iOS 组件化方案

一个 APP 有多个模块，模块之间会通信，互相调用. 一个功能复杂的界面难免会在里边引入很多其他类的头文件, 使得代码耦合度很高, 为了解决这个问题需要引入组件化方案

首先需要一个Mediator类

//Mediator.h 类

@interfaceMediator :NSObject

+ (Mediator*)shareInstance;

- (id)performTarget:(NSString*)target action:(NSString*)action param:(NSDictionary*)parame;

@end

#import "Mediator.h"

@implementation Mediator

+ (Mediator*)shareInstance {

    staticMediator*s =nil;

    staticdispatch_once_tonceToken;

    dispatch_once(&onceToken, ^{

        s = [[Mediatoralloc]init];

    });

    returns;

}

//抽离出来所有的target以及action

- (id)performTarget:(NSString*)target action:(NSString*)action param:(NSDictionary*)parame {

    Class cls =NSClassFromString(target);

    idtarget Obj = [[cls alloc]init];

    SEL actionSEL = NSSelectorFromString([NSString stringWithFormat:@"action_%@", action]);

    if([targetObj respondsToSelector: actionSEL]) {

#pragma clang diagnostic push

#pragma clang diagnostic ignored"-Warc-performSelector-leaks"

        return [targetObj performSelector:actionSEL withObject:parame];

#pragma clang diagnostic pop

    }

    return nil;

}

对于每个模块都需要有自己的mediator, 所以对于每个模块都写一个分类

#import "Mediator.h"

@interfaceMediator (ViewControllerAction)

- (UIViewController*)Mediator_viewController1With:(NSDictionary*)parame;

- (UIViewController*)Mediator_viewController2With:(NSDictionary*)parame;

@end

#import "Mediator+ViewControllerAction.h"

@implementationMediator (ViewControllerAction)

- (UIViewController*)Mediator_viewController1With:(NSDictionary*)parame {

    UIViewController *VC = [self performTarget:@"ViewController1" action:@"viewcontroller1WithId:" param:parame];

    returnVC;

}

- (UIViewController*)Mediator_viewController2With:(NSDictionary*)parame {

    UIViewController *VC = [self performTarget:@"ViewController2" action:@"viewcontroller2WithId:" param:parame];

    returnVC;

}

@end

在需要被创建的类里边写各自需要的代码逻辑  如下

@implementationViewController1

- (UIViewController*)action_viewcontroller1WithId:(NSMutableDictionary*)param  {

    ViewController1 *VC = [[ViewController1 alloc] init];

    VC.ID= param[@"id"];

    returnVC;

}

在需要被创建的类里边写各自需要的代码逻辑  如下

@implementationViewController2

- (UIViewController*)action_viewcontroller2WithId:(NSMutableDictionary*)param  {

    ViewController2 *VC = [[ViewController2 alloc] init];

    VC.ID= param[@"id"];

    returnVC;

}

最后在需要创建的地方调用就可以了  如:

UIViewCOntroller *VC =  [[Mediator shareInstance] Mediator_viewController1With:{@"id":@"1"}];

这样就拿到了需要创建的对象