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#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding #@environment #@stateobject #@observedobject #@propertywrapper

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#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding #@environment #@stateobject #@observedobject #@propertywrapper

Capítulo 5: Casos de Uso Avanzados de Property Wrappers en SwiftUI.

import SwiftUI

// Capítulo 5: Casos de Uso Avanzados de Property Wrappers en SwiftUI.
// Ejemplo: Combinando diferentes Property Wrappers...

class UserData: ObservableObject {
    @Published var name: String = "John Doe"
}

@propertyWrapper
struct UpperCase {
    private(set) var value: String
    
    var wrappedValue: String {
        get { value }
        set { value = newValue.uppercased() }
    }
    
    init(wrappedValue: String) {
        self.value = wrappedValue.uppercased()
    }
}

struct User {
    @UpperCase var name: String
}

struct UserView: View {
    @ObservedObject var userData: UserData
    
    var body: some View {
        VStack {
            Text("Hello, \(userData.name)")
            TextField("Enter your name", text: $userData.name)
        }
    }
}

struct ContentView: View {
    @ObservedObject var userData = UserData()
    @State var user = User(name: "John Doe")
    
    var body: some View {
        VStack {
            UserView(userData: userData)
            Text("Hello, \(user.name)")
            TextField("Enter your name", text: $user.name)
        }
    }
}

#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding #@environment #@stateobject #@observedobject #@propertywrapper

Capítulo 4: Creando nuestros propios Property Wrappers

import SwiftUI

// Capítulo 4: Creando nuestros propios Property Wrappers

@propertyWrapper
struct UpperCase {
    private(set) var value: String
    
    var wrappedValue: String {
        get { value }
        set { value = newValue.uppercased() }
    }
    
    init(wrappedValue: String) {
        self.value = wrappedValue.uppercased()
    }
}

struct User {
    @UpperCase var name: String
}

struct UserView: View {
    @ObservedObject var user: User
    
    var body: some View {
        VStack {
            Text("Hello, \(user.name)")
            TextField("Enter your name", text: $user.name)
        }
    }
}

struct ContentView: View {
     var body: some View {
       UserView(user: User(name: "John Doe"))
     }
}

#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding #@environment #@stateobject #@observedobject

Capitulo 3: Property Wrappers ejemplo: 5

import SwiftUI

class UserData: ObservableObject {
    @Published var name: String = "John Doe"
}

struct UserView: View {
    @ObservedObject var userData: UserData
    
    var body: some View {
        VStack {
            Text("Hello, \(userData.name)")
            TextField("Enter your name", text: $userData.name)
        }
    }
}

struct ContentView: View {
    var body: some View {
        UserView(userData: UserData())
    }
}

#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding #@environment #@stateobject

Capitulo 3: Property Wrappers ejemplo: 4

import SwiftUI

class UserData: ObservableObject {
    @Published var name: String = "John Doe"
}

struct UserView: View {
    @StateObject var userData: UserData
    
    var body: some View {
        VStack {
            Text("Hello, \(userData.name)")
            TextField("Enter your name", text: $userData.name)
        }
    }
}

struct ContentView: View {
    var body: some View {
        UserView(userData: UserData())
    }
}

#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding #@environment

Capitulo 3: Property Wrappers ejemplo: 3

import SwiftUI

struct UserSettings {
    var fontSize: CGFloat = 17
}

struct UserView: View {
    @EnvironmentObject var userSettings: UserSettings
    
    var body: some View {
        VStack {
            Text("Hello, World")
                .font(.system(size: userSettings.fontSize))
            Slider(value: $userSettings.fontSize, in: 10...30)
        }
    }
}

struct ContentView: View {
    var body: some View {
        UserView().environmentObject(UserSettings())
    }
}

#firebase #swiftui #firestore #firestorage #firebaseauth #property #wrappers #@biding

Capitulo 3: Property Wrappers ejemplo: 2

import SwiftUI

struct User {
    var name: String
}

struct UserView: View {
    @Binding var user: User
    
    var body: some View {
        VStack {
            Text("Hello, \(user.name)")
            TextField("Enter your name", text: $user.name)
        }
    }
}

struct ContentView: View {
    @State var user = User(name: "John Doe")
    
    var body: some View {
        UserView(user: $user)
    }
}

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Capítulo 5: Casos de Uso Avanzados de Property Wrappers en SwiftUI.

Capítulo 4: Creando nuestros propios Property Wrappers

Capitulo 3: Property Wrappers ejemplo: 5

Capitulo 3: Property Wrappers ejemplo: 4

Capitulo 3: Property Wrappers ejemplo: 3

Capitulo 3: Property Wrappers ejemplo: 2

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