ZIKRouter
An interface-oriented router for managing modules and injecting dependencies with protocol.
The view router can perform all navigation types in UIKit / AppKit through one method.
The service router can discover and prepare corresponding module with its protocol.
一个用于模块间解耦和通信，基于接口进行模块管理和依赖注入的组件化路由工具。用多种方式最大程度地发挥编译检查的功能。
通过 protocol 寻找对应的模块，并用 protocol 进行依赖注入和模块通信。
Service Router 可以管理任意自定义模块。View Router 进一步封装了界面跳转。
中文文档
Features
- Swift and Objective-C support
- iOS, macOS and tvOS support
- File template for quickly creating router
- Routing for UIViewController / NSViewController, UIView / NSView and any class
- Dependency injection, including dynamic injection and static injection
- Declaration of routable protocol for compile-time checking. Using undeclared protocol will bring compiler error. This is one of the most powerful feature
- Module matching with its protocol
- URL routing support
- Configure the module with its protocol rather than a parameter dictionary
- Required protocol and provided protocol for making thorough decouple
- Adapter for decoupling modules and add compatible interfaces
- Storyboard support. Views from a segue can be auto prepared
- Encapsulation for all transition methods and unwind methods in UIKit / AppKit, and also custom transition
- Error checking for view transition
- AOP for view transition
- Memory leak detection
- Custom events handling
- Auto registration
- Highly scalable
Quick Start Guide
Documentation
Design Idea
Basics
- Router Implementation
- Module Registration
- Routable Declaration
- Type Checking
- Perform Route
- Remove Route
- Transfer Parameters with Custom Configuration
Advanced Features
- Error Handle
- Storyboard and Auto Create
- AOP
- Dependency Injection
- Circular Dependency
- Module Adapter
- Unit Test
Requirements
- iOS 7.0+
- Swift 3.2+
- Xcode 9.0+
Installation
Cocoapods
Add this to your Podfile.
For Objective-C project:
pod 'ZIKRouter', '>= 1.1.1'
# or only use ServiceRouter
pod 'ZIKRouter/ServiceRouter' , '>=1.1.1'
For Swift project:
pod 'ZRouter', '>= 1.1.1'
# or only use ServiceRouter
pod 'ZRouter/ServiceRouter' , '>=1.1.1'
Carthage
Add this to your Cartfile:
github "Zuikyo/ZIKRouter" >= 1.1.1
Build frameworks:
carthage update
Build DEBUG version to enable route checking:
carthage update --configuration Debug
Remember to use release version in production environment.
For Objective-C project, use ZIKRouter.framework. For Swift project, use ZRouter.framework.
Getting Started
This is the demo view controller and protocol：
///Editor view's interface
protocol EditorViewInput: class {
weak var delegate: EditorDelegate? { get set }
func constructForCreatingNewNote()
}
///Editor view controller
class NoteEditorViewController: UIViewController, EditorViewInput {
...
}
Objective-C Sample
///editor view's interface
@protocol EditorViewInput
@property (
nonatomic,
weak)
id
delegate;
- (
void)
constructForCreatingNewNote;
@end
///Editor view controller
@interface NoteEditorViewController: UIViewController
@end
@implementation
NoteEditorViewController
@end
There're 2 steps to create route for your module.
1. Create Router
To make your class become modular, you need to create router for your module. You don't need to modify the module's code. That will reduce the cost for refactoring existing modules.
1.1 Router Subclass
Create router subclass for your module:
import ZIKRouter.Internal
import ZRouter
class NoteEditorViewRouter: ZIKViewRouter
Objective-C Sample
//NoteEditorViewRouter.h
@import ZIKRouter;
@interface NoteEditorViewRouter : ZIKViewRouter
@end
//NoteEditorViewRouter.m
@import ZIKRouter.Internal;
@implementation NoteEditorViewRouter
+ (void)registerRoutableDestination {
// Register class with this router. A router can register multi views, and a view can be registered with multi routers
[self registerView:[NoteEditorViewController class]];
// Register protocol. Then we can fetch this router with the protocol
[self registerViewProtocol:ZIKRoutable(EditorViewInput)];
}
// Return the destination module
- (NoteEditorViewController *)destinationWithConfiguration:(ZIKViewRouteConfiguration *)configuration {
// In configuration, you can get parameters from the caller for creating the instance
NoteEditorViewController *destination = ... // instantiate your view controller
return destination;
}
- (void)prepareDestination:(NoteEditorViewController *)destination configuration:(ZIKViewRouteConfiguration *)configuration {
// Inject dependencies to destination
}
@end
Each router can control their own routing, such as using different custom transition. And the router can be very easy to add additional features.
Read the documentation for more details and more methods to override.
1.2 Simple Router
If your module is very simple and don't need a router subclass, you can just register the class in a simpler way:
ZIKAnyViewRouter.register(RoutableView<EditorViewInput>(), forMakingView: NoteEditorViewController.self)
Objective-C Sample
[ZIKViewRouter registerViewProtocol:ZIKRoutable(EditorViewInput) forMakingView:[NoteEditorViewController class]];
or with custom creating block:
ZIKAnyViewRouter.register(RoutableView<EditorViewInput>(),
forMakingView: NoteEditorViewController.self) { (config, router) -> EditorViewInput? in
let destination: NoteEditorViewController? = ... // instantiate your view controller
return destination;
}
Objective-C Sample
[ZIKViewRouter
registerViewProtocol:ZIKRoutable(EditorViewInput)
forMakingView:[NoteEditorViewController class]
making:^id _Nullable(ZIKViewRouteConfiguration *config, ZIKViewRouter *router) {
NoteEditorViewController *destination = ... // instantiate your view controller
return destination;
}];
or with custom factory function:
function makeEditorViewController(config: ViewRouteConfig) -> EditorViewInput? {
let destination: NoteEditorViewController? = ... // instantiate your view controller
return destination;
}
ZIKAnyViewRouter.register(RoutableView<EditorViewInput>(),
forMakingView: NoteEditorViewController.self, making: makeEditorViewController)
Objective-C Sample
id
makeEditorViewController(ZIKViewRouteConfiguration *config) {
NoteEditorViewController *destination = ...
// instantiate your view controller
return destination;
}
[ZIKViewRouter
registerViewProtocol:
ZIKRoutable(EditorViewInput)
forMakingView:[NoteEditorViewController
class]
factory:makeEditorViewController];
2. Declare Routable Type
The declaration is for checking routes at compile time, and supporting storyboard.
// Declare NoteEditorViewController is routable
// This means there is a router for NoteEditorViewController
extension NoteEditorViewController: ZIKRoutableView {
}
// Declare EditorViewInput is routable
// This means you can use EditorViewInput to fetch router
extension RoutableView where Protocol == EditorViewInput {
init() { self.init(declaredProtocol: Protocol.self) }
}
Objective-C Sample
// Declare NoteEditorViewController is routable
// This means there is a router for NoteEditorViewController
DeclareRoutableView(NoteEditorViewController, NoteEditorViewRouter)
// If the protocol inherits from ZIKViewRoutable, it's routable
// This means you can use EditorViewInput to fetch router
@protocol EditorViewInput
@property (nonatomic, weak) id
delegate;
- (
void)constructForCreatingNewNote;
@end
If you use an undeclared protocol for routing, there will be compile time error. So it's much safer and easier to manage protocols and to know which protocols are routable.
Unroutable error in Swift:
Unroutable error in Objective-C:
Now you can get and show NoteEditorViewController with router.
View Router
Transition directly
Transition to editor view directly:
class TestViewController: UIViewController {
// Transition to editor view directly
func showEditorDirectly() {
Router.perform(to: RoutableView<EditorViewInput>(), path: .push(from: self))
}
}
Objective-C Sample
@implementation TestViewController
- (void)showEditorDirectly {
// Transition to editor view directly
[ZIKRouterToView(EditorViewInput) performPath:ZIKViewRoutePath.pushFrom(self)];
}
@end
You can change transition type with ViewRoutePath:
enum ViewRoutePath {
case push(from: UIViewController)
case presentModally(from: UIViewController)
case presentAsPopover(from: UIViewController, configure: ZIKViewRoutePopoverConfigure)
case performSegue(from: UIViewController, identifier: String, sender: Any?)
case show(from: UIViewController)
case showDetail(from: UIViewController)
case addAsChildViewController(from: UIViewController, addingChildViewHandler: (UIViewController, @escaping () -> Void) -> Void)
case addAsSubview(from: UIView)
case custom(from: ZIKViewRouteSource?)
case makeDestination
case extensible(path: ZIKViewRoutePath)
}
Encapsulating view transition can hide the UIKit detail, then you can perform route outside the view layer (presenter, view model, interactor, service) and be cross-platform.
Prepare before Transition
Prepare it before transition to editor view:
class TestViewController: UIViewController {
// Transition to editor view, and prepare the destination with EditorViewInput
func showEditor() {
Router.perform(
to: RoutableView<EditorViewInput>(),
path: .push(from: self),
configuring: { (config, _) in
// Route config
// Prepare the destination before transition
config.prepareDestination = { [weak self] destination in
//destination is inferred as EditorViewInput
destination.delegate = self
destination.constructForCreatingNewNote()
}
config.successHandler = { destination in
// Transition succeed
}
config.errorHandler = { (action, error) in
// Transition failed
}
})
}
}
Objective-C Sample
@implementation TestViewController
- (void)showEditor {
// Transition to editor view, and prepare the destination with EditorViewInput
[ZIKRouterToView(EditorViewInput)
performPath:ZIKViewRoutePath.pushFrom(self)
configuring:^(ZIKViewRouteConfig *config) {
// Route config
// Prepare the destination before transition
config.prepareDestination = ^(id
destination) {
destination.
delegate = self;
[destination
constructForCreatingNewNote];
};
config.
successHandler = ^(
id
destination) {
// Transition is completed
};
config.
errorHandler = ^(ZIKRouteAction routeAction,
NSError * error) {
// Transition failed
};
}];
}
@end
For more detail, read Perform Route.
Make Destination
If you don't want to show a view, but only need to get instance of the module, you can use makeDestination:
// destination is inferred as EditorViewInput
let destination = Router.makeDestination(to: RoutableView<EditorViewInput>())
Objective-C Sample
id
destination = [
ZIKRouterToView(EditorViewInput)
makeDestination];
Required Parameter and Special Parameter
Some parameters can't be delivered though destination's protocol:
-
the destination class uses custom initializers to create instance, router needs to get required parameter from the caller
-
the module contains multi components, and you need to pass parameters to those components. Those parameters do not belong to the destination, so they should not exist in destination's protocol
You can use module config protocol and a custom configuration to transfer parameters.
Instead of EditorViewInput, we use another routable protocol EditorViewModuleInput as config protocol for routing:
// In general, a module config protocol only contains `makeDestinationWith`, for declaring parameters and destination type. You can also add other properties or methods
protocol EditorViewModuleInput: class {
// Factory method for transferring parameters and making destination
var makeDestinationWith: (_ note: Note) -> EditorViewInput? { get }
}
Objective-C Sample
// In general, a module config protocol only contains `makeDestinationWith`, for declaring parameters and destination type. You can also add other properties or methods
@protocol EditorViewModuleInput
// Factory method for transferring parameters and making destination
@property (
nonatomic,
copy,
readonly)
id
_Nullable(^makeDestinationWith)(Note *note);
@end
This configuration works like a factory for the destination with EditorViewModuleInput protocol. It declares parameters for creating the destination.
Now the user can use the module with its module config protocol and transfer parameters:
var note = ...
Router.makeDestination(to: RoutableViewModule<EditorViewModuleInput>()) { (config) in
// Transfer parameters and get EditorViewInput
let destination = config.makeDestinationWith(note)
}
Objective-C Sample
Note *note = ...
[ZIKRouterToViewModule(EditorViewModuleInput)
performPath:ZIKViewRoutePath.showFrom(self)
configuring:^(ZIKViewRouteConfiguration
*config) {
// Transfer parameters and get EditorViewInput
id
destination = config.
makeDestinationWith(note);
}];
For more detail, read Transfer Parameters with Custom Configuration.
Perform on Destination
If you get a destination from other place, you can perform on the destination with its router.
For example, an UIViewController supports 3D touch, and implments UIViewControllerPreviewingDelegate:
class SourceViewController: UIViewController, UIViewControllerPreviewingDelegate {
func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController? {
// Return the destination UIViewController to let system preview it
let destination = Router.makeDestination(to: RoutableView<EditorViewInput>())
return destination
}
func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController) {
guard let destination = viewControllerToCommit as? EditorViewInput else {
return
}
// Show the destination
Router.to(RoutableView<EditorViewInput>())?.perform(onDestination: destination, path: .presentModally(from: self))
}
Objective-C Sample
@implementation SourceViewController
- (nullable UIViewController *)previewingContext:(id
)
previewingContext
viewControllerForLocation
:(
CGPoint)
location {
//Return the destination UIViewController to let system preview it
UIViewController
*destination = [
ZIKRouterToView(EditorViewInput)
makeDestination];
return destination;
}
- (
void)
previewingContext
:(
id
)
previewingContext
commitViewController
:(UIViewController *)
viewControllerToCommit {
// Show the destination
UIViewController
*destination;
if ([viewControllerToCommit
conformsToProtocol:
@protocol(EditorViewInput)]) {
destination = viewControllerToCommit;
}
else {
return;
}
[
ZIKRouterToView(EditorViewInput)
performOnDestination:destination
path:ZIKViewRoutePath.
presentModallyFrom(
self)];
}
@end
Prepare on Destination
If you don't want to show the destination, but just want to prepare an existing destination, you can prepare the destination with its router.
If the router injects dependencies inside it, this can properly setting the destination instance.
var destination: DestinationViewInput = ...
Router.to(RoutableView<EditorViewInput>())?.prepare(destination: destination, configuring: { (config, _) in
config.prepareDestination = { destination in
// Prepare
}
})
Objective-C Sample
UIViewController
*destination = ...
[
ZIKRouterToView(EditorViewInput)
prepareDestination:destination
configuring:^(ZIKViewRouteConfiguration *config) {
config.
prepareDestination = ^(
id
destination) {
// Prepare
};
}];
Remove
You can remove the view by removeRoute, without using pop / dismiss / removeFromParentViewController / removeFromSuperview:
class TestViewController: UIViewController {
var router: DestinationViewRouter
?
func
showEditor() {
// Hold the router
router
= Router.
perform(
to: RoutableView
<EditorViewInput
>(),
path: .
push(
from:
self))
}
// Router will pop the editor view controller
func
removeEditorDirectly() {
guard
let router
= router, router.
canRemove
else {
return
}
router.
removeRoute()
router
=
nil
}
func
removeEditorWithResult() {
guard
let router
= router, router.
canRemove
else {
return
}
router.
removeRoute(
successHandler: {
print(
"remove success")
},
errorHandler: { (action, error)
in
print(
"remove failed, error: \(error)")
})
router
=
nil
}
func
removeEditorAndPrepare() {
guard
let router
= router, router.
canRemove
else {
return
}
router.
removeRoute(
configuring: { (config)
in
config.
animated
=
true
config.
prepareDestination
= { destination
in
// Use destination before remove it
}
})
router
=
nil
}
}
Objective-C Sample
@interface TestViewController()
@property (nonatomic, strong) ZIKDestinationViewRouter(id
) *router;
@end
@implementation
TestViewController
- (
void)
showEditorDirectly {
// Hold the router
self.
router = [
ZIKRouterToView(EditorViewInput)
performPath:ZIKViewRoutePath.
pushFrom(
self)];
}
// Router will pop the editor view controller
- (
void)
removeEditorDirectly {
if (![
self.router
canRemove]) {
return;
}
[
self.router
removeRoute];
self.
router =
nil;
}
- (
void)
removeEditorWithResult {
if (![
self.router
canRemove]) {
return;
}
[
self.router
removeRouteWithSuccessHandler:^{
NSLog(
@"pop success");
}
errorHandler:^(ZIKRouteAction routeAction,
NSError *error) {
NSLog(
@"pop failed,error: %@",error);
}];
self.
router =
nil;
}
- (
void)
removeEditorAndPrepare {
if (![
self.router
canRemove]) {
return;
}
[
self.router
removeRouteWithConfiguring:^(ZIKViewRemoveConfiguration *config) {
config.
animated =
YES;
config.
prepareDestination = ^(UIViewController
*destination) {
// Use destination before remove it
};
}];
self.
router =
nil;
}
@end
For more detail, read Remove Route.
Adapter
You can use another protocol to get router, as long as the protocol provides the same interface of the real protocol. Even the protocol is little different from the real protocol, you can adapt two protocols with category, extension and proxy.
Required protocol used by the user:
/// Required protocol to use editor module
protocol RequiredEditorViewInput: class {
weak var delegate: EditorDelegate? { get set }
func constructForCreatingNewNote()
}
Objective-C Sample
/// Required protocol to use editor module
@protocol RequiredEditorViewInput
@property (
nonatomic,
weak)
id
delegate;
- (
void)
constructForCreatingNewNote;
@end
In the host app context, connect required protocol and provided protocol:
/// In the host app, add required protocol to editor router
class EditorViewAdapter: ZIKViewRouteAdapter {
override class func registerRoutableDestination() {
// If you can get the router, you can just register RequiredEditorViewInput to it
NoteEditorViewRouter.register(RoutableView<RequiredEditorViewInput>())
// If you don't know the router, you can use adapter
register(adapter: RoutableView<RequiredEditorViewInput>(), forAdaptee: RoutableView<EditorViewInput>())
}
}
/// Make NoteEditorViewController conform to RequiredEditorViewInput
extension NoteEditorViewController: RequiredEditorViewInput {
}
Objective-C Sample
/// In the host app, add required protocol to editor router
//EditorViewAdapter.h
@interface EditorViewAdapter : ZIKViewRouteAdapter
@end
//EditorViewAdapter.m
@implementation EditorViewAdapter
+ (void)registerRoutableDestination {
// If you can get the router, you can just register RequiredEditorViewInput to it
[NoteEditorViewRouter registerViewProtocol:ZIKRoutable(RequiredEditorViewInput)];
// If you don't know the router, you can use adapter
[self registerDestinationAdapter:ZIKRoutable(RequiredEditorViewInput) forAdaptee:ZIKRoutable(EditorViewInput)];
}
@end
/// Make NoteEditorViewController conform to RequiredEditorViewInput
@interface NoteEditorViewController (Adapter)
@end
@implementation
NoteEditorViewController (Adapter)
@end
After adapting, RequiredEditorViewInput and EditorViewInput can get the same router.
UseRequiredEditorViewInputto get module:
class TestViewController: UIViewController {
func showEditorDirectly() {
Router.perform(to: RoutableView<RequiredEditorViewInput>(), path: .push(from: self))
}
}
Objective-C Sample
@implementation TestViewController
- (void)showEditorDirectly {
[ZIKRouterToView(RequiredEditorViewInput) performPath:ZIKViewRoutePath.pushFrom(self)];
}
@end
Use required protocol and provided protocol to perfectly decouple modules, adapt interface and declare dependencies of the module. And you don't have to use a public header to manage those protocols.
Modularization
Separating required protocol and provided protocol makes your code truly modular. The caller declares its required protocol, and the provided module can easily be replaced by another module with the same required protocol.
Read the ZIKLoginModule module in demo. The login module depends on an alert module, and the alert module is different in ZIKRouterDemo and ZIKRouterDemo-macOS. You can change the provided module without changing anything in the login module.
For more detail, read Module Adapter.
URL Router
ZIKRouter also provides a default URLRouter. It's easy to communicate with modules via url.
URLRouter is not contained by default. If you want to use it, add submodule pod 'ZIKRouter/URLRouter' to your Podfile , and call [ZIKRouter enableDefaultURLRouteRule] to enable URLRouter.
You can register router with a url:
class NoteEditorViewRouter: ZIKViewRouter
Objective-C Sample
@implementation NoteEditorViewRouter
+ (void)registerRoutableDestination {
[self registerView:[NoteEditorViewController class]];
[self registerViewProtocol:ZIKRoutable(EditorViewInput)];
// Register url
[self registerURLPattern:@"app://editor/:title"];
}
@end
Then you can get the router with it's url:
ZIKAnyViewRouter.performURL("app://editor/test_note", path: .push(from: self))
Objective-C Sample
[ZIKAnyViewRouter performURL:@"app://editor/test_note" path:ZIKViewRoutePath.pushFrom(self)];
And handle URL Scheme:
public func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
let urlString = url.absoluteString
if let _ = ZIKAnyViewRouter.performURL(urlString, fromSource: self.rootViewController) {
return true
} else if let _ = ZIKAnyServiceRouter.performURL(urlString) {
return true
} else {
return false
}
}
Objective-C Sample
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary
id> *)options {
if ([ZIKAnyViewRouter
performURL:urlString
fromSource:
self.rootViewController]) {
return
YES;
}
else
if ([ZIKAnyServiceRouter
performURL:urlString]) {
return
YES;
}
else {
return
NO;
}
}
If your project has different requirements for URL router, you can write your URL router by yourself. You can create custom ZIKRouter as parent class, add more powerful features in it. See ZIKRouter+URLRouter.h.
Other Features
There're other features, you can get details in the documentation:
- Custom Transition in each router, such as switching view controller in tab bar
- Storyboard
- AOP callback in view transition
- Handle Custom Event
Service Router
Instead of view, you can also get any service modules:
/// time service's interface
protocol TimeServiceInput {
func currentTimeString() -> String
}
class TestViewController: UIViewController {
@IBOutlet weak var timeLabel: UILabel!
func callTimeService() {
// Get the service for TimeServiceInput
let timeService = Router.makeDestination(
to: RoutableService<TimeServiceInput>(),
preparation: { destination in
// prepare the service if needed
})
//Use the service
timeLabel.text = timeService.currentTimeString()
}
}
Objective-C Sample
/// time service's interface
@protocol TimeServiceInput
- (
NSString *)
currentTimeString;
@end
@interface TestViewController ()
@property (weak, nonatomic) IBOutlet UILabel *timeLabel;
@end
@implementation TestViewController
- (void)callTimeService {
// Get the service for TimeServiceInput
id
timeService = [
ZIKRouterToService(TimeServiceInput)
makeDestination];
self.
timeLabel.
text = [timeService
currentTimeString];
}
Demo and Practice
ZIKRouter is designed for VIPER architecture at first. But you can also use it in MVC or anywhere.
The demo (ZIKRouterDemo) in this repository shows how to use ZIKRouter to perform each route type. Open Router.xcworkspace to run it.
If you want to see how it works in a VIPER architecture app, go to ZIKViper.
File Template
You can use Xcode file template to create router and protocol code quickly:
The template ZIKRouter.xctemplate is in Templates.
Copy ZIKRouter.xctemplate to ~/Library/Developer/Xcode/Templates/ZIKRouter.xctemplate, then you can use it in Xcode -> File -> New -> File -> Templates.
License
ZIKRouter is available under the MIT license. See the LICENSE file for more info.
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