kRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0]
5.系統(tǒng)對象
//APP對象 （單例對象）
#define kApplication [UIApplication sharedApplication]
//主窗口 （keyWindow）
#define kKeyWindow [UIApplication sharedApplication].keyWindow
//NSUserDefaults實(shí)例化
#define kUserDefaults [NSUserDefaults standardUserDefaults]
//通知中心 （單例對象）
#define kNotificationCenter [NSNotificationCenter defaultCenter]
//發(fā)送通知
#define KPostNotification(name,obj,info) [[NSNotificationCenter defaultCenter]postNotificationName:name object:obj userInfo:info]
//APP版本號
#define kVersion [[[NSBundle mainBundle] infoDictionary] valueForKey:@"CFBundleShortVersionString"]
//系統(tǒng)版本號
#define kSystemVersion [[UIDevice currentDevice] systemVersion]
6.簡單調(diào)用
//加載圖片
#define kGetImage(imageName) [UIImage imageNamed:[NSString stringWithFormat:@"%@",imageName]]
//弱引用
#define kWeakSelf(type) __weak typeof(type) weak##type = type
//強(qiáng)引用
#define kStrongSelf(type) __strong typeof(type) type = weak##type
//安全調(diào)用Block
#define kSafeBlock(blockName,...) ({!blockName ? nil : blockName(__VA_ARGS__);})
//加載xib
#define kLoadNib(nibName) [UINib nibWithNibName:nibName bundle:[NSBundle mainBundle]]
//字符串拼接
#define kStringFormat(format,...) [NSString stringWithFormat:format,##__VA_ARGS__]
//屬性快速聲明（建議使用代碼塊）
#define kPropertyString(name) @property(nonatomic,copy)NSString *name
#define kPropertyStrong(type,name) @property(nonatomic,strong)type *name
#define kPropertyAssign(name) @property(nonatomic,assign)NSInteger name
// View 圓角和加邊框
#define kViewBorderRadius(View, Radius, Width, Color)\
\
[View.layer setCornerRadius:(Radius)];\
[View.layer setMasksToBounds:YES];\
[View.layer setBorderWidth:(Width)];\
[View.layer setBorderColor:[Color CGColor]]
// View 圓角
#define kViewRadius(View, Radius)\
\
[View.layer setCornerRadius:(Radius)];\
[View.layer setMasksToBounds:YES]
//永久存儲(chǔ)對象
#define kSetUserDefaults(object, key) \
({ \
NSUserDefaults * defaults = [NSUserDefaults standardUserDefaults]; \
[defaults setObject:object forKey:key]; \
[defaults synchronize]; \
})
//獲取對象
#define kGetUserDefaults(key) [[NSUserDefaults standardUserDefaults] objectForKey:key]
//刪除某一個(gè)對象
#define kRemoveUserDefaults(key) \
({ \
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; \
[defaults removeObjectForKey:_key]; \
[defaults synchronize]; \
})
//清除 NSUserDefaults 保存的所有數(shù)據(jù)
#define kRemoveAllUserDefaults [[NSUserDefaults standardUserDefaults] removePersistentDomainForName:[[NSBundle mainBundle] bundleIdentifier]]
7. 獲取時(shí)間
//獲得當(dāng)前的年份
#define kCurrentYear [[NSCalendar currentCalendar] component:NSCalendarUnitYear fromDate:[NSDate date]]
//獲得當(dāng)前的月份
#define kCurrentMonth [[NSCalendar currentCalendar] component:NSCalendarUnitMonth fromDate:[NSDate date]]
//獲得當(dāng)前的日期
#define kCurrentDay [[NSCalendar currentCalendar] component:NSCalendarUnitDay fromDate:[NSDate date]]
//獲得當(dāng)前的小時(shí)
#define kCurrentHour [[NSCalendar currentCalendar] component:NSCalendarUnitHour fromDate:[NSDate date]]
//獲得當(dāng)前的分
#define kCurrentMin [[NSCalendar currentCalendar] component:NSCalendarUnitMinute fromDate:[NSDate date]]
//獲得當(dāng)前的秒
#define kCurrentSec [[NSCalendar currentCalendar] component:NSCalendarUnitSecond fromDate:[NSDate date]]
8. 沙盒路徑
//獲取沙盒 temp
#define kPathTemp NSTemporaryDirectory()
//獲取沙盒 Document
#define kPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
//獲取沙盒 Cache
#define kPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]
//Library/Caches 文件路徑
#define kFilePath ([[NSFileManager defaultManager] URLForDirectory:NSCachesDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:YES error:nil])
9. 線程
//GCD - 在Main線程上運(yùn)行
#define kMainThread(mainQueueBlock) dispatch_async(dispatch_get_main_queue(), mainQueueBlock);
//GCD - 開啟異步線程
#define kGlobalThread(globalQueueBlock) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), globalQueueBlocl);
10.判空
//字符串是否為空
#define kISNullString(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO )
//數(shù)組是否為空
#define kISNullArray(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0 ||[array isEqual:[NSNull null]])
//字典是否為空
#define kISNullDict(dic) (dic == nil || [dic isKindOfClass:[NSNull class]] || dic.allKeys == 0 || [dic isEqual:[NSNull null]])
//是否是空對象
#define kISNullObject(_object) (_object == nil \
|| [_object isKindOfClass:[NSNull class]] \
|| ([_object respondsToSelector:@selector(length)] && [(NSData *)_object length] == 0) \
|| ([_object respondsToSelector:@selector(count)] && [(NSArray *)_object count] == 0))
//判斷對象是否為空,為空則返回默認(rèn)值
#define kGetNullDefaultObj(_value,_default) ([_value isKindOfClass:[NSNull class]] || !_value || _value == nil || [_value isEqualToString:@"(null)"] || [_value isEqualToString:@"<null>"] || [_value isEqualToString:@""] || [_value length] == 0)?_default:_value
11.自定義Log
#ifdef DEBUG
#define NSLog(FORMAT, ...) fprintf(stderr,"%s:%d\t%s\n",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String], __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);
#else
#define NSLog(FORMAT, ...) nil
#endif
非常優(yōu)秀的簡書內(nèi)容
http://www.reibang.com/p/56b1a8bd092c
http://www.reibang.com/p/6da4155e09ec
