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. "
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http://www.umeng.com/
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