swiftui - 有没有一种方法可以在“分段选择器”中将自定义字体设置为其他样式？

Question

我想在带有PickeredPickerStyle()的Picker中设置一些字体样式。
但是，任何字体格式都将被忽略。有没有一种方法可以为segmentedPicker设置字体？
我很确定它适用于默认的pickerWheel。

import UIKit
import PlaygroundSupport
import SwiftUI

 // Make a SwiftUI view
 struct ContentView: View {
  @State private var selection: Int = 2
     var body: some View {
      Picker("", selection: self.$selection) {
                    Text("Shape").tag(0)
                    Text("Height").tag(1)
        Text("Media").tag(2).font(.headline)
                    }
                      .font(.headline)
                      .cornerRadius(8)
                      .padding(10)
                      .pickerStyle(SegmentedPickerStyle())
     }
}

// Make a UIHostingController
let viewController = UIHostingController(rootView: ContentView())

// Assign it to the playground's liveView
PlaygroundPage.current.liveView = viewController

// RUN!

Answer 1

SwiftUI在后台使用UIKit(适用于iOS)，您应该使用UISegmentedControl的外观:

struct ContentView: View {

    init() {
        UISegmentedControl.appearance().selectedSegmentTintColor = .red
        UISegmentedControl.appearance().setTitleTextAttributes(
            [
                .font: UIFont.boldSystemFont(ofSize: 24),
                .foregroundColor: UIColor.white
        ], for: .selected)

        UISegmentedControl.appearance().setTitleTextAttributes(
            [
                .font: UIFont.boldSystemFont(ofSize: 12),
                .foregroundColor: UIColor.blue
        ], for: .normal)
    }

    var body: some View { ,,, }
}