单接口，多类 的架构设计

[cralison]

信息胜于事实

APP 架构设计有三种方式，我们以这个页面中间圆形按钮的页面跳转为例：

不管是什么设计，我们都会有一堆目标 ViewController 类：

1 、最原始的设计：

ViewController.m

#import "ALiLuXingViewController.h"
#import "ChongZhiViewController.h"
#import "FengLeiViewController.h"
#import "JuHuaSuanViewController.h"
#import "KouBeiWaiMaiViewController.h"
#import "LingJinBiViewController.h"
#import "TaoShengHuoViewController.h"
#import "TianMaoViewController.h"
#import "TianMaoGuoZhiViewController.h"
#import "TianMaoChaoShiViewController.h"

-(void )showALiLuXingViewController
{
    ALiLuXingViewController *aLiLuXingViewController = [[ALiLuXingViewController alloc]init];
    [self.navigationController pushViewController:aLiLuXingViewController animated:YES];
}

-(void )showChongZhiViewController
{
    ChongZhiViewController *chongZhiViewController = [[ChongZhiViewController alloc]init];
    [self.navigationController pushViewController:chongZhiViewController animated:YES];
}

-(void )showFengLeiViewController
{
    FengLeiViewController *fengLeiViewController = [[FengLeiViewController alloc]init];
    [self.navigationController pushViewController:fengLeiViewController animated:YES];
}

-(void )showJuHuaSuanViewController
{
    JuHuaSuanViewController *juHuaSuanViewController = [[JuHuaSuanViewController alloc]init];
    [self.navigationController pushViewController:juHuaSuanViewController animated:YES];
}

-(void )showKouBeiWaiMaiViewController
{
    KouBeiWaiMaiViewController *kouBeiWaiMaiViewController = [[KouBeiWaiMaiViewController alloc]init];
    [self.navigationController pushViewController:kouBeiWaiMaiViewController animated:YES];
}

-(void )showLingJinBiViewController
{
    LingJinBiViewController *lingJinBiViewController = [[LingJinBiViewController alloc]init];
    [self.navigationController pushViewController:lingJinBiViewController animated:YES];
}

-(void )showTaoShengHuoViewController
{
    TaoShengHuoViewController *taoShengHuoViewController = [[TaoShengHuoViewController alloc]init];
    [self.navigationController pushViewController:taoShengHuoViewController animated:YES];
}

-(void )showTianMaoViewController
{
    TianMaoViewController *tianMaoViewController = [[TianMaoViewController alloc]init];
    [self.navigationController pushViewController:tianMaoViewController animated:YES];
}

-(void )showTianMaoGuoZhiViewController
{
    TianMaoGuoZhiViewController *tianMaoGuoZhiViewController = [[TianMaoGuoZhiViewController alloc]init];
    [self.navigationController pushViewController:tianMaoGuoZhiViewController animated:YES];
}

-(void )showTianMaoChaoShiViewController
{
    TianMaoChaoShiViewController *tianMaoChaoShiViewController = [[TianMaoChaoShiViewController alloc]init];
    [self.navigationController pushViewController:tianMaoChaoShiViewController animated:YES];
}

2 ､单类，多接口 设计：

RouteInterface.h

#ifndef ViewControllerSplit_RouteInterface_h
#define ViewControllerSplit_RouteInterface_h
@protocol RouteInterface <NSObject>

@optional
-(void )showALiLuXingViewController;
-(void )showChongZhiViewController;
-(void )showFengLeiViewController;
-(void )showJuHuaSuanViewController;
-(void )showKouBeiWaiMaiViewController;
-(void )showLingJinBiViewController;
-(void )showTaoShengHuoViewController;
-(void )showTianMaoViewController;
-(void )showTianMaoGuoZhiViewController;
-(void )showTianMaoChaoShiViewController;
@end
#endif

ViewController.h

#import <UIKit/UIKit.h>
#import "RouteInterface.h"

@interface ViewController : UIViewController

@property (nonatomic, weak ) id<RouteInterface> routeHandle;
@end
ViewController.m

-(void )showALiLuXingViewController
{
    [self.routeHandle showALiLuXingViewController];
}

-(void )showChongZhiViewController
{
    [self.routeHandle showChongZhiViewController];
}

-(void )showFengLeiViewController
{
    [self.routeHandle showFengLeiViewController];
}

-(void )showJuHuaSuanViewController
{
    [self.routeHandle showJuHuaSuanViewController];
}

-(void )showKouBeiWaiMaiViewController
{
    [self.routeHandle showKouBeiWaiMaiViewController];
}

-(void )showLingJinBiViewController
{
    [self.routeHandle showLingJinBiViewController];
}

-(void )showTaoShengHuoViewController
{
    [self.routeHandle showTaoShengHuoViewController];
}

-(void )showTianMaoViewController
{
    [self.routeHandle showTianMaoViewController];
}

-(void )showTianMaoGuoZhiViewController
{
    [self.routeHandle showTianMaoGuoZhiViewController];
}

-(void )showTianMaoChaoShiViewController
{
    [self.routeHandle showTianMaoChaoShiViewController];
}

3 ､单接口，多类 设计：

RouteInterface.h

#ifndef ViewControllerSplit_RouteInterface_h
#define ViewControllerSplit_RouteInterface_h
@protocol RouteInterface <NSObject>

@optional
-(void )showViewController;
@end
#endif

ViewController.h

#import <UIKit/UIKit.h>
#import "RouteInterface.h"

@interface ViewController : UIViewController

@property (nonatomic, weak ) id<RouteInterface> aLiLuXingRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> chongZhiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> fengLeiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> juHuaSuanRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> kouBeiWaiMaiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> lingJinBiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> taoShengHuoRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> tianMaoRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> tianMaoGuoZhiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> tianMaoChaoShiRouteHandle;
@end

ViewController.m

-(void )showALiLuXingViewController
{
    [self.aLiLuXingRouteHandle showViewController];
}

-(void )showChongZhiViewController
{
    [self.chongZhiRouteHandle showViewController];
}

-(void )showFengLeiViewController
{
    [self.fengLeiRouteHandle showViewController];
}

-(void )showJuHuaSuanViewController
{
    [self.juHuaSuanRouteHandle showViewController];
}

-(void )showKouBeiWaiMaiViewController
{
    [self.kouBeiWaiMaiRouteHandle showViewController];
}

-(void )showLingJinBiViewController
{
    [self.lingJinBiRouteHandle showViewController];
}

-(void )showTaoShengHuoViewController
{
    [self.taoShengHuoRouteHandle showViewController];
}

-(void )showTianMaoViewController
{
    [self.tianMaoRouteHandle showViewController];
}

-(void )showTianMaoGuoZhiViewController
{
    [self.tianMaoGuoZhiRouteHandle showViewController];
}

-(void )showTianMaoChaoShiViewController
{
    [self.tianMaoChaoShiRouteHandle showViewController];
}

后记(下面以聊家常为主，没时间没兴趣的朋友请直接忽略)：

目前，我的行为准则只剩两个： 1 ､减小焦点； 2 ､叠加信息。据说，与王阳明的“心学”类似。

其中，叠加信息是根本，减小焦点是技巧。

任何事情的困难，都是信息不足造成的。

包括所谓的行动力不足，也可以通过增加信息来解决。比如，不断增加“行动有巨大好处，不行动将立马毁灭”这样的信息。

人对人的控制，也是从增加单方面信息下手的。只要不停地禁止其它声音，只允许单方面发声，即使把更多的自由发放给人们，人们还是会无可避免地按照控制者指定的方向前进。

奴役，从来都是通过信息管制来最终实现的。

而个人想自救，也只有从信息获取这里下手，才能根本解决。

但是，现在是一个信息爆炸的时代，全球每天有 36 万 7 千本书出版。你是不可能全方面地获取所有信息的。
为了从世界巨量信息中拯救自己，我们只能采取收缩策略：把自己的关注点尽可能地减少缩小。最好是只关注一个这个世界上除了你，没有人会关注的点上。

然后，收集所有关于这个足够小的点的信息，让这个单点全部信息塞进大脑，反复啄磨。如果在这个足够小的点上，你能更好地重组现有的信息，甚至创造新信息，就是对这个世界巨大的贡献。

分享一个 TED:
http://www.miaopai.com/show/OXEFXdUIU90yduUazs1gBA__.htm

[sablib]

什么鬼，这种东西有一个函数接受一个 key 作为参数去执行操作不就可以了，为什么要写那么多函数。。

[wzg1015]

这么多重复代码,你写着不难受,我看着还难受呢.变与不变都没分清