[ 夜间模式 ] NightVersion

DKNightVersion框架、重写管理类 & 控件的分类！--可重写
{ 使用GCD、runtime、delegate等 & 工具类的创建 }

 

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1、管理类的头文件 NightVersionManager.h

 

定义宏，通过RGB获取颜色！

#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]

定义头文件.h

typedef enum : NSUInteger {

   DKThemeVersionNormal,

   DKThemeVersionNight,

} DKThemeVersion;



extern NSString *const DKNightVersionNightFallingNotification;

extern NSString *const DKNightVersionDawnComingNotification;



extern CGFloat const DKNightVersionAnimationDuration;



@interface DKNightVersionManager : NSObject

+ (DKThemeVersion)currentThemeVersion;

+ (void)nightFalling;

+ (void)dawnComing;

+ (BOOL)useDefaultNightColor;

+ (void)setUseDefaultNightColor:(BOOL)use;

 

2、核心代码 NightVersionManager.m

2.1 单例、保证工具类对象，只被分配一次内存

+ (DKNightVersionManager *)sharedNightVersionManager {

   static dispatch_once_t once;

   static DKNightVersionManager *instance;

   dispatch_once(&once, ^{

       instance = [self new];

       instance.useDefaultNightColor = YES;

   });

   return instance;

}

 

2.2 设置主题的版本

- (void)setThemeVersion:(DKThemeVersion)themeVersion {

   if (_themeVersion == themeVersion) {

       // if type does not change, don't execute code below to enhance performance.

       return;

   }

   _themeVersion = themeVersion;

   [self changeColor:[[UIApplication sharedApplication].delegate.window.subviews firstObject]];

}

 

2.3 改变颜色－－委托

- (void)changeColor:(id <DKNightVersionSwichColorProtocol>)object {

   if ([object respondsToSelector:@selector(changeColor)]) {

       [object changeColor];

   }

   if ([object respondsToSelector:@selector(subviews)]) {

       if (![object subviews]) {

           // Basic case, do nothing.

           return;

       } else {

           for (id subview in [object subviews]) {

               // recursice darken all the subviews of current view.

               [self changeColor:subview];

               if ([subview respondsToSelector:@selector(changeColor)]) {

                   [subview changeColor];

               }

           }

       }

   }

}

 

2.4 设置模式的颜色

+ (BOOL)useDefaultNightColor {

   return self.sharedNightVersionManager.useDefaultNightColor;

}



+ (void)setUseDefaultNightColor:(BOOL)use {

   [self.sharedNightVersionManager setUseDefaultNightColor:use];

}

 

3、控件分类（UIButton、UILabel、UIScrollView等）

3.1 UIButton+NightVersion.m

- (void)changeColor {

   

   [UIView animateWithDuration:DKNightVersionAnimationDuration animations:^{

       

       [self setTitleColor:([DKNightVersionManager currentThemeVersion] == DKThemeVersionNight) ? self.nightTitleColor : self.normalTitleColor forState:UIControlStateNormal];

       

       [self setBackgroundColor:([DKNightVersionManager currentThemeVersion] == DKThemeVersionNight) ? self.nightBackgroundColor : self.normalBackgroundColor];

       

       [self setTintColor:([DKNightVersionManager currentThemeVersion] == DKThemeVersionNight) ? self.nightTintColor : self.normalTintColor];

       

   }];

}

 

3.2 UIButton+TitleColor.m

> 加载时GCD，保证线程安全。

> runtime运行时，SEL & Method的使用。

+ (void)load {

   static dispatch_once_t onceToken;                                              

   dispatch_once(&onceToken, ^{                                                   

       Class class = [self class];                                                

       SEL originalSelector = @selector(setTitleColor:forState:);                                  

       SEL swizzledSelector = @selector(hook_setTitleColor:forState:);                                 

       Method originalMethod = class_getInstanceMethod(class, originalSelector);  

       Method swizzledMethod = class_getInstanceMethod(class, swizzledSelector);  

       BOOL didAddMethod =                                                        

       class_addMethod(class, originalSelector, method_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod));                   

       if (didAddMethod){

           class_replaceMethod(class, swizzledSelector, method_getImplementation(originalMethod), method_getTypeEncoding(originalMethod));           

       } else {                                                                   

           method_exchangeImplementations(originalMethod, swizzledMethod);        

       }

   });

}

 

设置默认的标题颜色

- (UIColor *)defaultNightTitleColor {

   if ([self isMemberOfClass:[UIButton class]]) { 

       return UIColorFromRGB(0x5F80AC);

   } else {

       UIColor *resultColor = self.normalTitleColor ?: [UIColor clearColor];

       return resultColor;

   }

}

 

4、Test测试

4.1 AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

   self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

   // Override point for customization after application launch.

   self.window.backgroundColor = [UIColor whiteColor];

   [self.window makeKeyAndVisible];

   UINavigationController *navigation = [[UINavigationController alloc] initWithRootViewController:[[RootViewController alloc] init]];

   self.window.rootViewController = navigation;

   return YES;

}

 

4.2 RootViewController.m

- (void)nightFalls {

   [DKNightVersionManager nightFalling];

}



- (void)dawnComes {

   [DKNightVersionManager dawnComing];

}



- (void)push {

   [self.navigationController pushViewController:[[SuccViewController alloc] init] animated:YES];

}

 

4.3 SuccViewController.m

- (void)viewDidLoad {

   [super viewDidLoad];

   self.view.backgroundColor = [UIColor whiteColor];

   self.view.nightBackgroundColor = [UIColor colorWithRed:0.141 green:0.145 blue:0.153 alpha:1.0];

}

 

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PS：

［ 每日一句 ］

" Smiling is the best reaction in all situations. "

 

［开源框架］

http://www.umeng.com/

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