触摸栏中的SwiftuUI NavigationLink

本文介绍了触摸栏中的SwiftuUI NavigationLink的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在尝试借助SwiftUI在MacBook touchBar中创建NavigationLink.实际上，在我的代码段中，按钮显示在触摸栏中，但不幸的是，该链接不起作用.

I'm trying to create NavigationLink in MacBook touchBar with help of SwiftUI. Actually with my piece of code, the button is shown in touchbar, but unfortunately the link doesn't work.

NavigationView {
  .touchBar {
    NavigationLink(destination: BookView()) {
      Text("GoToBook")
    }
  }
}

struct BookView: View {
  var body: some View {
    Text("Hello")
  }
}

推荐答案

请尝试使用touchBar中的 Button (以编程方式激活 NavigationLink ，如下所示)

Try instead with Button in touchBar activating NavigationLink programmatically, like below

@State private var isActive = false

...

// below in body
NavigationView {
  SomeView()      // << your view here 
  .background(NavigationLink(destination: BookView(), isActive: $isActive) { 
                EmptyView() 
              }  // hidden link
  )
  .touchBar {
     Button("GoToBook") { self.isActive.toggle() } // activate link
  }
}

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