🐝 BeeHive is a solution for iOS Application module programs, it absorbed the Spring Framework API service concept to avoid coupling between modules.
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📖 English Documentation | 📖 中文文档

0. Abstract

BeeHive is a modular program of implementation in iOS , it absorbed the Spring Framework API service concept to avoid to directly coupling between modules.

0.1 The basic architecture

We can get to know the architecture of BeeHive from this picture.

0.2 Core concepts

  • Module: Modules are separated by different function, every module can communicate with other one through their own services.
  • Service: Services are the interface of the specifically module.

0.3 Achieved characteristics

  • Plug-in module development of the operating framework
  • Module implementation and interface calls Separation
  • manage module life loop, extend the application of system events

0.4 Design

BeeHive bases on Spring Service concept, although you can make and implement specific interfaces decoupling between modules , but can not avoid interface class dependencies.

Why not use invoke and dynamic link library technology for decoupling interface , similar to Apache's DSO way?

Mainly on account of the difficulty and cost of learning to achieve , and dynamic invocation interface parameters can not be able to check phase change problems at compile time , dynamic programming techniques require a higher threshold requirement.

0.5 Project name origin

BeeHive inspired by the honeycomb. Honeycomb is the world's highly modular engineering structures, hexagonal design can bring unlimited expansion possibilities. So we used to do for this project BeeHive named.

1. Module life-cycle event

BeeHive's Each module will provide life-cycle events for the host environment and Each module necessary information exchange to BeeHive, you can observer the change in life run loop.

Events are divided into three types:

  • System Event
  • Universal Event
  • Business Custom Event

1.1 System Event

System events are usually Application life-cycle events , such as DidBecomeActive, WillEnterBackground etc. System Event basic workflow is as follows:

1.2 Universal Event

On the basis of system events on the extended general application events , such modSetup, modInit , etc. , may be used to code each plug-in module initialization settings

Extended common events are as follows :

1.3 Business Custom Event

If you feel the system event , the event is not sufficient to meet the general needs , we will simplify the event packaged into BHAppdelgate, you can extend your own event by inheritance BHAppdelegate, while BHContext Lane modulesByName access each module entry class , to increase the trigger point through.

2. Module registration

Registration module divided into two types , static registration and dynamic registration

2.1 Static registration

2.2 Dynamic registration

Use BH_EXPORT_MODULE macro module entry in the class implementation declares the class for the implementation class entry module

@implementation HomeModule


-(void)modInit:(BHContext *)context;


2.3 Asynchronous loading

If the module is set to export BH_EXPORT_MODULE (YES), it will initialize asynchronous execution module can be optimized before starting after the first screen shows the contents of the start time consuming

3. Programming

BHModuleProtocol provides various modules each module can hook functions , and logic for implementing the plug-in code, you can fine protocol in BHModuleProtocol.h.

3.1 Setting environment variables

By context.env we can judge our application environment state to decide how we configure our application

-(void)modSetup:(BHContext *)context
	switch (context.env) {
		case BHEnvironmentDev:
		case BHEnvironmentProd:

3.2 Module Init

If the module there is need to start initialization logic can modInit in the preparation of , for example, the module can register an external module interface to access the Service

-(void)modInit:(BHContext *)context
	[[BeeHive shareInstance] registerService:@protocol(UserTrackServiceProtocol) service:[BHUserTrackViewController class]];

3.3 Event processing systems

Event system will be passed to each module, so that each module to decide to write business logic.

-(void)modQuickAction:(BHContext *)context
	[self process:context.shortcutItem handler:context.scompletionHandler];

3.4 Inter-modal calls

Event prepared by treating the various business modules can plug-in programming , it has no dependencies between the various business modules , through the interaction between the core and the event module, to achieve a plug-in isolation . But sometimes we need to call each other between modules some collaborative features to completion.

Usually in the form of three types to access service:

  1. by interface(like Spring)
  2. by Export Method(like PHP/ReactNative extension)
  3. by URL Route pattern(like interaction between iPhone apps)

Interface type of service access can take the advantages of compile-time checking is found to change the interface , so that timely correction interface issues . The disadvantage is the need to rely on the interface definition header file by the module increases the more the maintenance interface definition there is a certain amount of work .

3.4.1 Declare service interface

Case thought HomeServiceProtocol:

@protocol HomeServiceProtocol <NSObject, BHServiceProtocol>

-(void)registerViewController:(UIViewController *)vc title:(NSString *)title iconName:(NSString *)iconName;


3.4.2 Register Service

There are two ways to register ViewController Service.

API registration

[[BeeHive shareInstance] registerService:@protocol(HomeServiceProtocol) service:[BHViewController class]];

BHService.plist registration

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "">
<plist version="1.0">

3.4.3 Service invocation

#import "BHService.h"

id< HomeServiceProtocol > homeVc = [[BeeHive shareInstance] createService:@protocol(HomeServiceProtocol)];

// use homeVc do invocation

3.5 Singleton or several instance

For some scenes , we visit each declared as service objects , objects can hope to retain some of the state , then we need to declare this service object is a singleton object .

We only need to implement the function declaration in the event service objects

-(BOOL) singleton
	return YES;

The object was acquired by createService singleton object , if the function returns to achieve the above is NO, createService returns multiple cases

id< HomeServiceProtocol > homeVc = [[BeeHive shareInstance] createService:@protocol(HomeServiceProtocol)];

3.6 Global Context

Initial setup application project information , and share information across applications among modules

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
	[BHContext shareInstance].env = BHEnvironmentDev;

	[BHContext shareInstance].application = application;
	[BHContext shareInstance].launchOptions = launchOptions;

	[BHContext shareInstance].moduleConfigName = @"BeeHive.bundle/CustomModulePlist";
	[BHContext shareInstance].serviceConfigName =  @"BeeHive.bundle/CustomServicePlist";

	[BHContext shareInstance].appkey  = xxxxxx;
	[BHContext shareInstance].Mtopkey  = xxxxx;

	[[BeeHive shareInstance] setContext:[BHContext shareInstance]];

	[super application:application didFinishLaunchingWithOptions:launchOptions];

	id<HomeServiceProtocol> homeVc = [[BeeHive shareInstance] createService:@protocol(HomeServiceProtocol)];

	if ([homeVc isKindOfClass:[UIViewController class]]) {
		UINavigationController *navCtrl = [[UINavigationController alloc] initWithRootViewController:(UIViewController*)homeVc];

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

		[self.window makeKeyAndVisible];

	return YES;

4. Integration


pod "BeeHive", '1.1.1'

5. Author

  • 一渡 shijie.qinsj<at>alibaba-inc<dot>com
  • 达兹 dazi.dp<at>alibaba-inc<dot>com

6. WeChat Group

Because the WeChat Group had reached to the max number of people , you can join us by search dolphinux in WeChat.

7. License

BeeHive is available under the GPL license. See the LICENSE file for more info.

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