1。建造型模式Creational

• 单例模式Singleton

2。结构型模式Structural

• MVC

MVC

• 装饰器Decorator

Extensions and Delegation.

• 适配器Adapter

• 立面Facade

Facade

3。行为型模式Behavioral

• Observer

  • KVO

  • Notification

• Memento 状态记忆

The memento pattern captures and externalizes an object's internal state.

Storyboard设置VC的Restoration ID

• AppDelegate.swift中加入方法:

func application(_ application: UIApplication, shouldSaveApplicationState coder: NSCoder) -> Bool {
  return true
}

func application(_ application: UIApplication, shouldRestoreApplicationState coder: NSCoder) -> Bool {
  return true
}

• ViewController中加入方法:

override func encodeRestorableState(with coder: NSCoder) {
  coder.encode(currentAlbumIndex, forKey: Constants.IndexRestorationKey)
  super.encodeRestorableState(with: coder)
}

override func decodeRestorableState(with coder: NSCoder) {
  super.decodeRestorableState(with: coder)
  currentAlbumIndex = coder.decodeInteger(forKey: Constants.IndexRestorationKey)
  showDataForAlbum(at: currentAlbumIndex)
  horizontalScrollerView.reload()
}

• Archiving and Serialization

链接

https://www.raywenderlich.com/160651/design-patterns-ios-using-swift-part-12
https://github.com/ochococo/Design-Patterns-In-Swift