Use NotificationCenter with EventBus style
- Implement publish-subscribe communication between object easily.
- Don't loose time with crash due to missing character, use enum instead.
- don't use NSNotification as parameters of your methods, define the real param directly.
- Define all your communication in a protocol.
NSNotificationCenter.defaultCenter().addObserver(
self,
selector: #selector(testSuccess(_:)),
name: "MyNotificationTest",
object: nil)NSNotificationCenter.defaultCenter().postNotificationName("MyNotificationTest", object: "bonjour" as AnyObject)func testSuccess(notification: Notification) {
if let object = notification.object as String {
}
}Bus.register(self, event: .Test, with: "bonjour")Bus.post(.Test)func testSuccess(str: String) {
print(str)
}CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:
$ gem install cocoapodsTo integrate MagicSwiftBus into your Xcode project using CocoaPods, it in your Podfile:
platform :ios, '9.0'
use_frameworks!
target '<Your Target Name>' do
pod 'MagicSwiftBus'
endThen, run the following command:
$ pod installCarthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks.
You can install Carthage with Homebrew using the following command:
$ brew update
$ brew install carthageTo integrate Magic-Swift-Bus into your Xcode project using Carthage, specify it in your Cartfile:
github "favret/Magic-Swift-Bus" => 3.0.0
Run carthage update to build the framework and drag the built MagicSwiftBus.framework into your Xcode project.
If you prefer not to use either of the aforementioned dependency managers, you can integrate Magic-Swift-Bus into your project manually as an Embedded Framework.
@objc protocol MyEvent {
func testSuccess(str:String)
func makeCoffee()
}Here, you can see that the parameter is a String but it can be something else.
extension ViewController: MyEvent {
func makeCoffee() {
print("☕️")
}
func testSuccess(str: String) {
print(str)
}
}In this exemple, MyReceiver can be UIViewController or NSObject or wathever you want.
class MyBus: Bus {
enum EventBus: String, EventBusType {
case test, makeCoffee
var notification: Selector {
switch self{
case .test: return #selector(MyEvent.testSuccess(str:))
case .makeCoffee: return #selector(MyEvent.makeCoffee)
}
}
}
}First, you have to create a class that inherit Bus.
Then, implement EventBusType protocol. in the above exemple, this protocol is implemented by an enum.
MyBus.register(observer: self, events: .test, .makeCoffee)
...
MyBus.unregisterAll(observer: self)Finally, you can fire an event like that :
MyBus.post(event: .test, with: "hello world")MyBus.postOnMainThread(event: .test, with: "hello world")MyBus.postOnBackgroundThread(event: .test, with: "hello world")MyBus.post(on: DispatchQueue.global(qos: .background), event: .test, with: "hello world")import UIKit
import MagicSwiftBus
@objc protocol MyEvent {
func testSuccess(str:String)
func makeCoffee()
}
class MyBus: Bus {
enum EventBus: String, EventBusType {
case test, makeCoffee
var notification: Selector {
switch self{
case .test: return #selector(MyEvent.testSuccess(str:))
case .makeCoffee: return #selector(MyEvent.makeCoffee)
}
}
}
}
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// Register / Unregister
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
MyBus.register(observer: self, events: .test, .makeCoffee)
MyBus.post(event: .test, with: "helloWorld")
MyBus.post(event: .makeCoffee)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
MyBus.unregisterAll(observer: self)
}
}
//Implement method that you want to use
extension ViewController: MyEvent {
func makeCoffee() {
print("☕️")
}
func testSuccess(str: String) {
print(str)
}
}