如何在SwiftUI中更改DatePicker的大小

import SwiftUI

struct ContentView: View {
    var body: some View {
        DatePicker("Select a date", selection: .constant(Date()))
            .frame(width: 200, height: 200) // 设置宽度和高度
            .padding()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

import SwiftUI

struct ContentView: View {
    var body: some View {
        GeometryReader { geometry in
            DatePicker("Select a date", selection: .constant(Date()))
                .frame(width: geometry.size.width * 0.8, height: geometry.size.height * 0.5) // 根据父视图的大小调整
                .padding()
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

import SwiftUI

struct DatePickerModifier: ViewModifier {
    let width: CGFloat
    let height: CGFloat
    
    func body(content: Content) -> some View {
        content.frame(width: width, height: height)
    }
}

extension AnyTransition {
    static var datePickerSize: AnyTransition {
        .modifier(
            active: DatePickerModifier(width: 200, height: 200),
            identity: DatePickerModifier(width: 200, height: 200)
        )
    }
}

struct ContentView: View {
    var body: some View {
        DatePicker("Select a date", selection: .constant(Date()))
            .modifier(DatePickerModifier(width: 200, height: 200))
            .padding()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}