🔰view modifier

SwiftUI ⟩ view ⟩ modifier

A view modifier is used to customize the appearance╱behavior of a view. Since modifiers are applied in order, swapping their positions can change the appearance╱behavior of the resulting view.

Rectangle()
    // ⭐️ view modifiers
    .foregroundColor(.blue)    // change appearance (foreground color)
    .border(.green)            // change appearance (border color)

🔴 主題

• layout modifier

• rendering modifier

• view modifier examples

• ViewModifier (protocol)

• add modifiers to Xcode

• animate state changes

📘 手冊

• SwiftUI ⟩ View fundamentals ⟩ View ⟩ Layout modifiers

📗 參考

• 彼得潘 ⟩ Keep Going with Apps