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Um Pouco Sobre Property Wrappers

Avatar for Fabricio Serralvo Fabricio Serralvo
February 18, 2020
Technology
2
170

Um Pouco Sobre Property Wrappers

35º CocoaTalks Campinas

References:

Swift Property Wrappers - https://nshipster.com/propertywrapper/
The Complete Guide to Property Wrappers in Swift 5 - https://www.vadimbulavin.com/swift-5-property-wrappers/
Property wrappers in Swift - https://www.swiftbysundell.com/articles/property-wrappers-in-swift/

Avatar for Fabricio Serralvo

Fabricio Serralvo

February 18, 2020
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Transcript

  1. FEVEREIRO DE 2020 - COCOAHEADS CAMPINAS PROPERTY WRAPPERS UM POUCO

    SOBRE

  2. Fabrício Serralvo github.com/serralvo

  3. iOS Developer no iFood há quase 2 anos

  4. Co-host Build Failed twitter.com/BuildFailedCast

  5. Agenda Um Pouco Sobre Alguns Casos de Uso Hora da

    Revisão Perguntas e Respostas

  6. Precisamos Falar Sobre @ • Objective-C mandando abraços • Interoperabilidade

    • @IBOutlet e @NSManagedObject • Attributes • @available e @discardableResult
  7. None

  8. Precisamos Falar Sobre @ • Objective-C mandando abraços • Interoperabilidade

    • @IBOutlet e @NSManagedObject • Attributes • @available e @discardableResult
  9. None

  10. Por que falar sobre isso?

  11. @ vai se tornar cada vez mais comum

  12. Um Pouco Sobre • Introduzido no Swift 5.1 • Aparece

    com frequência no SwiftUI • @Binding e @State • Tipo customizado que adiciona semântica e encapsula lógica
  13. None

  14. O Que Define Um Property Wrapper? • Marcação @propertyWrapper •

    Atributo var wrappedValue • Implementação do get e set

  15. Casos de Uso • Trim • UserDefaults

  16. None
  17. None

  18. 1 2 3 4 5

  19. 1 2 3 4 5

  20. Casos de Uso • Trim • UserDefaults

  21. None
  22. None
  23. None
  24. None

  25. Hora Da Revisão • Disponível no Swift 5.1 • Chave

    para o SwiftUI • Reduz boilerplate • Adiciona semântica e legibilidade

  26. Referências

  27. Perguntas?

  28. Obrigado! made with love