如何在iOS 13中设置选项卡栏标题？

我试图在选项卡栏的标题字段中设置更大的字体，但它不起作用。我尝试的更改了视图中图标的大小和文本字段的字体。栏中的标题保持不变。正如你所看到的，我尝试了很多方法（注释行），但它们都不起作用

struct DetailView: View {

var vehicle: Vehicle

var body: some View {
    
    TabView {
       DataView()
        .tabItem {
            Text("Dane")
            .font(.system(size: 18.0, weight: .bold, design: .rounded))
            Image(systemName: "list.bullet")
//.font(.system(size: 30)).bold()//(Font.system(.largeTitle, design: .rounded).weight(.heavy).bold())
        }
        
        RefuelingListView()
            .font(.system(size: 20.0, weight: .bold, design: .rounded))
            .tabItem {
                Text("Wpisy")
                .bold()
                .font(Font.system(.largeTitle, design: .rounded).weight(.heavy))
                Image(systemName: "list.bullet")
               // .font(.system(size: 19))
        }//.font(.largeTitle)
   // }
         //   .textFieldStyle(PlainTextFieldStyle()).font(.system(size: 20))
 //        .onAppear() {
//            UITabBar.appearance().tintColor = .red
    }
    //.font(Font.system(.largeTitle, design: .rounded).weight(.heavy))
}
}

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您可以尝试为选项卡栏添加自定义初始值设定项，如下所示：

struct DetailView: View {

var vehicle: Vehicle

init() {
    UITabBarItem.appearance().setTitleTextAttributes([.font : UIFont.systemFont(ofSize: 20)], for: [])
}

var body: some View {
        // Rest of code
    }
}

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好主意，但我在.onAppear（）{}中将其设置在选项卡的末尾。谢谢。