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在UIKit中設計和實現(xiàn)可擴展的主題系統(tǒng)可以通過以下步驟實現(xiàn):
protocol Theme {
var backgroundColor: UIColor { get }
var textColor: UIColor { get }
var font: UIFont { get }
// Add more properties as needed
}
class ThemeManager {
static var currentTheme: Theme = LightTheme()
static func switchTheme(_ theme: Theme) {
currentTheme = theme
NotificationCenter.default.post(name: Notification.Name("ThemeChanged"), object: nil)
}
}
struct LightTheme: Theme {
var backgroundColor: UIColor = .white
var textColor: UIColor = .black
var font: UIFont = .systemFont(ofSize: 16)
// Implement other properties and methods
}
struct DarkTheme: Theme {
var backgroundColor: UIColor = .black
var textColor: UIColor = .white
var font: UIFont = .systemFont(ofSize: 16)
// Implement other properties and methods
}
view.backgroundColor = ThemeManager.currentTheme.backgroundColor
label.textColor = ThemeManager.currentTheme.textColor
label.font = ThemeManager.currentTheme.font
ThemeManager.switchTheme(DarkTheme())
通過以上步驟,可以在UIKit中實現(xiàn)一個可擴展的主題系統(tǒng),方便動態(tài)切換主題并統(tǒng)一應用的外觀風格。
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